CN211440575U - Concrete mixing device - Google Patents

Abstract

The utility model discloses a concrete mixing device, including setting up two stirring driving motor and a vibration driving motor on the stirring barrel respectively, stirring driving motor and vibration driving motor are connected through agitating unit and the vibration exciter that transmission set up in with the stirring barrel respectively, and the vibration exciter passes through the sun gear meshing that vibration exciter power transmission planet wheel set up on with the vibration driving motor and is connected, and the bottom of stirring barrel is provided with discharge apparatus, and discharge apparatus and the outside hydraulic system and the electrical system who sets up of stirring barrel are connected. The utility model discloses simple structure need not set up the necessary ring gear of traditional planetary gear train, has greatly simplified reduction gears.

Description

Concrete mixing device

Technical Field

The utility model belongs to the technical field of the concrete mixer, concretely relates to concrete mixing device.

Background

Mixing is the most basic and necessary method of making concrete. The stirrer is a mechanical device for implementing stirring, and raw materials such as water, cement, sandstone aggregate, additives and the like are uniformly mixed into a mixture meeting the quality requirement through the stirrer. The concrete performance is directly dependent on the mixer used for preparing the concrete and the mixing process thereof under the condition of certain composition materials and mixing ratio. The forced mixer is used as the most widely used concrete mixer, and the mechanical action provided by the mixing mechanism can quickly and uniformly disperse materials in violent relative motion, so that the mixing efficiency and the concrete performance are obviously improved.

Forced mixers can be divided into different types according to different mixing mechanisms, and double-horizontal-shaft mixers and vertical-shaft planetary mixers are mainstream models configured in various concrete mixing stations (buildings) at present. The double horizontal shaft type stirrer consists of a horizontally arranged double-circular-groove-shaped stirring barrel, two stirring shafts rotating in opposite directions and stirring blades arranged on the stirring shafts to form a spiral structure, and the mixture is uniform in axial and radial circulating motion along the stirring barrel during working. The horizontal stirring shaft of the double-horizontal-shaft stirrer has a weak link of shaft end sealing, solid particle mortar contained in a mixture is easy to intrude during working to generate slurry leakage, so that parts such as the stirring shaft and a bearing are damaged, and the reliability and the service life of the machine are seriously reduced. Meanwhile, the inherent speed gradient phenomenon in the circular groove-shaped mixing drum enables the position close to the stirring shaft to become a low-efficiency stirring area, and the stirring efficiency and the performance of finished concrete are restricted. The vertical shaft planetary mixer consists of a vertically arranged single-circular-groove-shaped mixing drum, an eccentrically arranged stirring shaft and stirring blades, and when the mixer works, a mixture circularly moves along the circumferential direction of the mixing drum under the pushing of revolution and autorotation of the blades. Compared with a double-horizontal-shaft stirrer, the planetary stirring blade has a complex motion track, can be related to any position of the bottom surface of the stirring cylinder, does not have a stirring low-efficiency area, and does not need shaft end sealing in a vertical shaft insertion type stirring mode, so that the stirring intensity of the stirrer is high, and the stirring quality is good.

The existing vertical shaft planetary mixers are all static mixing and rely on rotating blades to exert forced mixing action on materials. Because aggregates formed when powdery materials such as cement and the like are stirred in water usually move integrally in a liquid phase with a certain thickness in a unit form, the aggregates are not damaged effectively due to the forced actions such as shearing, extrusion and the like applied in the rotation and revolution processes of the stirring blades, and 10-30% of cement particles still form tiny cement clusters, so that the consumption of cement and water is increased, and the construction workability and the hardening strength of finished concrete are seriously influenced. The vibration exciter adopted by the existing vibration stirring machinery is usually arranged inside or outside the stirring cylinder, and the position is fixed during working. Because the viscous force among concrete components is large, and the damping is fast when the vibration is transmitted, the vibration stirring can only generate good vibration effect on the mixture in a certain range near the vibration exciter, and the mixture in the whole mixing drum space can not be ensured to be fully and sufficiently vibrated. In order to ensure a sufficient vibration action range, the vibration acceleration required by the vibration exciter is often more than 15g, so that the dynamic load of the vibration mechanism is greatly increased, the working reliability of the machine is reduced, and the service life of the machine is prolonged. Although the vibration stirring mode in which the vibration and the stirring blade are integrated can increase the action range of the vibration and reduce the required vibration acceleration, the structure is difficult to realize the dynamic balance of the vibration transmission shaft. Because this kind of integration vibration exciter uses (mixing) shaft and stirring vane as the vibration part, and a plurality of side blades that structure and quality are all inequality are fixed on the (mixing) shaft with different phase angle with main blade, can't guarantee vibration exciter casing quality along the axial of (mixing) shaft and circumference law distribution to it is difficult to realize that inertia force and inertia moment of couple that its each eccentric mass produced can be balanced simultaneously when the vibration transmission shaft is in operation. The requirement of vibration reduction is increased, additional vibration is brought to a transmission system and a supporting system, noise is increased, reliability is reduced, and the service life is prolonged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem lie in not enough among the above-mentioned prior art, a concrete mixing device is provided, combine together through built-in vibration exciter and planet stirring, make vibration exciter limit vibration limit along with the synchronous revolution of planet stirring vane, the vibration effect scope is big, can guarantee that the whole mixture of mixing in the section of thick bamboo space all receives the vibration effect, only need 4 ~ 6 g's vibration acceleration, just can ensure the good vibration effect of mixture, the vibration exciter casing of axial symmetry revolution solid structure simultaneously, can strictly realize the dynamic balance of vibration transmission shaft according to the mechanics principle, not only improve stirring quality and efficiency, and job stabilization nature and good reliability.

The utility model adopts the following technical scheme:

the utility model provides a concrete mixing device, is including setting up two stirring driving motor and a vibration driving motor on the stirring barrel respectively, stirring driving motor and vibration driving motor are connected through agitating unit and the vibration exciter that sets up in transmission and the stirring barrel respectively, and the vibration exciter passes through the vibration exciter power transmission planet wheel and is connected with the sun gear meshing that sets up on the vibration driving motor, and the bottom of stirring barrel is provided with discharge apparatus, and discharge apparatus is connected with the outside hydraulic system and the electric system that set up of stirring barrel.

Specifically, a cylinder cover is arranged on the stirring cylinder body, the upper part of the cylinder cover is respectively connected with corresponding stirring driving motors through planetary reducers, and a cylinder sleeve for mounting a slewing bearing is arranged on the inner side of the upper part of the cylinder cover; the rotary support comprises a rotary support outer ring and a rotary support inner ring, the barrel sleeve is connected with the rotary support outer ring through the rotary support inner ring, the rotary support outer ring is connected with a male rotary body shell through a bolt and is meshed with a stirring driving gear on an output shaft of the planetary reducer through teeth; a planetary rotating shaft and a vibration exciter power input shaft are arranged in the revolution body shell and are respectively connected with a stirring device and a vibration exciter.

Further, the bottom of the sleeve is provided with a revolution body shell and a revolution sun gear, and the bottom of the revolution body shell is provided with a side scraper device.

Furthermore, a stirring transmission planet wheel is arranged on the planet rotating shaft, and a vibration exciter power transmission planet wheel is arranged on the vibration exciter power input shaft.

Furthermore, a power output shaft of a vibration exciter driving device of the vibration driving motor is connected with a vibration exciter power transmission shaft through a diaphragm coupling, the vibration exciter power transmission shaft penetrates through the sleeve and is arranged on the male rotating body shell, the lower end of the vibration exciter power transmission shaft is connected with the sun gear, and a drum tooth coupling arranged at the lower end of a vibration exciter power input shaft is connected with the vibration exciter.

Specifically, the vibration exciter comprises a vibration transmission shaft, a first eccentric bearing seat and a second eccentric bearing seat are sleeved on the vibration transmission shaft, the vibration exciter shell is installed on the first eccentric bearing seat and the second eccentric bearing seat through a first supporting bearing and a second supporting bearing, four reinforcing blades are arranged on the outer surface of the vibration exciter shell, and the four reinforcing blades are symmetrically distributed on the rotation axis of the vibration exciter shell.

Furthermore, a first balance eccentric block and a second balance eccentric block are correspondingly arranged on two sides of the first supporting bearing and the second supporting bearing, the eccentric directions of the first balance eccentric block and the second balance eccentric block are opposite to the eccentric directions of the first eccentric bearing seat and the second eccentric bearing seat, and the vibration exciter shell, the first supporting bearing, the second supporting bearing, the first eccentric bearing seat, the second eccentric bearing seat and the reinforcing blade are eccentrically arranged on the vibration transmission shaft.

Specifically, the stirring device comprises three stirring arms arranged at intervals, and the three stirring arms are arranged on the connecting frame; the planet stirring blade is arranged at the lower end of the stirring arm through the stirring blade connecting seat.

Specifically, discharge apparatus is provided with hydraulic motor and hydraulic pressure platform including installing the support piece at the agitator barrel outer wall on the support piece respectively, and hydraulic motor is connected with the rotatory discharge door of agitator barrel bottom through the pneumatic cylinder of unloading of hydraulic pressure platform.

Specifically, the inner wall and the bottom of the stirring cylinder body are both provided with wear-resistant lining plates.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model relates to a concrete mixing device, which combines the built-in vibration exciter and the planetary mixing, and mixes the materials evenly; by adopting the overhead transmission scheme, all the transmission devices are arranged at the upper part of the stirring tank and are completely separated from the concrete, so that the maintenance is simple; after the configuration and the commercial concrete mixing plant, can realize automatic ratio material, whole stirring process can be according to procedure automatic operation, shortens the churning time through efficient planet vibration stirring, and production efficiency is high.

Furthermore, the cylinder body is a vertical shaft fixed disc type, and does not rotate relative to the geometric center of the cylinder. The motion track of the material in the mixing drum is continuous and smooth, no dead angle position occurs, and the structure is simpler than a rotating disc type structure.

Further, the utility model discloses a vibration stirring and planet stirring combine together, and built-in vibration exciter limit vibration limit is along with the synchronous revolution of planet stirring vane, can guarantee that the mixture in the whole section of thick bamboo space of mixing all receives the vibration effect, and the vibration effect scope is big, and the vibration effect is good.

Furthermore, the planetary stirring transmission device combines the planetary transmission composed of a standard planetary reducer and a slewing bearing, and the transmission mode has convenient assembly and maintenance and high use reliability; meanwhile, a gear ring required by the traditional planetary gear train is not required to be arranged, so that the revolution body shell plays the role of a planet carrier, and the speed reducing mechanism is greatly simplified.

Furthermore, a transmission shaft of the vibration transmission device can directly penetrate through a sleeve of the inner ring of the slewing bearing, and the stirring transmission space is not occupied.

Further, the utility model discloses a revolution formula vibration exciter, required vibration acceleration is little, only need 4 ~ 6g just can ensure the good vibration effect of mixture, vibration exciter casing and enhancement blade structure satisfy the axial symmetry simultaneously, can realize dynamic balance according to the mechanics principle strictly, thereby at vibration exciter during operation, only connect the casing on the eccentric shaft along with the eccentric shaft rotation and the forced vibration, the eccentric shaft that satisfies the dynamic balance condition itself does not vibrate, the harmful effects of vibration to other spare parts of machine has been eliminated betterly, the reliability and the life of machine have been improved.

Furthermore, an eccentric block arranged in the vibration exciter only needs to be arranged at a reasonable position after dynamic balance calculation, so that an ideal balance effect can be achieved, adverse effects on the machine body caused by shaft vibration are eliminated, and the vibration exciter is simple and convenient to process and install.

Furthermore, in the stirring device, the small stirring arm is lower in height, extends backwards at a large angle, is bent forwards at the bottom side, is good in rigidity, can disperse and throw up materials by the bottom scraper, has transverse sliding and up-and-down rolling actions, and is provided with two planetary carriers which are arranged in a 90-degree crossed manner, so that the extruding and kneading effects on the mixed materials can be formed, and the materials are fully and uniformly stirred. The blades of the stirring device can be conveniently disassembled and assembled, and the manufacturing and maintenance cost is lower.

Further, discharge apparatus belongs to the rotatory formula of unloading of hydraulic drive and unloads the bin gate, has avoided the slope to unload the drawback that the space requirement is big, and discharge apparatus disposes in the stirring barrel periphery, and the operating torque who provides is big, and the steady reliability of operation is high.

Furthermore, the height-to-diameter ratio of the stirring cylinder body can be calculated in a design mode, the smallest structural size can be used while the stirring cylinder body has the relatively largest feeding volume, the manufacturing cost can be reduced, the shape is proper, and the stirring quality is improved.

In conclusion, the transmission system is simple in structure, the stirring system is high in rigidity and has an extruding and kneading effect, the vibration system can ensure dynamic balance and a large vibration action range, the vibration stirring quality and efficiency are good, and the working stability and reliability are easy to ensure.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the transmission system according to the present invention;

FIG. 3 is a schematic structural diagram of the transmission system of the present invention;

FIG. 4 is a schematic structural view of the stirring device of the present invention;

fig. 5 is a schematic structural view of the vibration exciter device of the present invention;

fig. 6 is a top view of the vibration exciter apparatus of the present invention;

fig. 7 is a schematic structural view of the discharging device of the present invention;

fig. 8 is the installation position schematic diagram of the stirring device and the vibration exciter of the present invention.

Wherein: 1. a stirring driving motor; 2. a vibration driving motor; 3. a transmission device; 3-1-1, stirring and driving a power input shaft; 3-1-2, stirring and driving a gear; 3-2-1, slewing bearing outer ring; 3-2-2. inner ring of rotary support; 3-2-3. sleeve; 3-3-1. a vibration exciter power input shaft; 3-3-2. bearings; 3-3-3. a vibration exciter power transmission planet gear; 3-3-4. a drum gear coupling; 3-3-5, sun gear; 3-4-1. a vibration exciter driving device power output shaft; 3-4-2. a diaphragm coupling; 3-4-3. a vibration exciter power transmission shaft; 3-4-4. sun gear; 3-5-1. a male swivel housing; 3-5-2. a stirring shaft bearing; 3-5-3, stirring and driving a planet wheel; 3-5-4, planetary rotating shaft; 4. a stirring device; 4-1-1, a stirring arm; 4-1-2 connecting frames; 4-2-1, connecting seat of stirring blade; 4-2-2. a planetary stirring blade; 5-1-1, vibrating the transmission shaft; 5-2-1. a first support bearing; 5-2-2. a first eccentric bearing seat; 5-2-3. a first balancing eccentric block; 5-2-4, vibration exciter shell; 5-2-5. a second support bearing; 5-2-6, a second eccentric bearing seat; 5-2-7. a second balancing eccentric block; 5-2-8, strengthening the blade; 6. a mixing cylinder; 6-1-1, powder material inlet; 6-1-2, an aggregate inlet; 6-1-3, water inlet; 6-1-4, a cylinder cover; 6-2-1. a hydraulic motor; 6-2-2. hydraulic platform; 6-2-3, a discharging hydraulic cylinder; 6-3-1. sealing strip; 6-3-2, rotating a discharge door; 7. a support; 8. a planetary reducer; 9. wear-resistant lining plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a concrete mixing device, concrete aggregate, powder, additive and moisture do not drop into in the churn through each inlet pipe/mouth of churn cover top. The power device drives the planetary stirring device and the vibrating device through the transmission device respectively, the planetary stirring device revolves around the geometric center of the stirring cylinder and rotates in the stirring cylinder, and the planetary stirring blades rotate around the planetary rotating shaft to stir materials. When the vibration exciter rotates in a revolution mode, the vibration transmission shaft in the vibration exciter drives the shell to vibrate forcibly, and strong vibration energy is transmitted to the mixture. The side scraping mechanism scrapes off concrete adhered to the inner wall of the cylinder by using a side scraper attached to a side scraping arm by revolution. The materials are subjected to forced stirring action such as shearing and extrusion of the planetary stirring blades and the mechanical vibration action of the vibration exciter in the stirring cylinder, powder cohesive masses in the mixture are damaged, and internal friction and cohesive force among particles are reduced rapidly in a short time, so that the concrete is rapidly and uniformly distributed on macro and micro, and finally, the fan-shaped discharge door at the bottom of the stirring cylinder is opened for discharging.

