CN107053484B

CN107053484B - Integrated concrete laboratory mixing plant

Info

Publication number: CN107053484B
Application number: CN201710263635.4A
Authority: CN
Inventors: 王吉连; 安凯涛; 陈自云; 李相伟
Original assignee: Shantui Janeoo Machinery Co Ltd
Current assignee: Shantui Janeoo Machinery Co Ltd
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2023-06-20
Anticipated expiration: 2037-04-21
Also published as: CN107053484A

Abstract

The invention discloses an integrated concrete laboratory stirring station which comprises an upper box body and a lower box body, wherein a powder unit and an aggregate unit are arranged in the upper box body, a material lifting unit is arranged at the top of the upper box body, and a liquid material unit, a control unit and a stirrer are arranged in the lower box body. When the stirring machine works, different powder materials, aggregate materials and liquid materials are controlled by the control unit to be added into the stirring machine according to a certain proportion and category, and the slurry is stirred according to the requirement. The laboratory mixing plant can realize automatic production, reduce labor intensity, save labor cost, obviously improve concrete trial-mix efficiency, greatly increase the number of trial-mix samples, ensure and improve the accuracy and precision degree of concrete trial-mix, and facilitate the design of optimal mix proportion.

Description

Integrated concrete laboratory mixing plant

Technical Field

The invention relates to the technical field of concrete processing, in particular to an integrated concrete laboratory mixing station.

Background

Building scientific research, detection centers, universities and colleges, concrete members and construction unit laboratories often conduct experimental research on formulations. The traditional concrete mixing proportion experiment adopts the modes of manual metering, feeding and stirring, which is time-consuming and labor-consuming and has a certain gap between the stirring effect and the stirring effect of the machine. The field workload is large, laboratory configuration personnel are more, a large amount of manpower and financial resources are wasted, the concrete trial-mix efficiency is low, the sample quantity is small, and the accuracy of the mix proportion cannot be ensured. In addition, the manual metering is adopted, the process is uncontrollable, and the metering precision cannot be ensured.

Disclosure of Invention

The invention provides the integrated concrete laboratory mixing station for solving the problems, which not only can realize automatic production, reduce labor intensity and labor cost, but also can obviously improve concrete trial-mix efficiency.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an integrated concrete laboratory stirring station, includes upper portion box and lower part box, upper portion box in be provided with powder unit and aggregate unit, the top of upper portion box is provided with the material and promotes the unit, lower part box in be provided with liquid material unit, control unit and mixer.

Further, the powder unit comprises a plurality of powder bins, and the powder bins are respectively connected with the powder metering scale through screw conveyors.

Further, the aggregate unit include a plurality of aggregate bin, every the lower extreme of aggregate bin is provided with first belt conveyor respectively, first belt conveyor's below be provided with the aggregate weighing scale, the below of aggregate weighing scale is provided with the second belt conveyor.

Further, the material lifting unit comprises a stand column and a cross beam, the stand column and the cross beam form a door shape together, the cross beam is provided with a travelling crane, the stand column and the upper box body and the stand column and the cross beam are all connected in a hinged mode, an inclined strut is arranged between the stand column and the upper box body, and two ends of the inclined strut are hinged with the stand column and the upper box body respectively.

Further, the liquid material unit comprises a liquid material bin and a liquid material metering scale arranged below the liquid material bin, and the liquid material metering scale is communicated with the stirrer through a pipeline.

Further, the mixer includes the stirring box, the stirring box in be provided with two (mixing) shafts, and two (mixing) shafts respectively through first bearing assembly with the stirring box rotate and be connected, the (mixing) shaft on be provided with the gear respectively, and two the gear mesh mutually, the (mixing) shaft on be provided with the stirring arm that is the duplex arrangement, one side of stirring box is fixed and is provided with driving motor, just driving motor pass through drive mechanism and one of them (mixing) shaft link to each other, the bottom of stirring box still is provided with shedding mechanism.

