CN2309883Y

CN2309883Y - Small capacity high-pressure homogenizer for experiment

Info

Publication number: CN2309883Y
Application number: CN 97235416
Authority: CN
Inventors: 邵元炳
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-02
Filing date: 1997-09-02
Publication date: 1999-03-10
Anticipated expiration: 2007-09-02

Abstract

The utility model discloses a small capacity homogenizer for experiment, which is characterized in that a planetary gear which has little tooth difference is used as the retarding mechanism of the small capacity homogenizer for experiment. The utility model has the advantages of compact structure, long work service life, steady work and wide voltage regulation range. The utility model can be used for ultrafine pulverization, emulsion and homogenization.

Description

Low capacity experiment type high pressure homogenizer

The utility model is a kind of experimental facilities, is a kind of low capacity experiment type high pressure homogenizer, is the equipment that is used for ultra-fine grinding, emulsification and homogeneous.

At present, the homogenizer of general low capacity all adopts the cam link mechanism of a plunger, slow down and adopt double reduction (secondary gear or one-level belt pulley one-level gear) mostly, its frame for movement is big, experiment type high pressure homogenizer below the 10 up-flow amounts just becomes the big health of microcephaly as per hour making, unreasonable on the structure, uneconomical on the price.

The purpose of this utility model just provides that a kind of compact conformation is reasonable, and volume is little, the low capacity experiment type high pressure homogenizer that cost is low.

The technical solution of the utility model is to adopt the small teeth number difference planet gear transmission mechanism, directly be connected with eccentric shaft 2 by motor 1 by flat key, the two ends of eccentric shaft 2 and motor coaxle are equipped with bearing 3 and bearing 4, the supporting role of superhigh speed rotation, the eccentric cam position of eccentric shaft 2 cooperates with the endoporus of planetary gear 5, in order to reduce the friction between them, bearing 6 is housed, planetary gear 5 is because the biasing of eccentric shaft 2 and internal gear 7 engagements, internal gear 7 is fixing with casing 8 usefulness bolts 22, do not rotate during motion, when eccentric shaft 2 during by motor 1 driven rotary (this moment, the rotating speed of eccentric shaft 2 was a rotating speed of motor) planetary gear 5 because the rotation of eccentric shaft 2 and the restriction of internal gear 7, planetary gear 5 is done the sagittal plane motion, also just make planetary gear 5 do the circumference translational motion around eccentric shaft 2 axis, also do gyration around self axle, the speed of circumference translational motion is actual to be exactly the input speed of motor, and the speed that planetary gear 5 is done gyration around self axis is exactly our needed output speed, and the rotation speed relation between them is:

Motor speed/{ the planetary gear number of teeth/(the internal gear number of teeth-planetary gear number of teeth) }=output speed (rev/min)

The rotating speed of planetary gear output is to insert planetary pin shaft hole by bearing pin on the cam 9 10 and pin sleeve 11 to pass to cam (for pin type), also can pass to cam (for slide block type) by crosshead shoe, 9 on cam is installed on the bearing block 12, bearing 13 is housed between them, this bearing bears the effect of low-speed heave-load, the plunger 16 that installing connecting rods 14 drives on piston 15 and the piston on the cam 9 is reciprocating, and its reciprocating stroke is decided by the twice of the eccentric throw of cam.

The reciprocating motion of plunger just produces suction and compression in the pump housing, the size of compression stress is then decided by the gap between two handwheels 17 and 18 control spools and the valve seat, and the gap is more little, and pressure is big more, and the effect of pulverizing, emulsification and homogeneous is just good more.

The pressure detecting of the pump housing 21 Pressure gauge 23, in order to prevent that material from directly entering Pressure gauge 23, Pressure gauge 23 generally all is equipped with spacer assembly 24, this structure adopts bellows 27 as the element (as Fig. 2) of isolating and transmit pressure, its advantage is that bellows 27 connections are welded with argon arc welding, sealing is reliable, and the transmission of pressure is flexible by bellows 27, reliable in structure.In addition, in order to reduce the residual clearance of bellows 27, insert blast pipe 26 in bellows 27, another effect of blast pipe 26 is to be convenient to mounting or dismounting and to change seal washer 25, and is rational in infrastructure.

As change the eccentric throw (promptly changing the stroke of plunger 16) of cam 9, or the diameter of change plunger 16, or the gearratio (promptly changing the reciprocal time of plunger 16) of change drive mechanism, just can produce the single plunger low discharge homogenizer of specification at 60 liters/hour to 5 liters/hour all size.

Rotation one end of eccentric shaft 2 is directly imported by motor 1, it mainly is to move back and forth the inhomogeneous machine shake that causes of gap work the causing load that brings in order to eliminate plunger 16 that the other end is installed flywheel 19, utilize the inertia of flywheel to play energy storage, the equipment work of making more tends to be steady.

The utility model adopts the small teeth number difference planet gear transmission mechanism, and gearratio is big, the one-level speed change, and compact conformation, gear wear is even, and parts life-span is long, stable drive, noise is low, and the bearing long service life is equipped with flywheel, and it is more steady to work, and range of regulation is wide.

Below in conjunction with description of drawings embodiment of the present utility model:

Figure 1 shows that the structure chart of the utility model embodiment.

