CN201827040U - Parallel double-cylinder metering pump - Google Patents
Parallel double-cylinder metering pump Download PDFInfo
- Publication number
- CN201827040U CN201827040U CN2010202270869U CN201020227086U CN201827040U CN 201827040 U CN201827040 U CN 201827040U CN 2010202270869 U CN2010202270869 U CN 2010202270869U CN 201020227086 U CN201020227086 U CN 201020227086U CN 201827040 U CN201827040 U CN 201827040U
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- worm
- metering pump
- wheel shaft
- connecting rod
- tub
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Abstract
The utility model discloses a parallel double-cylinder metering pump. The metering pump comprises a motor, pump heads, a case and a reciprocating mechanism, wherein at least two pump heads are arranged on the case, and are connected with the motor through the reciprocating mechanism; the reciprocating mechanism comprises a worm gear drive component, crankshaft link mechanisms and slide bar components; the power input end of the worm gear drive component is connected with the motor; the worm gear drive component is at least provided with two power output ends; each power output end of the worm gear drive component is connected with a crankshaft link mechanism; and each crankshaft link mechanism is connected with a slide bar component. The parallel double-cylinder metering pump has the advantages of compact structure and small size, and can not only serve impulse-free conveying function, but also adjust flow rate according to working conditions, thereby expanding the application range of the metering pump, and improving the adaptability of the metering pump.
Description
Technical field
The utility model relates to a kind of parallel twin-tub metering pump.
Background technique
As fluid delicate metering and the ideal equipment that adds, metering pump has been widely used in industries such as comprising pharmacy, food, petrochemical industry.Because the working method of metering pump adopts to-and-fro motion mechanism, therefore in the process of input/output medium, can produce pulse to delivery line, this pulse may bring adverse effect to chemical reaction in the technological process.The water hammer effect that further causes owing to pulse can produce damaging impact and tangible noise to delivery line.
For solving the defect pulse of metering pump, a kind of metering pump that can eliminate pulse is disclosed in the prior art.For example on February 10th, 2010 disclosed Chinese patent, notification number is CN101644244A, patent name is a Pulseless metering pump.This metering pump comprises motor, pump head and plunger, and its eccentric wheel links to each other with the rotatingshaft of motor by driving mechanism; Described eccentric wheel has the external margin shape that meets the archimedes curve feature; This metering pump has two pump heads and two plungers, the corresponding pump head of each plunger; In the both sides of eccentric wheel side subtend two slide bar assemblies are set, the phase near-end of two slide bar assemblies respectively has a connecting rod that runs through the slide bar assembly, two connecting rods connect by coupling bar between its corresponding termination, and make the termination of two slide bar assemblies be close to eccentric side; Each is connected with a plunger two slide bar assemblies by link respectively.
Though above-mentioned metering pump can effectively be eliminated the ubiquitous pulse phenomenon of metering pump using process, but because it obtains reciprocating power all is directly to come from the same eccentric wheel, this eccentric wheel directly drives the slide bar assembly, therefore two pump heads on this metering pump can only be positioned at the both sides of cabinet, identical and the station of moving direction during reciprocators work in two pump heads is series relationship, so just causes the metering pump volume big.The to-and-fro motion amount of slide bar assembly is influenced by eccentric wheel only in this metering pump, and eccentric operating range immobilizes, so the flow of this metering pump is unadjustable.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of reasonable in design, the small and exquisite parallel twin-tub metering pump of volume.
Another technical problem to be solved in the utility model provides the adjustable parallel twin-tub metering pump of a kind of flow.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: this parallel twin-tub metering pump comprises motor, pump head, cabinet, reciprocator, at least be provided with two pump heads on the described cabinet, described pump head is connected with motor by reciprocator, described reciprocator comprises the worm and gear transmitting assemblies, connecting rod, the slide bar assembly, the power intake of described worm and gear transmitting assemblies is connected with motor, described worm and gear transmitting assemblies is provided with two clutch ends at least, each clutch end of described worm and gear transmitting assemblies all is connected with a connecting rod, and each described connecting rod all is connected with a slide bar assembly.Can be installed in a side of cabinet by two pump heads of the parallel twin-tub metering pump of this technology, make that this metering pump internal structure is more compact.During work, the moving direction of the reciprocator in two pump heads is opposite, and the station of two reciprocators is relation in parallel.
