CN209104956U - A kind of transmission mechanism of metering pump - Google Patents
A kind of transmission mechanism of metering pump Download PDFInfo
- Publication number
- CN209104956U CN209104956U CN201821922653.5U CN201821922653U CN209104956U CN 209104956 U CN209104956 U CN 209104956U CN 201821922653 U CN201821922653 U CN 201821922653U CN 209104956 U CN209104956 U CN 209104956U
- Authority
- CN
- China
- Prior art keywords
- compression bar
- cam
- metering pump
- partition
- reset spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 53
- 238000007906 compression Methods 0.000 claims abstract description 53
- 238000005192 partition Methods 0.000 claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 235000019988 mead Nutrition 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of transmission mechanisms of metering pump, including cylinder body, motor, cylinder body is by first partition, second partition is separated into, in, lower three parts, the cam that phase difference is 180 ° there are two being clamped on the output shaft of motor, a kind of transmission mechanism of metering pump further includes two groups of transmission devices, two groups of transmission devices include mandril, reel cage and compression bar, first partition is articulated with by bracket in the middle part of reel cage, one end of reel cage and mandril top are hinged, the other end and compression bar top are hinged, reset spring is surrounded with around compression bar, reset spring top is connected at the top of compression bar, bottom end is connected to second partition, compression bar bottom end is fixedly connected with plunger, ejector rod bottom end and cam contact.The utility model respectively drives two groups of mandrils, reel cage, compression bar, plunger and does the opposite reciprocating motion of state, to realize liquid pulse free advection by being clamped the cam that two phase differences are 180 ° on motor output shaft.
Description
Technical field
The utility model relates to measure pump technical field, the transmission mechanism of specifically a kind of metering pump.
Background technique
Metering pump usually realizes the reciprocating motion of plunger by cam driven transmission device, to carry out to liquid accurate
Metering and addition.Since metering pump moves back and forth mechanism, so can generate pulse in liquid adding procedure, this pulse can be led
It causes liquid addition uneven, and then influences the chemical reaction in industrial production, influence product quality.
For the defect pulse for solving metering pump, a kind of metering pump for eliminating pulse is disclosed in the prior art, although can be with
The pulse phenomenon in metering pump use process is effectively eliminated, but the power moved back and forth arises directly from same eccentric wheel, and
It is not provided with the component for preventing driving member from wearing, eccentric wheel is easily worn.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of pulse free advections, the metering for preventing driving member from wearing
The transmission mechanism of pump.
In order to solve the above technical problems, a kind of transmission mechanism of metering pump described in the utility model, including cylinder body, electricity
Machine, the cylinder body are separated into upper, middle, and lower part by first partition, second partition, and institute is run through in output shaft one end of the motor
Cylinder side wall is stated, there are two the cam that phase difference is 180 °, a kind of biographies of metering pump for clamping on the output shaft of the motor
Motivation structure further includes two groups of transmission devices, and two groups of transmission devices include mandril, reel cage and compression bar；It is logical in the middle part of the reel cage
It crosses bracket and is articulated with first partition, one end of the reel cage and the mandril top are hinged, the other end of the reel cage and the pressure
Bar top is hinged, and reset spring is surrounded with around the compression bar, and the reset spring top is connected at the top of the compression bar,
The reset spring bottom end is connected to the second partition, and the compression bar bottom end is fixedly connected with plunger；The ejector rod bottom end with
The cam contact, the position of two cams are corresponding with the position of two mandrils respectively.
Further, the outer edge profile of the cam meets Archimedian screw curvilinear characteristic.
Further, the compression bar activity is nested with spring pedestal, and the spring pedestal is fixedly connected on the second partition,
The reset spring bottom end is connected to the spring pedestal.
Further, compression bar set is nested at the top of the compression bar, it is internal that the reset spring top is connected to the compression bar set.
Further, the mandril lower end is nested top stem casing.
Compared with the prior art, the utility model has the following advantages:
1. the utility model by being clamped two phase differences on motor output shaft is 180 °, outer edge profile meet Ah
The cam of base Mead helical curve feature respectively drives two groups of mandrils, reel cage, compression bar and does the opposite reciprocating motion of state, in turn
It drives two plungers to do the opposite reciprocating motion of state, to realize liquid pulse free advection, guarantees that liquid uniformly adds.
2. the utility model prevents reset spring by the way that the spring pedestal to match with reset spring is being arranged on cylinder body
Displacement reduces the abrasion between reset spring and compression bar.
3. the utility model avoids spring from contacting cylinder body by nesting compression bar set fixed at the top of compression bar, mandril fortune is reduced
Dynamic frictional force improves stabilization of equipment performance and service life.