Referring to fig. 1 and 2, the concrete mixing device of the present invention includes a mixing driving motor 1, a vibration driving motor 2, a transmission device 3, a mixing device 4, a vibration exciter 5, a discharging device 6-3, a mixing cylinder 6 and a support 7.

The stirring driving motors 1 comprise two stirring driving motors 1 which are arranged outside the stirring barrel 6 at intervals, the stirring device 4 and the vibration exciter 5 are arranged inside the stirring barrel 6 and are respectively connected with one stirring driving motor 1 through a transmission device 3 and a planetary reducer 8, the vibration exciter 5 is meshed with a sun wheel 3-4-4 arranged on a vibration driving motor 2 through a vibration exciter power transmission planetary wheel 3-3-3, the vibration driving motor 2 is arranged between the two stirring driving motors 1, the inner wall and the bottom of the stirring barrel 6 are provided with wear-resistant lining plates 9, supports 7 are arranged on two sides of the bottom of the stirring barrel 6 and are used for supporting, a hydraulic system and an electric system are arranged outside the stirring barrel 6 and are used for controlling the stirring and unloading functions of a host machine, the stirring device 4 and the vibration exciter 5 are arranged in concrete in the stirring barrel 6 and directly transmit stirring and vibration to a mixture of the concrete, and the full effect on the concrete mixture in the space of the whole stirring cylinder body 6 is realized along with the revolution of the vibration exciter 5, and the discharging device 6-3 is arranged at the bottom of the stirring cylinder body 6.

Referring to fig. 3, the stirring cylinder 6 is provided with a cylinder cover 6-1-4, and in order to achieve the comprehensive effects of reducing the manufacturing cost, proper shape and high stirring quality, the ratio of the height to the diameter of the cylindrical cylinder is preferably 0.3-0.6; the upper part of the cylinder cover 6-1-4 is provided with a stirring driving motor 1 and a planetary reducer 8 connected with the stirring driving motor 1; the barrel cover 6-1-4 is provided with an observation window, a powder material inlet 6-1-1, a water inlet 6-1-3 and an aggregate material inlet 6-1-2; the inner side of the upper part of the cylinder cover 6-1-4 is provided with a cylinder sleeve 3-2-3 for mounting a slewing bearing; the outer ring 3-2-1 of the slewing bearing is provided with a bolt connected with a male rotating body, and the outer ring 3-2-1 of the slewing bearing is provided with teeth and meshed with a stirring driving gear 3-1-2 on an output shaft of a planetary reducer 8; a planetary rotating shaft 3-5-4 and a vibration exciter power input shaft 3-3-1 are arranged in the male rotating body shell 3-5-1 and are respectively connected with a stirring device 4 and a vibration exciter 5.

The bottom of the sleeve 3-2-3 is provided with a sun gear 3-3-5 to realize the autorotation of the planetary stirring device, and the sleeve 3-2-3 is internally provided with a transmission device 3 to provide power for a vibration exciter 5; the bottom of the male swivel housing 3-5-1 is provided with a side scraper device.

Two stirring driving motors 1 are symmetrically arranged about the center of the cylinder cover 6-1-4 and used for driving planetary stirring transmission, a vibration driving motor 2 is arranged in the center of the cylinder cover 6-1-4 and used for driving a transmission device 3, and the stirring device 4 is connected with a planetary speed reducer 8 and is fixed on the cylinder cover 6-1-4 through a flange; the vibration driving motor 2 is connected with the upper part of the cylinder cover 6-1-4 through a flange.

The transmission device 3 comprises a planetary stirring transmission device and a vibration transmission device and is arranged on the lower portion of the cylinder cover.

The planetary stirring transmission device adopts gear transmission, a stirring driving power input shaft 3-1-1 extending downwards from a planetary speed reducer 8 is used as a revolution driving device, a gear 3-1-2 on the shaft drives a slewing bearing outer ring 3-2-1 to rotate, and the rotating speed is 10-25 r/min; the outer ring 3-2-1 of the slewing bearing is connected with a lower male slewing body shell 3-5-1 to rotate through a bolt; the revolution body is used as a planet carrier of planet motion to input rotating speed, a planet rotating shaft 3-5-4 in the center of the planet stirring device is provided with a stirring transmission planet wheel 3-5-3, the stirring transmission planet wheel 3-3-3 rotates around a sun wheel 3-4-4 of which the center is fixed, and the stirring transmission planet wheel 3-5-3 drives the planet rotating shaft 3-5-4 to generate autorotation motion through meshing transmission, wherein the rotating speed is 1500-3000 r/min.

The vibration driving motor 2 adopts gear transmission, a power output shaft 3-4-1 of a vibration exciter driving device of the vibration driving motor 2 is connected with a vibration exciter power transmission shaft 3-4-3 through a coupler 3-4-2 to enable the vibration exciter power transmission shaft to rotate at high speed, the vibration exciter power transmission shaft 3-4-3 downwards passes through a sleeve 3-2-3 in the male rotating body and is arranged on a shell 3-5-1 of the male rotating body through a bearing, a sun wheel 3-4-4 is arranged at the lower part of the vibration exciter power transmission shaft 3-4-3 and revolves along with the vibration exciter power transmission shaft 3-4-3, a vibration exciter power transmission planet wheel 3-3-3 is arranged on a vibration exciter power input shaft 3-3-1 and is meshed with the sun wheel 3-4-4 arranged at the lower, the power input shaft 3-3-1 of the vibration exciter generates high-speed autorotation through meshing transmission and is transmitted to a vibration exciter 5 arranged below through a drum gear coupling 3-3-4.

Referring to fig. 4, the stirring device 4 is installed at the lower part of the planetary stirring transmission device, each planetary stirring device is provided with three stirring arms 4-1-1, arranged at intervals of 120 degrees and installed on the connecting frame 4-1-2 through connecting pieces; the planet stirring blade 4-2-2 is arranged at the lower end of the stirring arm and can be replaced after being worn; preferably, the rotating speed of the planet shaft is 30-45 r/min.

Referring to fig. 5 and 6, the vibration exciter 5 includes a vibration transmission shaft 5-1-1, a vibration exciter housing 5-2-4, a first support bearing 5-2-1, a second support bearing 5-2-5, a first eccentric bearing seat 5-2-2, a second eccentric bearing seat 5-2-6, a first balancing eccentric mass 5-2-3, a second balancing eccentric mass 5-2-7, and a reinforcing blade 5-2-8.

The vibration exciter shell 5-2-4 is arranged on the first eccentric bearing seat 5-2-2 and the second eccentric bearing seat 5-2-6 through the first supporting bearing 5-2-1 and the second supporting bearing 5-2-5.

The eccentricity e of the first eccentric bearing seat 5-2-2 and the second eccentric bearing seat 5-2-6 is 0.5-2.0 mm.

Four reinforcing blades 5-2-8 are fixed on the outer surface of the cylindrical vibration exciter shell 5-2-4 through bolts, and the four reinforcing blades 5-2-8 are symmetrical about the rotation axis of the vibration exciter shell 5-2-4, and are preferably distributed at intervals of 90 degrees.

In order to ensure the action range and avoid structural interference, the rotating diameter of the reinforcing blades 5-2-8 is preferably 0.5-1.0 time of that of the planetary stirring blades.

The first balance eccentric block 5-2-3 and the second balance eccentric block 5-2-7 are fixed at two sides of the first support bearing 5-2-1 and the second support bearing 5-2-5 at the lower part of the vibration transmission shaft 5-1-1, the eccentric direction is opposite to the eccentric direction of the first eccentric bearing seat 5-2-2 and the second eccentric bearing seat 5-2-6, and the quality of the balance eccentric block 5-2-3 and the second balance eccentric block 5-2-7 can balance the inertia force and the inertia moment couple which are generated by the first balance eccentric block 5-2-3 and the second balance eccentric block 5-2-7 when the vibration transmission shaft 5-1-1 rotates, the vibration exciter shell 5-2-4, the first support bearing 5-2-1 and the second support bearing 5-2-5, The first eccentric bearing seat 5-2-2, the second eccentric bearing seat 5-2-6 and the reinforcing blade 5-2-8 ensure that only the vibration exciter shell 5-2-4 and the reinforcing blade 5-2-8 generate forced vibration along with the high-speed rotation of the vibration transmission shaft 5-1-1 during working, the vibration transmission shaft 5-1-1 meeting dynamic balance does not vibrate, and therefore the vibration is prevented from bringing adverse effects to other parts including a power and transmission mechanism.

The vibration exciter is arranged in the concrete, the vibration of the vibration exciter shell 5-2-4 is directly transmitted to the mixture, and the full effect on the concrete mixture in the whole mixing drum space is realized along with the revolution of the vibration exciter 5.

The vibration exciter shell 5-2-4 is provided with a reinforcing blade connected with a bolt, so that the contact area between the vibration exciter shell and the mixed materials can be increased to strengthen the vibration stirring effect, and the vibration exciter shell can be conveniently and quickly replaced after being worn.

Referring to fig. 7, the discharging device 6-3 includes a hydraulic motor 6-2-1, a hydraulic platform 6-2-2, a discharging hydraulic cylinder 6-2-3, a supporting member, a sealing strip 6-3-1, and a rotary discharging door 6-3-2.

The supporting piece is arranged on the outer wall of the stirring cylinder body 6, and the hydraulic motor 6-2-1 and the hydraulic platform 6-2-2 are arranged on the supporting piece.

The discharging hydraulic cylinder 6-2-3 pushes the rotary discharging door 6-3-2 to rotate around the rotating shaft so as to realize the opening and closing of the discharging opening.

The sealing strips 6-3-1 are arranged on the binding surface of the bottom plate of the mixing barrel and the discharge door, the binding surface of the bottom liner plate and the lining plate of the discharge door, and the binding surface of the fan-shaped discharge door and the round barrel bottom.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (10)

1. The concrete stirring device is characterized by comprising two stirring driving motors (1) and one vibration driving motor (2) which are respectively arranged on a stirring barrel body (6), wherein the stirring driving motors (1) and the vibration driving motors (2) are respectively connected with a stirring device (4) and a vibration exciter (5) which are arranged in the stirring barrel body (6) through a transmission device (3), the vibration exciter (5) is meshed with a sun wheel (3-4-4) arranged on the vibration driving motor (2) through a vibration exciter power transmission planet wheel (3-3-3), a discharging device (6-3) is arranged at the bottom of the stirring barrel body (6), and the discharging device (6-3) is connected with a hydraulic system and an electric system which are arranged outside the stirring barrel body (6).

2. The concrete mixing device according to claim 1, wherein a cylinder cover (6-1-4) is arranged on the mixing cylinder (6), the upper parts of the cylinder covers (6-1-4) are respectively connected with the corresponding mixing driving motors (1) through planetary reducers (8), and sleeves (3-2-3) for mounting rotary supports are arranged on the inner sides of the upper parts of the cylinder covers (6-1-4); the slewing bearing comprises a slewing bearing outer ring (3-2-1) and a slewing bearing inner ring (3-2-2), the sleeve (3-2-3) is connected with the slewing bearing outer ring (3-2-1) through the slewing bearing inner ring (3-2-2), the slewing bearing outer ring (3-2-1) is connected with a male swivel shell (3-5-1) through a bolt, and is meshed with a stirring driving gear (3-1-2) on an output shaft of a planetary speed reducer (8) through teeth; a planetary rotating shaft (3-5-4) and a vibration exciter power input shaft (3-3-1) are arranged in the male rotating body shell (3-5-1) and are respectively connected with a stirring device (4) and a vibration exciter (5).