As of the present utility model preferred, described worm and gear transmitting assemblies comprises worm screw, worm gear and worm-wheel shaft, meshes between the described worm and wheel, and described worm-wheel shaft is connected worm gear inside, described worm screw is connected with motor, and described worm-wheel shaft two ends are the connecting crank linkage mechanism separately.Adopt the worm and gear transmitting assemblies can reach higher velocity ratio, thereby make this parallel twin-tub metering pump have stable performance characteristic.
As of the present utility model preferred, described worm-wheel shaft two ends are tubular structure, described connecting rod comprises eccentric mass, shifting axle, bearing, connecting rod, described eccentric mass takes the shape of the letter U, described eccentric mass is movably connected in the worm-wheel shaft outside, described shifting axle is installed in worm-wheel shaft inside, described shifting axle is provided with the perforate with respect to the shifting axle axioversion, described worm-wheel shaft is provided with the chute perpendicular to the worm-wheel shaft center line, described eccentric mass, connect by slide block between worm-wheel shaft and the shifting axle, described slide block passes perforate and chute, and described bearing is movably connected in the eccentric mass outside, and described connecting rod is movably connected in the bearing outside, described connecting rod is connected with the slide bar assembly, described shifting axle also is connected with accent amount screw mandrel, and described accent amount screw mandrel is installed on the cabinet, and the opening of the eccentric mass at described worm-wheel shaft two ends is towards on the contrary.This connecting rod can realize regulating the amplitude of swing, because connecting rod is connected with the slide bar assembly, is exactly to make the to-and-fro motion stroke of slide bar assembly to change like this, thereby realizes the flow regulating function of parallel twin-tub metering pump.
As of the present utility model preferred, described accent amount screw mandrel is provided with handle.Handle can be convenient to realize the adjusting operation to connecting rod.
As of the present utility model preferred, described cabinet is provided with the graduated flake of corresponding accent amount screw mandrel.The sign of graduated flake can provide position reference for handle, can realize the quantitative adjusting of connecting rod like this.
As of the present utility model preferred, also be provided with the lock screw that is used for fixing accent amount screw mandrel on the described cabinet.Lock screw has been arranged, and the position of accent amount screw mandrel just can be more firm, and connecting rod has stable service behaviour like this.
The utility model adopts technique scheme: compact structure, the volume of this parallel twin-tub metering pump are small and exquisite, the conveying function of no pulse not only can be provided, can also be according to regulating working conditions flow size, thereby enlarged the using scope of this parallel twin-tub metering pump, improved the adaptability of this parallel twin-tub metering pump.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the structural representation I of a kind of parallel twin-tub metering pump of the utility model;
Fig. 2 is the structural representation II of a kind of parallel twin-tub metering pump of the utility model.
Embodiment
As shown in Figure 1, 2, this parallel twin-tub metering pump comprises motor 1, pump head, cabinet 2, reciprocator.Cabinet 2 is provided with two pump heads, and motor 1 is installed in cabinet 2 outsides, and reciprocator is installed in cabinet 2 inside.Pump head is connected with reciprocator, and reciprocator is connected with motor 1.This reciprocator comprises worm and gear transmitting assemblies, connecting rod, slide bar assembly.