4. the utility model, being capable of removal by the way that the top stem casing that hardness is lower than cam and mandril is arranged in mandril lower end nesting
Cam can effectively prevent the abrasion of cam and mandril to the power of mandril horizontal direction, need to only regularly replace top stem casing
, reduce overhaul of the equipments cost.
Detailed description of the invention
Fig. 1 is the main view sectional view of the utility model embodiment 1.
Fig. 2 is the main view sectional view of the utility model embodiment 2.
Fig. 3 is the connection schematic diagram of the utility model cam and motor.
In figure: 1, cylinder body, 2, compression bar set, 3, compression bar, 4, reset spring, 5, bracket, 6, reel cage, 7, mandril, 8, top stem casing,
9, cam, 10, output shaft, 11, spring pedestal, 12, plunger, 13, motor, 14, first partition, 15, second partition.
Specific embodiment
Illustrate to be described further the utility model with reference to the accompanying drawing.
Embodiment 1: a kind of transmission mechanism of metering pump as shown in Figure 1,3, including cylinder body 1, motor 13, cylinder body 1 is by the
One partition 14, second partition 15 are separated into upper, middle, and lower part, and 1 side wall of cylinder body, electricity are run through in 10 one end of output shaft of motor 13
Being clamped on the output shaft 10 of machine 13 there are two phase difference is 180 ° of cam 9, and a kind of transmission mechanism of metering pump further includes two groups
Transmission device, two groups of transmission devices include mandril 7, reel cage 6 and compression bar 3；In the middle part of reel cage 6 by bracket 5 be articulated with first every
Plate 14, one end and 7 top of mandril of reel cage 6 are hinged, and the other end of the reel cage 6 and 3 top of compression bar are hinged, surround around compression bar 3
It is provided with reset spring 4,4 top of reset spring is connected to 3 top of compression bar, and 4 bottom end of reset spring is connected to second partition 15, presses
3 bottom end of bar is fixedly connected with plunger 12；7 bottom end of mandril is contacted with cam 9, the position of two cams 9 respectively with two mandrils 7
Position is corresponding；The outer edge profile of cam 9 meets Archimedian screw curvilinear characteristic.
The course of work of the present embodiment is as follows: motor 13, which is powered, to be run, and it is 180 ° that output shaft 10, which drives two phase differences,
9 uniform rotation of cam, under the action of reset spring 4,7 bottom end of mandril is contacted with the external margin of cam 9, when mandril 7 with
9 contact point of cam to 10 axle center of output shaft distance by most as far as it is nearest when, i.e., cam 9 to diameter by being up to minimum when, it is convex
During taking turns 9 uniform rotation, reset spring 4 drives compression bar 3 to rise, and compression bar 3 drives mandril 7 to decline by reel cage 6, this process
In, under the collective effect of reset spring 4 and cam 9, plunger 12 at the uniform velocity rises with compression bar 3,7 uniform descent of mandril, plunger 12
Cooperate pump head, completes a liquid even suction；When mandril 7 at a distance from the contact point of cam 9 to 10 axle center of output shaft by most
When closely arriving farthest, i.e., cam 9 to diameter by minimum to it is maximum when, 9 uniform rotation of cam drives mandril 7 at the uniform velocity to rise, and mandril 7 leads to
It crosses reel cage 6 and drives 3 uniform descent of compression bar, reset spring 4 is shunk, and plunger 12 cooperates pump head with 3 uniform descent of compression bar, plunger 12,
A liquid is completed uniformly to be discharged.It is clamped on output shaft 10 there are two the cam 9 that phase difference is 180 °, each cam 9 is corresponding
One group of transmission device, each cam 9 cooperate reset spring 4 to respectively drive two groups of mandrils 7, reel cage 6, compression bar 3 to do state opposite
It moves back and forth, and then two plungers 12 is driven to do the opposite reciprocating motion of state, to realize liquid pulse free advection, guarantee liquid
Body uniformly adds.
Embodiment 2: as shown in Figure 2,3, a kind of transmission mechanism of metering pump of the present embodiment and the difference of embodiment 1
Be: reset spring 4 is mobile in order to prevent, avoids reset spring 4 and compression bar 3 from rubbing, 3 activity of compression bar is nested with spring pedestal
11, spring pedestal 11 is fixedly connected on second partition 15, and 4 bottom end of reset spring is connected to spring pedestal 11；In order to avoid resetting
Spring 4 contacts cylinder body 1, and compression bar set 2 is nested at the top of compression bar 3, and 4 top of reset spring is fixedly connected on inside compression bar set 2；For
Abrasion of the mandril 7 to cam 9 is effectively reduced, in 7 lower end of mandril is nested top stem casing 8,8 hardness of top stem casing is lower than convex
Wheel 9 and mandril 7.