3. Concrete mixing device according to claim 2, characterised in that the bottom of the sleeve (3-2-3) is provided with a male swivel housing (3-5-1) and a sun wheel (3-3-5) for revolution, and that the bottom of the male swivel housing (3-5-1) is provided with a side scraper device.

4. Concrete mixing apparatus according to claim 2, characterized in that the planetary shafts (3-5-4) are provided with mixing transmission planetary gears (3-5-3), and the exciter power input shaft (3-3-1) is provided with exciter power transmission planetary gears (3-3-3).

5. The concrete mixing device according to claim 2, wherein the exciter drive power output shaft (3-4-1) of the vibration drive motor (2) is connected with the exciter power transmission shaft (3-4-3) through a diaphragm coupling (3-4-2), the exciter power transmission shaft (3-4-3) passes through a sleeve (3-2-3) and is arranged on the male rotator housing (3-5-1), the lower end of the exciter power transmission shaft is connected with the sun gear (3-4-4), and the exciter (5) is connected through a drum gear coupling (3-3-4) arranged at the lower end of the exciter power input shaft (3-3-1).

6. The concrete mixing device according to claim 1, wherein the vibration exciter (5) comprises a vibration transmission shaft (5-1-1), the vibration transmission shaft (5-1-1) is sleeved with a first eccentric bearing seat (5-2-2) and a second eccentric bearing seat (5-2-6), the vibration exciter housing (5-2-4) is mounted on the first eccentric bearing seat (5-2-2) and the second eccentric bearing seat (5-2-6) through a first supporting bearing (5-2-1) and a second supporting bearing (5-2-5), the outer surface of the vibration exciter housing (5-2-4) is provided with four reinforcing blades (5-2-8), and the four reinforcing blades (5-2-8) are symmetrically distributed about a rotation axis of the vibration exciter housing (5-2-4) .

7. The concrete mixing device according to claim 6, wherein the first supporting bearing (5-2-1) and the second supporting bearing (5-2-5) are correspondingly provided with a first balancing eccentric block (5-2-3) and a second balancing eccentric block (5-2-7) at two sides, the eccentric directions of the first balancing eccentric block (5-2-3) and the second balancing eccentric block (5-2-7) are opposite to the eccentric directions of the first eccentric bearing seat (5-2-2) and the second eccentric bearing seat (5-2-6), and the vibration exciter housing (5-2-4), the first supporting bearing (5-2-1), the second supporting bearing (5-2-5), the first eccentric bearing seat (5-2-2) and the second eccentric bearing seat (5-2-2), The second eccentric bearing seat (5-2-6) and the reinforcing blade (5-2-8) are eccentrically arranged on the vibration transmission shaft (5-1-1).

8. The concrete mixing device according to claim 1, wherein the mixing device (4) comprises three mixing arms (4-1-1) arranged at intervals, and the three mixing arms (4-1-1) are arranged on the connecting frame (4-1-2); the planet stirring blade (4-2-2) is arranged at the lower end of the stirring arm (4-1-1) through the stirring blade connecting seat (4-2-1).

9. The concrete mixer according to claim 1, wherein the discharge device (6-3) comprises a support member mounted on the outer wall of the mixer drum (6), the support member is provided with a hydraulic motor (6-2-1) and a hydraulic station (6-2-2), and the hydraulic motor (6-2-1) is connected with the rotary discharge door (6-3-2) at the bottom of the mixer drum (6) through the discharge hydraulic cylinder (6-2-3) of the hydraulic station (6-2-2).

10. The concrete mixing device according to claim 1, characterized in that the mixing drum (6) is provided with wear resistant lining plates (9) both on the inner wall and on the bottom.

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