The worm and gear transmitting assemblies comprises coupling 3, worm screw 4, worm gear 5 and worm-wheel shaft 6.Coupling 3 is connected with the output terminal of motor 1, and coupling 3 is connected with worm screw 4, and worm screw 4 is connected with a joggle with worm gear 5, and worm screw 4 is movably connected on the cabinet 2 by bearing 12.Worm-wheel shaft 6 is made up of two-part, comprises driving shaft 7 and driven shaft 8.Driving shaft 7 one ends are provided with the tube that is used to install connecting rod, and the other end is provided with connecting key; Driven shaft 8 one ends are provided with the tube that is used to install connecting rod, and the other end is provided with connecting key.This end that driven shaft 8 is provided with connecting key passes worm gear 5, and is provided with this end embedding mutually of connecting key with driven shaft 8, is movably connected by connecting key between driven shaft 8 and the driving shaft 7 like this.Driving shaft 7 also is equipped with worm gear back-up ring 9 at this end that passes worm gear 5, can be with the fixed-site between driving shaft 7 and the worm gear 5 by worm gear back-up ring 9.Worm-wheel shaft 6 adopts separate type, can be so that the production of worm-wheel shaft 6 and assembling.
On the tube of driving shaft 7 and driven shaft 8 connecting rod is installed all, as shown in Figure 2, this connecting rod comprises eccentric mass 10, shifting axle 11, bearing 12, connecting rod 13.Eccentric mass 10 takes the shape of the letter U, which is provided with opening, eccentric mass 10 is installed in the outside of driven shaft 8 and driving shaft 7, in order to reduce volume, make the structure between eccentric mass 10 and the worm-wheel shaft 6 more compact, be provided with center line symmetry and the chute vertical with center line relatively separately in the outside of driven shaft 8 and driving shaft 7, eccentric mass 10 flexibly connects with worm-wheel shaft 6 by being embedded in the chute.Shifting axle 11 is provided with perforate 14, and perforate 14 is elongated, and the center line of the bearing of trend of perforate 14 and shifting axle 11 intersects to tilt.Shifting axle 11 is installed in the tube of driven shaft 8, driving shaft 7.Eccentric mass 10 links together eccentric mass 10, worm-wheel shaft 6 and shifting axle 11 with slide block 19 after being installed in the chute.This slide block 19 passes chute, perforate 14, and two ends are installed on the eccentric mass 10.In eccentric mass 10 outsides bearing 12 is installed, connecting rod 13 is installed in the outside of bearing 12.Connecting rod 13 is connected with the slide bar assembly that promotes pump head work.On worm-wheel shaft 6, eccentric mass 10 openings that are installed in its two ends are towards on the contrary.
End at shifting axle 11 also is connected with accent amount screw mandrel 15, and this accent amount screw mandrel 15 is installed on the cabinet 2, and an end of accent amount screw mandrel 15 is positioned at cabinet 2 outsides and handle 16 is installed.Cabinet 2 also is being provided with graduated flake 17 near on the position of handle 16.Also be provided with the lock screw 18 that is used for fixing accent amount screw mandrel 15 on cabinet 2, loosening lock screw 18 can allow accent amount screw mandrel 15 rotate with respect to cabinet 2, otherwise, tighten lock screw 18 and can allow accent amount screw mandrel 15 maintain static with respect to cabinet 2.
During work, motor 1 energising is rotated, and power has passed to worm screw 4 by coupling 3.Be in engagement between worm screw 4 and the worm gear 5, worm screw 4 is rotated and must drive worm gear 5 rotations.Worm gear 5 rotates and has driven worm-wheel shaft 6 rotations, and like this, the eccentric mass 10 at worm-wheel shaft 6 two ends rotates immediately.
When shifting axle 11 when worm-wheel shaft 6 center lines move, slide block 19 is done the motion of vertical worm-wheel shaft 6 centerline directions under the effect of perforate 14, so just drive eccentric mass 10 and done the motion of vertical worm-wheel shaft 6 centerline directions, and then the center line of eccentric mass 10 departs from the center line of worm-wheel shaft 6, therefore eccentric mass 10 is done revolution motion around worm-wheel shaft 6 in worm-wheel shaft 6 rotation processes, finally makes connecting rod 13 move reciprocatingly.The amount that logical overshoot screw mandrel 15 is twitched shifting axle 11 can be regulated the eccentric distance of eccentric mass 10, and connecting rod 13 reciprocating strokes just can be controlled like this.Connecting rod 13 is connected with the slide bar assembly, the controlled final controlled purpose of this metering pump flow that realized of connecting rod 13 strokes.Because the adjusting of two connecting rods operation is operation separately, this just makes that the flow adjustable extent of this parallel twin-tub metering pump is wider, more accurate.