The course of work of the present embodiment is as follows: motor 13, which is powered, to be run, and it is 180 ° that output shaft 10, which drives two phase differences,
9 uniform rotation of cam, under the action of reset spring 4, the bottom end of top stem casing 8 is contacted with the external margin of cam 9 always, when
Top stem casing 8 at a distance from 9 contact point of cam to 10 axle center of output shaft by most as far as it is nearest when, i.e., cam 9 to diameter by being up to
When minimum, during 9 uniform rotation of cam, reset spring 4 drives compression bar 3 to rise by compression bar set 2, and compression bar 3 is driven by reel cage 6
Decline mandril 7 and top stem casing 8, during this, under the collective effect of reset spring 4 and cam 9, compression bar 3 and plunger 12
At the uniform velocity rise with compression bar set 2,8 uniform descent of mandril 7 and top stem casing, plunger 12 cooperates pump head, completes a liquid even suction；
When top stem casing 8 at a distance from the contact point of cam 9 to 10 axle center of output shaft by recently to it is farthest when, i.e., cam 9 to diameter by most
It is small to it is maximum when, 9 uniform rotation of cam drives top stem casing 8, mandril 7 at the uniform velocity to rise, and mandril 7 drives compression bar 3, pressure by reel cage 6
2 uniform descent of rod set, reset spring 4 are shunk, and plunger 12 cooperates pump head, complete a liquid with 3 uniform descent of compression bar, plunger 12
Uniformly discharge.It being clamped on output shaft 10 there are two the cam 9 that phase difference is 180 °, each cam 9 corresponds to one group of transmission device,
Each cam 9 cooperates reset spring 4 to respectively drive, and two groups of top stem casings 8, mandril 7, reel cage 6, compression bar 3, that compression bar set 2 does state is opposite
Reciprocating motion, and then two plungers 12 is driven to do the opposite reciprocating motion of state, to realize liquid pulse free advection, guaranteed
Liquid uniformly adds.
Claims (5)
1. a kind of transmission mechanism of metering pump, including cylinder body (1), motor (13), the cylinder body (1) is by first partition (14),
Two partitions (15) are separated into upper, middle, and lower part, and the cylinder body (1) side is run through in output shaft (10) one end of the motor (13)
Wall, it is characterised in that: it is clamped on the output shaft (10) of the motor (13) there are two the cam (9) that phase difference is 180 °, it is described
A kind of transmission mechanism of metering pump further includes two groups of transmission devices, and two groups of transmission devices include mandril (7), reel cage (6)
With compression bar (3)；It is articulated with first partition (14) in the middle part of the reel cage (6) by bracket (5), one end of the reel cage (6) and institute
State that mandril (7) top is hinged, the other end of the reel cage (6) and the compression bar (3) top are hinged, surround around the compression bar (3)
It is provided with reset spring (4), reset spring (4) top is connected at the top of the compression bar (3), reset spring (4) bottom
End is connected to the second partition (15), and compression bar (3) bottom end is fixedly connected with plunger (12)；Mandril (7) bottom end with
Cam (9) contact, the position of two cams (9) are corresponding with the position of two mandrils (7) respectively.
2. a kind of transmission mechanism of metering pump according to claim 1, it is characterised in that: the external edge of the cam (9)
Edge shape meets Archimedian screw curvilinear characteristic.
3. a kind of transmission mechanism of metering pump according to claim 1, it is characterised in that: compression bar (3) activity is nested
Have spring pedestal (11), the spring pedestal (11) is fixedly connected on the second partition (15), reset spring (4) bottom end
It is connected to the spring pedestal (11).
4. a kind of transmission mechanism of metering pump according to claim 1, it is characterised in that: nested at the top of the compression bar (3)
Have compression bar set (2), it is internal that reset spring (4) top is connected to the compression bar set (2).
5. a kind of transmission mechanism of metering pump according to claim 1, it is characterised in that: mandril (7) lower end is nested
It is provided with top stem casing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922653.5U CN209104956U (en) | 2018-11-21 | 2018-11-21 | A kind of transmission mechanism of metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922653.5U CN209104956U (en) | 2018-11-21 | 2018-11-21 | A kind of transmission mechanism of metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104956U true CN209104956U (en) | 2019-07-12 |
Family
ID=67160876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821922653.5U Expired - Fee Related CN209104956U (en) | 2018-11-21 | 2018-11-21 | A kind of transmission mechanism of metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209104956U (en) |
-
2018
- 2018-11-21 CN CN201821922653.5U patent/CN209104956U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |