CN207027889U - A kind of forced action type oscillating mixer of hollow agitating shaft continuous vibration - Google Patents

Abstract

A kind of forced action type oscillating mixer of hollow agitating shaft continuous vibration, including vibratory drive motor, vibrating shaft, reverse eccentric bushing, agitating shaft, mixing drum and stirring motor；Two agitating shafts are parallel to be arranged in mixing drum, and parallel with mixing drum inwall, and the both ends of agitating shaft pass mixing drum, and agitating shaft is hollow shaft；Vibrating shaft, which runs through, to be arranged in agitating shaft, and eccentric setting parallel with agitating shaft, one end of vibrating shaft are connected with vibratory drive motor；One end of agitating shaft is connected with stirring motor；Reverse eccentric bushing is provided between the both ends of agitating shaft and mixing drum.It is always continuous vibration in whole work process that the utility model has the eccentric and reverse eccentric bushing agitating shaft of installation by agitating shaft both ends Relative Vibration axle, improves mixing quality and sealing effectiveness.

Description

A forced vibration mixer with equal amplitude vibration of hollow stirring shaft

technical field

The utility model belongs to the technical field of forced vibration mixer equipment, in particular to a forced vibration mixer with equal-amplitude vibration of a hollow stirring shaft.

Background technique

Concrete mixer is a special equipment for mixing materials such as cement, sand, stone and water according to a certain proportion into concrete that is uniform and meets the actual construction requirements. Most of the existing ordinary mixers drive the mixing blades on the stirring arm through the stirring shaft to stir various raw materials to achieve uniform mixing. The study found that the ordinary mixer can only make the material uniform on the macroscopic level, and the macroscopically uniform concrete is observed through a microscope to find that some cement particles still cohere into tiny cement balls, that is, the material is not uniform on the microscopic level. As a result, the hydration of cement cannot be fully exerted, and the strength and durability of concrete structures still have great potential for improvement.

Existing vibrating mixer has solved this problem well. The new vibrating mixer breaks the cement agglomeration phenomenon through the combination of macroscopic stirring and microscopic vibration, so that the hydration of cement is enhanced, which not only improves the quality of concrete, but also reduces the amount of cement used.

In existing vibrating mixers such as patent 201510231725.6, due to the existence of a certain eccentricity between the vibration shaft and the stirring shaft connected by the vibrator, this makes the stirring shaft not only rotate around its own axis during the working process, but also around the The axis of the vibrating shaft revolves, and its revolution radius presents a tapered state that decreases from the left end to the right end. This has caused some limitations. On the one hand, the amplitude of the stirring shaft length is not equal, the vibration stirring effect is not fully exerted, and there is still room for improvement in the stirring quality and efficiency; on the other hand, the sealing hole between the stirring shaft and the mixing drum shell The gaps alternate, the sealing structure is complex and unreliable, and it is easy to cause slurry leakage.

Utility model content

The purpose of the utility model is to provide a forced vibration mixer with equal amplitude vibration of the stirring shaft to solve the problems of insufficient vibration and stirring effect and poor sealing of the stirring shaft shaft end in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A forced vibration mixer with equal amplitude vibration of a hollow stirring shaft, comprising a vibration drive motor, a vibration shaft, a reverse eccentric sleeve, a stirring shaft, a stirring drum and a stirring drive motor; two stirring shafts are arranged in parallel in the mixing drum, and Parallel to the inner wall of the mixing drum, both ends of the stirring shaft pass through the mixing drum, and the stirring shaft is a hollow shaft; the vibrating shaft is set through the stirring shaft, and is parallel and eccentrically arranged with the stirring shaft, and one end of the vibrating shaft is connected to a vibration drive motor; One end of the stirring shaft is connected with a stirring drive motor; reverse eccentric sleeves are arranged between both ends of the stirring shaft and the stirring drum.

Further, a first support bearing is provided on the vibration shaft close to the vibration drive motor; the vibration shaft and the vibration drive motor are connected through a belt transmission; both ends of the stirring shaft are provided with second support bearings for supporting the vibration shaft; The rotation centers of the first support bearing and the second support bearing are parallel, and the eccentricity of the stirring shaft relative to the vibrating shaft is A.

Further, a reducer is arranged between the stirring drive motor and the stirring shaft, the output end of the reducer is connected to the stirring shaft, and a first support bearing is arranged between the reducer and the stirring shaft; a belt is passed between the reducer and the stirring drive motor Transmission connection, the number of stirring drive motors is 1 or 2.

Further, a sealing device is provided between the outside of the reverse eccentric sleeve and the mixing drum.

Further, a number of stirring arms are arranged on the stirring shaft, and stirring blades are arranged on the stirring arm; the included angle between adjacent stirring arms on the same stirring shaft is 30°～90°, and the same vertical plane on adjacent stirring shafts The angle between the two stirring arms inside is 0-90°.

Further, a feed inlet is provided above the mixing drum, and a discharge port is provided below the mixing drum.

Compared with the prior art, the utility model has the following technical effects:

Both ends of the stirring shaft of the utility model have eccentricity, and the reverse eccentric sleeves are installed at both ends of the stirring shaft so that the stirring shaft is always in a constant amplitude vibration state during the whole working process, and the vibration stirring effect is good to improve the stirring quality, and it is easy to seal.

The vibrating shaft of the vibrating mixer of the utility model adopts a solid shaft body, the stirring shaft adopts a hollow shaft body, and the vibrating shaft traverses the entire stirring shaft. This enables the vibration energy of the vibrating mixer to be fully transmitted to the material to be stirred during the working process, the mixing effect is more ideal and the energy consumption is low, which can well meet the needs of practical engineering.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model double agitation drive motor.

Fig. 2 is a structural schematic diagram of a single stirring drive motor of the present invention.

Among them: 1. Vibration drive motor; 2. Stirring blade; 3. Stirring arm; 4. Stirring shaft; 5. Stirring drum; 6. Reducer; 7. Stirring drive motor; 8. Reverse eccentric sleeve; 9. Vibrating shaft ; 10, the first support bearing; 11, the sealing device; 13, the second support bearing.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described:

A forced vibration mixer with equal amplitude vibration of a hollow stirring shaft, comprising a vibration drive motor 1, a vibration shaft 9, a reverse eccentric sleeve 8, a stirring shaft 4, a stirring drum 5, and a stirring drive motor 7; two stirring shafts 4 are parallel set in the mixing drum 5, and parallel to the inner wall of the mixing drum 5, both ends of the stirring shaft 4 pass through the mixing drum 5, and the stirring shaft 4 is a hollow shaft; Shaft 4 is parallel and eccentrically arranged, one end of vibrating shaft 9 is connected with vibration driving motor 1; one end of stirring shaft 4 is connected with stirring driving motor 7; reverse eccentric sleeve 8 is arranged between both ends of stirring shaft 4 and the mixing drum .

A first support bearing 10 is arranged on the vibrating shaft 9 close to the vibrating drive motor 1; the vibrating shaft 9 is connected with the vibrating driving motor 1 through a belt drive; Two supporting bearings 13; the rotation centers of the first supporting bearing 10 and the second supporting bearing 13 are parallel, and the eccentricity of the stirring shaft 4 relative to the vibrating shaft 9 is A.

A speed reducer 6 is arranged between the stirring drive motor 7 and the stirring shaft 4, the output end of the speed reducer 6 is connected with the stirring shaft 4, and a first support bearing 10 is arranged between the speed reducer 6 and the stirring shaft 4; the speed reducer 6 and the stirring shaft The driving motors 7 are connected through a belt transmission, and the number of the stirring driving motors 7 is 1 or 2.

A sealing device 11 is provided between the outside of the reverse eccentric sleeve 8 and the mixing drum 5 .

A number of stirring arms 3 are arranged on the stirring shaft 4, and stirring blades 2 are arranged on the stirring arms 3; the included angle between adjacent stirring arms 3 on the same stirring shaft 4 is 30°～90°, and the The included angle between the two stirring arms 3 in the same vertical plane is 0-90°.

The top of the mixing drum 5 is provided with a feed inlet, and the bottom of the mixing drum 5 is provided with a discharge port.

