CN2032128U - Agitator for cement mortar - Google Patents

Abstract

The utility model discloses an improved agitator for cement mortar which belongs to the special equipment of the physical property checking of the cement. The utility model comprises a motor, a drive mechanism, an agitating device, a lifting device and a controller. By using a worm wheel and a worm speed reducer, the drive mechanism drives a planet device to make an agitating vane realize revolution and autorotation in a caldron; so the cement mortar which is agitated can realize sufficient and homogeneous degree, and the accuracy degree of the cement checking can be improved. The utility model has the advantages of small size, beautiful appearance and convenient operation.

Description

The cement paste mixer

The utility model relates to a kind of improvement of cement paste mixer, belongs to the special equipment of cement physical properties check.

China's current standard " GB1346-77 cement normal consistency water consumption, setting time, the stability method of inspection " the middle mixer of stipulating use, stirring vane can only rotation, in pot, repeating identical track on the clean slurry at a certain position, thereby stir inhomogeneous, this is the plane in the bottom of a pan, and the easy sizing in pot limit can not satisfy the requirement of test.

The mixer of the orbital path that adopts usually is cement paste and the dual-purpose mixer of mortar in the world, its transmission system is that the driven by motor little tooth difference speed reducer drives the planet device again, the diameter 202mm of pot, volume 5 liters, when carrying out China's GB, if only be used for stirring clean slurry, the volume that then seems is excessive and heavy, and little tooth difference speed reducer is made complicated, need accurate machined, the manufacturing cost height, inconvenient maintenance, the control mode of Cai Yonging is to use the minitype motor driving gear drive in the world, the working time and the duty of control mixer, its shortcoming is to make difficulty, cost height, not easy-maintaining; The lowering or hoisting gear of the agitated kettle of Cai Yonging is in the world: cooperate with negative and positive two slide rails, friction is moved up and down, and the frictional resistance of this structure is big.

Task of the present utility model is a kind of suitable China's national situation of design, and the small-sized clean slurry mixer of close international standard, stirring vane is done planetary rotation, energy rotation and revolution, and rotary motion trace spreads all over pot interior each position, and do not repeat, stir, good stability, elevating mechanism are taked to contact with steel ball between two slide rails, steel ball rolls between slide rail, thereby realizes that two slide rails move up and down; Control loop and major loop that automatic control system is formed with auxiliary reclay and transistor time relay form the electrical equipment programme-control, thus the working time and the duty of control mixer.Automatically control is malfunctioning for prevention simultaneously, and this machine also has manual overvide.

Fig. 1 is the overall construction drawing of the utility model cement paste mixer, mainly by motor 4, and transmission mechanism 6, stirring vane 8, agitated kettle 7, lowering or hoisting gear 2, pillar 1, support 3, outer cover 5 and controller 18 are formed.

Wherein transmission mechanism 6 drives worm gear, worm reducer 10 by motor 4 usefulness cingulums 9, drive planet device 11 again, worm-wheel shaft and stirring rachis are installed on the same rotating disk, the center of rotating disk and the axis coinciding of worm-wheel shaft, paddle axis deviation center of turntable (worm-wheel shaft axle center) 22.8mm, stir the rachis upper end one spur gear (planetary gear) is installed, it and planet internal gear are in engagement, and the planet internal gear is fixed.During work, motor rotates and reaches worm screw through synchronous cog belt, after the worm and gear deceleration, worm-wheel shaft moving dial rotation of generation, along with dial rotation, being installed in apart from the stirring rachis at center of turntable 22.8mm place is the axle center with the worm-wheel shaft, with 22.8mm is that radius rotates around the worm-wheel shaft axle center, thereby realize revolution, in revolution, because the planet internal tooth is fixed, the spur gear of paddle end (planetary gear) is meshed with the planet internal tooth, so planetary gear rolls, thereby realized the rotation of stirring rachis on the planet internal tooth.

That is: behind the motor rotation, through the cooperating of worm gear, worm reducer 10 and planetary driving device, paddle has been finished the action of rotation and revolution simultaneously.