Further, first bearing assembly include the bearing mounting panel and fixedly set up in bearing mounting panel on take a seat bearing, bearing mounting panel and stirring box between be provided with the gasket, the (mixing) shaft on be located take the inboard cover of seat bearing be equipped with (mixing) shaft fixed connection's second sealing washer, the outside cover of second sealing washer be equipped with bearing mounting panel fixed connection's first sealing washer, the bearing mounting panel on be provided with the oil filler point, first sealing washer on be provided with the oil penetration hole that is linked together with the oil filler point.

Further, discharge mechanism include first pivot and second pivot, first pivot include first axle section and second axle section, the second pivot include third axle section and fourth axle section, first, the triaxial section respectively through second bearing assembly with the stirring box rotate and be connected, second, the fourth axle section on fixedly respectively be provided with and be sectorial riser, two be provided with between the riser and be curved baffle, first axle section and second axle section between to and be eccentric setting between third axle section and the fourth axle section, just first axle section and the coaxial arrangement of third axle section.

Further, a dust removing device is arranged in the upper box body.

The beneficial effects of the invention are as follows:

1. the laboratory mixing plant can realize automated production, reduce labor intensity, save labor cost, obviously improve concrete trial-mix efficiency, greatly increase the number of trial-mix samples, ensure and improve the accuracy and precision degree of concrete trial-mix, and facilitate the design of optimal mix proportion.

2. The laboratory mixing plant can integrate concrete trial equipment to form an assembly workshop, and is convenient to install, detach and transport.

3. The laboratory stirring station integrates the systems of material storage, conveying, metering, stirring and the like, automatically operates, automatically stores information, has controllable process, and solves the problems of the traditional manual mode for the mixing ratio test.

4. The mixer adopts the oil-free shaft section for sealing, and the grease is not required to be filled in the mixing process to realize sealing, so that the grease is prevented from entering a concrete sample, and the accuracy of experimental data is ensured.

5. The discharging mechanism of the stirrer adopts an eccentric shaft, so that the phenomenon of material clamping during opening and closing of the door is effectively avoided.

Drawings

FIG. 1 is a front view of the present invention with the dust extraction device removed;

FIG. 2 is a left side view of the present invention with the powder unit removed;

FIG. 3 is an external structural view of the present invention;

FIG. 4 is a schematic view of the handling process according to the present invention;

FIG. 5 is a front view of the blender;

FIG. 6 is a top view of the blender;

FIG. 7 is an enlarged schematic view of the portion A of FIG. 5;

FIG. 8 is an enlarged schematic view of the portion B of FIG. 6;

FIG. 9 is a schematic view of the structure of the connection of the stirring shaft and the stirring box;

FIG. 10 is a schematic perspective view of the discharge mechanism;

FIG. 11 is a front view of the discharge mechanism;

FIG. 12 is a first diagram of the operating state of the unloading mechanism;

FIG. 13 is a second diagram of the working state of the unloading mechanism;

FIG. 14 is a third operational state diagram of the discharge mechanism;

FIG. 15 is a fourth diagram of the operating state of the discharge mechanism;

drawing of the figure in (a): 1-upper box, 2-lower box, 31-powder bin, 32-screw conveyor, 33-powder metering scale, 41-aggregate bin, 42-first belt conveyor, 43-aggregate metering scale, 44-second belt conveyor, 51-liquid material bin, 52-liquid material metering scale, 61-column, 62-beam, 63-travelling crane, 64-diagonal bracing, 7-control unit, 8-stirrer, 81-stirring box, 82-stirring shaft, 821-gear, 822-stirring arm, 83-first bearing assembly, 831-seat bearing, 832-bearing mounting plate, 8321-oil filler hole, 833-gasket, 834-first sealing ring, 8341-oil penetration hole, 835-second sealing ring, 84-driving motor, 85-discharging mechanism, 851-first shaft, 8511-first shaft section, 8512-second shaft section, 852-second shaft section, 8521-third shaft section, 8522-fourth shaft section, 853-vertical plate, 854-baffle, 855-swing rod, 7-856-positioning pin, 7-9-positioning sleeve, dust removing device.

Detailed Description

As shown in fig. 1, an integrated concrete laboratory mixing station comprises an upper box body 1 and a lower box body 2, wherein a powder unit and an aggregate unit are arranged in the upper box body 1, a material lifting unit is arranged at the top of the upper box body 1, and a liquid material unit, a control unit 7 and a mixer 8 are arranged in the lower box body 2.

As shown in fig. 1, the powder unit includes a powder hopper 31, a screw conveyor 32, and a powder metering scale 33. Because a plurality of powder materials are needed in the proportioning experiment, the number of the powder material bins 31 is a plurality, the lower ends of the powder material bins 31 are provided with pneumatic valves for controlling the opening and the closing, and the powder material bins 31 are connected with the powder material metering scale 33 through the screw conveyor 32.

As shown in fig. 1, the aggregate unit includes a plurality of aggregate bins 41, and a first belt conveyor 42 for conveying aggregate is respectively disposed at the lower end of each aggregate bin 41. An aggregate weighing scale 43 for weighing the aggregate is arranged below the first belt conveyor 42, and a second belt conveyor 44 for conveying the aggregate is arranged below the aggregate weighing scale 43. When the aggregate feeding device works, the first belt conveyor 42 below the aggregate bin 41 corresponding to the aggregate to be added runs, the aggregate in the aggregate bin 41 is taken out along with the rotation of the belt and conveyed to the aggregate metering scale 43, meanwhile, the aggregate metering scale 43 weighs the aggregate, when the set weight is reached, the first belt conveyor 42 stops rotating, and the aggregate bin 41 corresponding to the first belt conveyor 42 stops discharging due to the stop of the rotation of the first belt conveyor 42. Then the control unit 7 controls the first belt conveyor 42 below the aggregate bin 41 for holding the next aggregate to rotate, and the aggregate in the aggregate bin 41 is conveyed into the aggregate weighing scale 43, and the aggregate is weighed by addition, and the like until all the aggregates are weighed, and then the second belt conveyor 44 below the aggregate weighing scale 43 rotates to drive the weighed aggregates to enter the stirrer 8.

As shown in fig. 1, a first through hole for communicating the powder metering scale 33 with the mixer 8 and a second through hole for communicating the aggregate metering scale 43 with the mixer 8 are respectively arranged on the bottom plate of the upper box 1 and the top plate of the lower box 2.

As shown in fig. 1 and 2, the material lifting unit includes a "door" shaped frame respectively disposed at the left and right ends of the upper case 1, and the frame includes upright posts 61 respectively disposed at the front and rear sides of the upper case 1 and a cross beam 62 disposed between the two upright posts 61. A trolley 63 is fixedly arranged below the cross beam 62. The travelling crane 63 is only required to be a travelling crane 63 commonly used in the prior art, and is not described herein.

Further, for convenience in transportation, as shown in fig. 2 and 3, the upright post 61 and the upper box 1, and the upright post 61 and the cross beam 62 are all connected by a hinge, a diagonal brace 64 is disposed between the upright post 61 and the upper box 1, and two ends of the diagonal brace 64 are hinged with the upright post 61 and the upper box 1 respectively. In this way, the material lifting unit can be folded as shown in fig. 3 and 4 during transportation, so that the limitation of the height is avoided.

As shown in fig. 2, the liquid material unit includes a liquid material bin 51 and a liquid material metering scale 52 for weighing the liquid material, the liquid material metering scale 52 is communicated with the mixer 8 through a pipeline, and a pneumatic valve for controlling opening and closing is arranged at the lower end of the liquid material metering scale 52.

Further, in order to save energy, as shown in fig. 2, the liquid material bin 51 is disposed above the liquid material metering scale 52, so that the liquid material can enter the liquid material metering scale 52 in a self-flowing manner, and a pump is not required to make the liquid material passively flow into the liquid material metering scale 52. As a specific embodiment, the liquid material bin 51 in this embodiment is disposed in the upper case 1, and the liquid material meter 52 is disposed in the lower case 2. Therefore, the space can be fully and reasonably utilized, and the flow speed of the liquid material can be improved by increasing the height difference between the liquid material bin 51 and the liquid material metering scale 52, so that the working efficiency is improved.