Example 1:

As shown in Figure 1, the stirring drive device of the vibrating mixer consists of two identical stirring drive motors 7 and a reducer 6. The motor shaft of the stirring drive motor 7 is connected with the input shaft of the speed reducer 6 through a belt drive, and the input shafts of the two speed reducers 6 realize the synchronous rotation of the two speed reducers through the transmission shaft. The output shaft of the reducer 6 is connected with the stirring shaft 4, so as to realize the rotation of the stirring shaft during normal operation.

The vibrating device of the vibrating mixer consists of one or two identical vibrating drive motors 1 and vibrating shafts 9 . The motor shaft of the vibrating drive motor 1 is connected to the left end of the vibrating shaft 9 through a belt drive, the right end of the vibrating shaft 9 traverses the hollow stirring shaft, and the second support bearing 13 provided at both ends of the stirring shaft drives the rotation of the stirring shaft 4 , to achieve the vibration function in normal work.

In the structural arrangement of the vibrating mixer, a first supporting bearing 10 is installed on the vibrating shaft 9, its left end is connected to the motor shaft of the vibrating drive motor 1 through a belt drive, and its right end passes through the second supporting bearing 13 provided at both ends of the agitating shaft across the hollow stirring shaft. In the stirring device, since the input shafts of the two reducers 6 are connected through the transmission shaft, the two stirring shafts 5 are always in synchronous rotation. In the vibrating device, the two vibrating shafts 9 are respectively driven by one or two independent vibrating drive motors 1, so the vibrating shaft 9 and the stirring shaft 4 connected by the vibrator can work normally at different speeds.

In ordinary vibrating mixers, due to the eccentricity between the vibrating shaft and the agitating shaft, during the working process of the vibrating mixer, the agitating shaft should not only rotate around its own axis, but also revolve around the axis of the vibrating shaft, and its revolution The radius presents a tapered state that gradually decreases from the left end to the right end. This not only makes it difficult to seal between the stirring shaft and the shaft hole of the mixing drum, but also the unequal amplitude vibration of the stirring shaft reduces the vibration stirring effect, aggravates the wear of the support bearing, and greatly reduces the service life of the vibrating mixer. For this reason, the left and right ends of the two stirring shafts 4 are eccentric with the vibration shaft and the reverse eccentric sleeve 8 is installed, so that the rotation center of the reverse eccentric sleeve 8 coincides with the center of the sealing hole of the mixing drum shell, and the eccentric sleeve The common sealing device 11 is adopted between the mixing drum shell and the mixing shaft, so that the stirring shaft is always in a state of equal amplitude vibration during the whole working process, which enhances the vibration stirring effect. In addition, the complex seal with unequal amplitude vibration is converted into a simple seal with equal amplitude vibration, and the wear of the supporting bearings at both ends of the stirring shaft is reduced.

Example 2:

As shown in FIG. 2 , the stirring drive device of the vibrating mixer is composed of a stirring drive motor 7 and a reducer 6 . The motor shaft of the stirring drive motor 7 is connected with the input shaft of the speed reducer 6 through a belt drive, and the input shafts of the two speed reducers 6 realize the synchronous rotation of the two speed reducers through the transmission shaft. The output shaft of the reducer 6 is connected with the stirring shaft 5, so as to realize the rotation of the stirring shaft during normal operation.

The vibrating device of the vibrating mixer consists of one or two identical vibrating drive motors 1 and vibrating shafts 9 . The motor shaft of the vibrating drive motor 1 is connected to the left end of the vibrating shaft 9 through a belt drive, the right end of the vibrating shaft 9 traverses the hollow stirring shaft, and the second support bearing 13 provided at both ends of the stirring shaft drives the rotation of the stirring shaft 4 , to achieve the vibration function in normal work.

In the structural arrangement of the vibrating mixer, the vibrating shaft 9 is installed on the frame through the first supporting bearing 10, its left end is connected to the motor shaft of the vibrating drive motor 1 through a belt drive, and its right end is vibrated by the vibration excitation provided at both ends of the agitating shaft. The bearing inside the device traverses the hollow stirring shaft. In the stirring device, since the input shafts of the two reducers 6 are connected through the transmission shaft, the two stirring shafts 5 are always in synchronous rotation. In the vibrating device, the two vibrating shafts 9 are respectively driven by a vibrating drive motor 1, so the vibrating shaft 9 and the stirring shaft 4 connected by the vibrator can work normally at different speeds.

In ordinary vibrating mixers, due to the eccentricity between the vibrating shaft and the agitating shaft, during the working process of the vibrating mixer, the agitating shaft should not only rotate around its own axis, but also revolve around the axis of the vibrating shaft, and its revolution The radius presents a tapered state that gradually decreases from the left end to the right end. This not only makes it difficult to seal between the stirring shaft and the shaft hole of the mixing drum, but also the unequal amplitude vibration of the stirring shaft reduces the vibration stirring effect, aggravates the wear of the support bearing, and greatly reduces the service life of the vibrating mixer. For this reason, the left and right ends of the two stirring shafts 4 are eccentric with the vibration shaft and the reverse eccentric sleeve 8 is installed, which not only realizes the equal amplitude vibration of the stirring shaft but also makes the rotation center of the reverse eccentric sleeve 8 and the mixing drum The center of the sealing hole of the shell coincides, and the common sealing device 11 is used between the eccentric sleeve and the shell of the mixing drum, so that the stirring shaft is always in a constant amplitude vibration state during the whole working process, and the vibration stirring effect is enhanced. In addition, the complex seal with unequal amplitude vibration is converted into a simple seal with equal amplitude vibration, and the wear of the supporting bearings at both ends of the stirring shaft is reduced.

The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement and improvement made within the principles shall be included in the protection scope of the present utility model.

Claims (6)

1. a kind of forced action type oscillating mixer of hollow agitating shaft continuous vibration, it is characterised in that including vibratory drive motor (1), vibrating shaft (9), reverse eccentric bushing (8), agitating shaft (4), mixing drum (5) and stirring motor (7)；Two agitating shafts (4) parallel to be arranged in mixing drum (5) and parallel with mixing drum (5) inwall, the both ends of agitating shaft (4) pass mixing drum (5), agitating shaft (4) is hollow shaft；Vibrating shaft (9) is interior through agitating shaft (4) is arranged on, and bias parallel with agitating shaft (4) is set Put, one end of vibrating shaft (9) is connected with vibratory drive motor (1)；One end of agitating shaft (4) is connected with stirring motor (7)； Reverse eccentric bushing (8) is provided between the both ends of agitating shaft (4) and mixing drum.

A kind of 2. forced action type oscillating mixer of hollow agitating shaft continuous vibration according to claim 1, it is characterised in that The first spring bearing (10) is provided with the vibrating shaft (9) close to vibratory drive motor (1)；Vibrating shaft (9) and vibratory drive Motor is connected between (1) by V belt translation；Second for supporting vibrating shaft (9) is provided with inside agitating shaft (4) both ends Support bearing (13)；First spring bearing (10) is parallel with the pivot of the second spring bearing (13), and agitating shaft is relative to shaking The offset of moving axis is A.

A kind of 3. forced action type oscillating mixer of hollow agitating shaft continuous vibration according to claim 1, it is characterised in that Reductor (6) is provided between stirring motor (7) and agitating shaft (4), output end and the agitating shaft (4) of reductor (6) connect Connect, the first spring bearing (10) is provided between reductor (6) and agitating shaft (4)；Reductor (6) and stirring motor (7) Between connected by V belt translation, stirring motor (7) number be 1 or 2.

A kind of 4. forced action type oscillating mixer of hollow agitating shaft continuous vibration according to claim 1, it is characterised in that On the outside of reverse eccentric bushing (8) sealing device (11) is provided between mixing drum (5).

A kind of 5. forced action type oscillating mixer of hollow agitating shaft continuous vibration according to claim 1, it is characterised in that Some mixing arms (3) are provided with agitating shaft (4), stirring vane (2) is provided with mixing arm (3)；On same root agitating shaft (4) Angle between adjacent mixing arm (3) is 30 °~90 °, two mixing arms on adjacent agitating shaft (4) in same perpendicular (3) angle is 0~90 °.

A kind of 6. forced action type oscillating mixer of hollow agitating shaft continuous vibration according to claim 1, it is characterised in that Charging aperture is provided with above mixing drum (5), mixing drum is provided with discharging opening below (5).