The fit clearance of agitated kettle and paddle (Fig. 3) is 1 ± 0.2mm, and the diameter of agitated kettle is φ 160mm, and H140mm, volume are 2.5 liters.The profile camber line of paddle and the inner surface camber line of agitated kettle are corresponding, and the radius of paddle is 55.6mm, and leaf is 22.8mm with the off-centre of pot, so the outward flange of paddle will be crossed the center 32.8mm of agitated kettle, stir sufficient purpose thereby reach.

Lowering or hoisting gear (Fig. 4) is by handlebar, and pot holds in the palm 14, shift fork 15, and rotating disk 16 and guide rail 13 are formed.

The installation that interfixes of handlebar 12, rotating disk 16, shift fork 15, an end of shift fork 15 is a through hole, and an end is an open slot, and the centre bore of the centre bore of rotating disk 16 and shift fork 15 is fixed on the same rotating axle, and handlebar is fixed on the rotating disk; Pot holder 14 mainly is made up of pot holder guide rail, pot holder support, sliding axle 17, and pot holder guide rail will match with the guide rail 13 on being installed in instrument support 3 during work, and rotatable steel ball is arranged between two guide rails, makes pot ask 14 to move up and down along the guide rail direction.Sliding axle 17 is installed in the open slot of shift fork 15, move the handle dial rotation then shift fork rotate simultaneously.Be installed in the pot holder sliding axle in the shift fork open slot this moment, can not rotate, can only slide, thereby give the pot holder power up or down, impel pot holder 14 to move up or down along track by shift fork along open slot with shift fork.

In the middle of the track of pot holder track and instrument support rolling steel ball is installed, the resistance when making the pot holder mobile reduces greatly, and the upper and lower activity of energy freely.

Accompanying drawing 5 is the electrical equipment Automatic Control Theory figure of mixer controller, consists of the following components: 1. auxiliary reclay JZ7-44

, the 2. time relay

3. power transformer B220V/63V, and power switch, control button TA, QA and indicator lamp are formed.

With reference to Fig. 5 control program is described below:

1. connect power supply, starting button QA is pressed in the energising of power transformer input, and circuit is given electricity, auxiliary reclay Coil electricity,

Normally opened contact J ₁Adhesive, circuit forms holding circuit, the power supply of holding circuit.

2. after circuit is given electricity, auxiliary reclay

, the time relay

Coil is switched on simultaneously, Normally opened contact J ₂( ) adhesive; SJ ₁Energising work, its duty is: the adhesive of time-delay break contact (

), the disconnection of time-delay moving together contact (

).

3.

When switching on for 90 seconds,

Action, the time-delay break contact disconnects, the adhesive of time-delay moving together contact, auxiliary reclay Coil blackout, normally opened contact disconnects, normally-closed contact ( ) adhesive, Coil electricity work, this moment its time-delay moving together contact (

) be off state,

Equal no power.

4. SJ ₂When switching on for 15 seconds

Action, its time-delay moving together contact (

) connect,

Its time-delay break contact (

) since energising, be in the connection duty always; Coil electricity work, normally opened contact

Connect normally-closed contact Disconnect, at this moment, circuit working state is

Energising work, the contact Be in the connection circuit working state.

5. SJ ₃When switching on for 90 seconds, the time-delay break contact

Disconnect,

Outage, Disconnect.In the control original paper, except that power transformer, all outages, a work period is finished in the The whole control EP (end of program).

The relation of the working procedure of automatic control and the duty of mixer.

1. connect power supply, power transformer B energising, power supply indicator is bright.

2. press starting button QA,

Energising work,

Adhesive, mixer motor energising slow-speed (energising of 8 utmost point terminals), paddle low speed (rotation, revolution is carried out simultaneously) rotates, and indicator lamp is (slow ) bright.

3. motor slow-speed in the time of 90 seconds (

When switching on for 90 seconds), Outage, the contact Disconnect, motor stops operating, and paddle stops operating, and indicator lamp is (slow ) extinguish,

Energising work.

4. motor stall during 15 seconds (

When switching on for 15 seconds),

Energising work, the contact Adhesive is connected, and mixer motor changes (energising of 4 utmost point terminals) paddle high speed rotating (oneself, revolution are carried out simultaneously) soon, and indicator lamp is (fast

) bright.