Fig. 2 is the view of bellows-type spacer assembly, and the part name of each numbering expression is on the figure:

1. motor 2. eccentric shafts 3,4. bearing 5. planetary gears

6. bearing 7. internal gears 8. casings 9. cams

10. bearing pin 11. pin sleeves 12. bearing blocks 13. bearings

14. connecting rod 15. pistons 16. plungers 17. low pressure handwheels

18. high pressure handwheel 19. flywheels 20. piston pins 21. pump housings

22. bolt 23. Pressure gauges 24. are from device 25. seal washers

26. blast pipe 27. bellowss

The motor model is CO2-90S4, the motor 1 usefulness flat key that rotating speed is 1400 rev/mins is connected with eccentric shaft 2, the two ends of eccentric shaft 2 and motor coaxle are equipped with bearing 3 and 4, the other end of eccentric shaft 2 is installed flywheel 19, the eccentric cam position of eccentric shaft 2 cooperates with the endoporus of planetary gear 5, bearing 6 is housed between them, planetary gear 5 is because the biasing of eccentric shaft 2 and internal gear 7 engagements, internal gear 7 is fixing with casing 8 usefulness bolts 22, No. 45 steel-tooth faces of planetary gear 5 and internal gear 7 usefulness quench and make, planetary gear 5 numbers of teeth are 55, and internal gear 7 numbers of teeth are 59.When eccentric shaft 2 has motor 1 driven rotary, planetary gear 5 is because the rotation of eccentric shaft 2 and the restriction of internal gear 7, planetary gear 5 is done the sagittal plane motion, also just make planetary gear 5 do the circumference translational motion around eccentric shaft 2 axis, also do gyration around self axle, the speed of circumference translational motion equals the input speed of motor 1, be 1400 rev/mins, and the speed that planetary gear 5 is done gyration around self axis is exactly our needed output speed: output speed=motor speed/{ the planetary gear number of teeth/(the internal gear number of teeth-planetary gear number of teeth) }

=1400/{55/ (59-55) }=101.8 rev/mins

Pin shaft hole is housed on the planetary gear, planetary rotating speed inserts planetary pin shaft hole by bearing pin 10, pin sleeve 11 and passes to cam, also can pass to cam 9 by crosshead shoe, and cam 9 is installed on the bearing block 12, bearing 13 is housed between them, adopts needle bearing.No. 45 carbon steels of cam 9 usefulness are made, the plunger 16 that installing connecting rods 14 drives on piston 15 and the piston on the cam 9 is reciprocating, stroke is the twice of the eccentric throw of cam 9, reciprocal time is 101.8 rev/mins, piston 15 and plunger 16 are made with No. 45 steel and martensitic stain less steel respectively, and the pump housing 21 is cylinder iron made.

The reciprocating motion of plunger 16 produces suction and compression in the pump housing 21, the size of compression stress is decided by the gap between spool and the valve seat by handwheel 17 and 18 controls, the gap is more little, pressure is big more, and effect is good more, and this machine pressure limit is 1-100MPa, but hiigh pressure stage is used separately, also but low-pressure stage pressure is controlled between the 0-20MPa and adds high pressure, and pressure is easy to adjust, and control freely, this machine is the secondary pressure regulation, also can be made into the pressure regulation (single-stage high voltage) of one-level.

Pressure gauge 23 is housed on the pump housing 21, and its maximum range is 160MPa, and spacer assembly 24 is housed, and this machine adopts the element of bellows 27 as isolation and transmission pressure, seals the reliable leakage of not having, so pollution-free.In bellows 27, insert blast pipe 26, can reduce the residual clearance of bellows 27, can be convenient to the mounting or dismounting and the installation of seal washer 25 again.

Claims

1. low capacity experiment type high pressure homogenizer of forming by the reducing gear and the pump housing, it is characterized in that adopting the reducing gear of small teeth number difference planet gear transmission as homogenizer, one end of eccentric shaft 2 is connected with power source motor 1 by flat key, the other end is installed flywheel 19, the eccentric cam position of eccentric shaft 2 and the endoporus of planetary gear 5 are by 6 sliding joining of bearing, planetary gear 5 and internal gear 7 engagements, internal gear 7 is fixing with casing 8 usefulness bolts 22, bearing pin 10 slides in cam 9 and the pin sleeve 11, cam 9 is installed on the bearing block 12 by bearing 13, cam 9 overcoat connecting rods 14, connecting rod 14 is connected by piston pin 20 with piston 15, and plunger 16 is connected with piston 15, at the next door of the pump housing 21 tipping Pressure gauge 23, spacer assembly 24 is installed in the middle of the pump housing 21 and the Pressure gauge 23, at the different directions of the pump housing 21 low pressure handwheel 17 and high pressure handwheel 18 is installed.

2. according to the described low capacity experiment of claim type high pressure homogenizer, it is characterized in that the bellows 27 conduct isolation materials and the element that transmits pressure that described spacer assembly 24 adopts stainless steel material to make, and, seal reliably with the argon arc welding welding.

4. according to the described low capacity experiment of claim type high pressure homogenizer, the pressure limit that it is characterized in that described this utility model is 1-100MPa, but high pressure use separately, but also low-pressure stage pressure is controlled at the use that adds high pressure again between the 0-20MPa.

4. according to the described low capacity experiment of claim type high pressure homogenizer, the few tooth difference that it is characterized in that described small teeth number difference planet gear reducing gear is that the difference of the internal gear number of teeth and the external gear number of teeth should be in 3 to 7 scope.

5. according to the described spacer assembly 24 of claim, it is characterized in that the opening part of described bellows 27 is installed blast pipe 28 and seal washer 29.