As shown in fig. 5 and 6, the stirrer 8 includes a stirring box 81, two stirring shafts 82 are disposed in the stirring box 81, and the two stirring shafts 82 are respectively connected with the stirring box 81 in a rotating manner through a first bearing assembly 83. The part of the stirring shaft 82 protruding outside the stirring box 81 is provided with gears 821, and the two gears 821 are meshed. The stirring shaft 82 is provided with stirring arms 822 which are arranged in a double spiral manner. A driving motor 84 is fixedly arranged on one side of the stirring box 81, and the driving motor 84 is connected with one of the two stirring shafts 82 through a transmission mechanism. In this embodiment, the transmission mechanism adopts chain transmission. The bottom of the stirring box 81 is also provided with a discharging mechanism 85 for discharging.

Further, since the conventional mixer 8 is generally sealed by continuously injecting oil to the shaft end in order to prevent slurry from being leaked during mixing, although slurry leakage can be avoided, grease can enter the mixing tank 81 due to continuous oil injection and finally be mixed into experimental slurry, resulting in inaccurate experimental results.

To solve this problem, as shown in fig. 10, the first bearing assembly 83 includes a bearing mounting plate 832 fixedly disposed on the stirring tank 81, and a spacer 833 is disposed between the bearing mounting plate 832 and the stirring tank 81. The stirring shaft 82 is sleeved with a bearing 831 with a seat, and the bearing 831 with a seat is fixedly connected with the bearing mounting plate 832. The stirring shaft 82 is provided with a second sealing ring 835 in the inner side of the bearing 831, and a first sealing ring 834 in the outer side of the second sealing ring 835, wherein the second sealing ring 835 is fixedly connected with the stirring shaft 82, and the first sealing ring 834 is fixedly connected with the bearing mounting plate 832. In operation, the first seal 834 and the second seal 835 are in a relatively rotational motion relationship. The bearing mounting plate 832 is provided with a radial oil filling hole 8321, and the first sealing ring 834 is provided with an oil seepage hole 8341 communicated with the oil filling hole 8321. During operation, lubricating grease is injected into the first opposite oil injection holes 8321, then the stirrer 8 idles until no oil seeps into the stirring box 81, and then the grease seeping into the box is cleaned up, so that a test can be performed, and the slurry is stirred.

As shown in fig. 11 and 12, the discharging mechanism 85 includes a first shaft 851 and a second shaft 852, the first shaft 851 includes a first shaft section 8511 and a second shaft section 8512, and the second shaft 852 includes a third shaft section 8521 and a fourth shaft section 8522. Wherein the first shaft section 8511 and the third shaft section 8521 are respectively and rotatably connected with the stirring box 81 through second bearing assemblies, fan-shaped vertical plates 853 are respectively and fixedly arranged on the second shaft section 8512 and the fourth shaft section 8522, and a baffle plate 854 which is arc-shaped is arranged between the two vertical plates 853. The first shaft section 8511 and the second shaft section 8512, and the third shaft section 8521 and the fourth shaft section 8522 are both arranged eccentrically, and the first shaft section 8511 and the third shaft section 8521 are coaxially arranged. As shown in fig. 13, 14 and 15, when the baffle 854 is rotated, the gap between the baffle 854 and the stirring box 81 is gradually increased or decreased, so that the material blocking phenomenon can be well prevented in the process of discharging. As shown in fig. 12, the third shaft section 8521 is further fixedly provided with a swing rod 855, as shown in fig. 7 and 8, a positioning sleeve 857 is disposed on one side of the stirring tank 81, which is located on the swing rod 855, and a positioning pin 856 for limiting the swing rod 855 to rotate anticlockwise is inserted into the positioning sleeve 857. This design is mainly because, as shown in fig. 15, if the rotation shaft rotates clockwise, it interferes with the stirring box 81 due to the limitation of the eccentric structure, so that the rotation shaft does not rotate clockwise but may rotate counterclockwise when the baffle 854 is just in the closed state, and therefore, the positioning pin 856 needs to be provided on the stirring box 81 to limit the rotation in the counterclockwise direction. Thus, when the unloading is needed, the positioning pin 856 is pulled out, and the swing rod 855 is rotated anticlockwise.

Further, to facilitate adjusting the height of the mixer 8, as shown in fig. 8, a handle 862 is provided on the stud 862.

Further, as shown in fig. 2, in order to prevent dust from affecting the experimental environment, the dust removing device 10 is disposed in the upper box 1, and the dust removing device 10 in the prior art is only required to be used as the dust removing device 10, which is not described herein.

Further, an air pump 9 for controlling each pneumatic valve is also arranged in the lower box body 2.

Further, in order to facilitate the up and down of the staff, the left ends of the upper box body 1 and the lower box body 2 are respectively provided with stairs.

Claims

1. An integrated concrete laboratory mixing plant which characterized in that: the device comprises an upper box body and a lower box body, wherein a powder unit and an aggregate unit are arranged in the upper box body, a material lifting unit is arranged at the top of the upper box body, and a liquid material unit, a control unit and a stirrer are arranged in the lower box body;

the stirring machine comprises a stirring box body, wherein two stirring shafts are arranged in the stirring box body and are respectively connected with the stirring box body in a rotating way through a first bearing assembly, gears are respectively arranged on the stirring shafts and meshed with each other, stirring arms which are arranged in a double-spiral way are arranged on the stirring shafts, a driving motor is fixedly arranged on one side of the stirring box body, the driving motor is connected with one stirring shaft through a transmission mechanism, and a discharging mechanism is further arranged at the bottom of the stirring box body;

the first bearing assembly comprises a bearing mounting plate and a bearing with a seat, wherein the bearing with a seat is fixedly arranged on the bearing mounting plate, a gasket is arranged between the bearing mounting plate and the stirring box body, a second sealing ring fixedly connected with the stirring shaft is sleeved on the stirring shaft, a first sealing ring fixedly connected with the bearing mounting plate is sleeved on the outer side of the second sealing ring, an oil filling hole is formed in the bearing mounting plate, and an oil seepage hole communicated with the oil filling hole is formed in the first sealing ring;

the discharging mechanism comprises a first rotating shaft and a second rotating shaft, the first rotating shaft comprises a first shaft section and a second shaft section, the second rotating shaft comprises a third shaft section and a fourth shaft section, the first shaft section and the third shaft section are respectively connected with the stirring box body in a rotating mode through a second bearing assembly, a fan-shaped vertical plate is fixedly arranged on the second shaft section and the fourth shaft section respectively, a baffle plate which is arc-shaped is arranged between the two vertical plates, and the first shaft section and the second shaft section and the third shaft section and the fourth shaft section are eccentrically arranged.

2. An integrated concrete laboratory mixing plant according to claim 1, wherein: the powder unit comprises a plurality of powder bins, and the powder bins are respectively connected with the powder metering scale through screw conveyors.

3. An integrated concrete laboratory mixing plant according to claim 1, wherein: the aggregate unit comprises a plurality of aggregate bins, a first belt conveyor is arranged at the lower end of each aggregate bin, an aggregate metering scale is arranged below the first belt conveyor, and a second belt conveyor is arranged below the aggregate metering scale.

4. An integrated concrete laboratory mixing plant according to claim 1, wherein: the material lifting unit comprises a stand column and a cross beam, wherein the stand column and the cross beam form a door shape together, the cross beam is provided with a travelling crane, the stand column and the upper box body are connected in a hinged mode, an inclined strut is arranged between the stand column and the upper box body, and two ends of the inclined strut are hinged with the stand column and the upper box body respectively.

5. An integrated concrete laboratory mixing plant according to claim 1, wherein: the liquid material unit comprises a liquid material bin and a liquid material metering scale arranged below the liquid material bin, and the liquid material metering scale is communicated with the stirrer through a pipeline.

6. An integrated concrete laboratory mixing plant according to claim 1, wherein: the upper box body is internally provided with a dust removing device.