When 5. motor changeed for 90 seconds soon ( When switching on for 90 seconds) contact

Disconnect, Disconnect, control circuit this moment all cut off the power supply (except the transformer B),

Disconnect, the motor outage stops operating, and control program is finished a work period.

Manually control procedure (Fig. 6) is as follows:

Manually control (Fig. 6) is that special requirement for mixer designs, and it is to utilize in the control automatically , increase again that toggle switch forms.Toggle switch has three class, and is fast, stop, slowly, and wherein, slow shelves are connected , fast shelves are connected

Working method: after connecting three-phase 380V power supply, switch is pushed slow shelves then

Energising

Adhesive, the energising of motor 8 utmost point terminals, motor slow-speed.If switch is pushed fast shelves, J ₂Energising Adhesive, the energising of electrode 4 utmost point terminals, electrode changes soon.Stop shelves as if switch is allocated to, then circuit is in off state.

Stirring vane 8 time rotationals, the slow-speed of revolution are 125 ± 5 rev/mins, and high rotating speed is 285 ± 10 rev/mins; During the stirring vane revolution, the slow-speed of revolution is 62 ± 5 rev/mins, and high rotating speed is 140 ± 10 rev/mins.The setting of rotation and revolution speed and mixing time all can be carried out or manual control is carried out automatically by control device.

The utility model---the cement paste mixer is to design in order to satisfy GB1346 standard revision needs in employing, its blade shape, the appearance of pot, it is identical that the movement locus of blade and ISOTC74 recommend, but the stirring the when volume of pot and work is to change half of ISO into according to the needs that China starches stirring only.This machine stirring track spreads all over full pot not to be repeated, and can guarantee the uniformity of cement paste.This machine improves to some extent than similar model in the world in the adjusting in transmission mechanism, jacking system blade and pot gap.

Adopt new cement paste mixer, improved the order of accuarcy of cement normal consistency, setting time, soundness test.And machine operation is convenient, good looking appearance.

Description of drawings

Fig. 1 cement paste mixer structure chart

Wherein 1, pillar

2, lowering or hoisting gear

3, support

4, motor

5, outer cover

6, transmission mechanism

Fig. 2 driver composition

Wherein 9, cingulum

10, worm gear, worm reducer

11, planet device

Fig. 3 agitated kettle schematic diagram

Wherein 7, agitated kettle

8, stirring vane

Fig. 4 agitated kettle lowering or hoisting gear schematic diagram

Wherein 12, handlebar

14, pot holder

13, guide rail

15, shift fork

16, rotating disk

17, sliding axle

18, controller

Fig. 5 agitated kettle Automatic Control Theory figure

The manual control principle figure of Fig. 6 agitated kettle

Claims (3)

1, a kind of cement paste mixer is made up of motor, transmission mechanism, agitated kettle, stirring vane, support and controller, it is characterized in that:

A, transmission mechanism 6 drives worm gear, worm reducer 10 by two-speed motor 4 by cingulum 9, drives planet device 11 again;

B, lowering or hoisting gear 2, by handlebar 12, agitated kettle holder 14, shift fork 15, rotating disk 16 and guide rail 13, sliding axle 17 is formed;

The installation that interfixes of handlebar 12, rotating disk 16, shift fork 15, an end of shift fork 15 is a through hole, and the other end is an open slot, and the centre bore of rotating disk 16 and the centre bore of shift fork are fixed on the same rotating axle, and handlebar 12 is fixed on the rotating disk 16; Pot holder 14 mainly is made up of pot holder guide rail, pot holder support, sliding axle 17.

C, the controller 18 of mixer is by 1. auxiliary reclay JZ7-44

, 2. transistor time relay

, 3. power transformer B220V/6.3V, and power switch, control button TA, QA, indicator lamp is formed.

2,, it is characterized in that agitated kettle is of a size of φ 160mm, H=140mm according to the described cement paste mixer of claim 1.

3,, it is characterized in that the programme-control of mixer is furnished with automatically and manual dual mode according to the described cement paste mixer of claim 1.

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