Two eccentric mass 10 openings on worm-wheel shaft 6 are towards on the contrary, like this when the action of the connecting rod at two ends just opposite, be that reciprocating state is just opposite, the other end begins towards the direction motion away from pump head when an end begins towards pump head movement, thereby realize two continuous alternations of pump head, eliminated pulse phenomenon.
This parallel twin-tub metering pump adopts worm and gear transmitting assemblies and connecting rod, the metering pump structure is optimized, reasonable in design, compactness.The worm and gear transmitting assemblies makes the pump head of metering pump can be arranged on the same side of cabinet 2, and then makes things convenient for use greatly.The flow adjustable function of connecting rod can satisfy the flow output requirement under the different operating modes, thereby has enlarged the using scope of this parallel twin-tub metering pump, improves the adaptability of this parallel twin-tub metering pump.
Claims (6)
1. parallel twin-tub metering pump, this parallel twin-tub metering pump comprises motor (1), pump head, cabinet (2), reciprocator, at least be provided with two pump heads on the described cabinet (2), described pump head is connected with motor (1) by reciprocator, it is characterized in that: described reciprocator comprises the worm and gear transmitting assemblies, connecting rod, the slide bar assembly, the power intake of described worm and gear transmitting assemblies is connected with motor (1), described worm and gear transmitting assemblies is provided with two clutch ends at least, each clutch end of described worm and gear transmitting assemblies all is connected with a connecting rod, and each described connecting rod all is connected with a slide bar assembly.
2. according to the described parallel twin-tub metering pump of claim 1, it is characterized in that: described worm and gear transmitting assemblies comprises worm screw (4), worm gear (5) and worm-wheel shaft (6), engagement between described worm screw (4) and the worm gear (5), described worm-wheel shaft (6) is connected worm gear (5) inside, described worm screw (4) is connected with motor (1), and described worm-wheel shaft (6) two ends are the connecting crank linkage mechanism separately.
3. according to the described parallel twin-tub metering pump of claim 2, it is characterized in that: described worm-wheel shaft (6) two ends are tubular structure, described connecting rod comprises eccentric mass (10), shifting axle (11), bearing (12), connecting rod (13), described eccentric mass (10) takes the shape of the letter U, described eccentric mass (10) is movably connected in worm-wheel shaft (6) outside, described shifting axle (11) is installed in worm-wheel shaft (6) inside, described shifting axle (11) is provided with the perforate (14) with respect to shifting axle (11) axioversion, described worm-wheel shaft (6) is provided with the chute perpendicular to worm-wheel shaft (6) center line, described eccentric mass (10), connect by slide block (19) between worm-wheel shaft (6) and the shifting axle (11), described slide block (19) passes perforate (14) and chute, described bearing (12) is movably connected in eccentric mass (10) outside, described connecting rod (13) is movably connected in bearing (12) outside, described connecting rod (13) is connected with the slide bar assembly, described shifting axle (11) also is connected with accent amount screw mandrel (15), described accent amount screw mandrel (15) is installed on the cabinet (2), and the opening of the eccentric mass (10) at described worm-wheel shaft (6) two ends is towards on the contrary.
4. according to the described parallel twin-tub metering pump of claim 3, it is characterized in that: described accent amount screw mandrel (15) is provided with handle (16).
5. according to the described parallel twin-tub metering pump of claim 4, it is characterized in that: described cabinet (2) is provided with the graduated flake (17) of corresponding accent amount screw mandrel (15).
6. according to claim 4 or 5 described parallel twin-tub metering pumps, it is characterized in that: also be provided with the lock screw (18) that is used for fixing accent amount screw mandrel (15) on the described cabinet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202270869U CN201827040U (en) | 2010-06-12 | 2010-06-12 | Parallel double-cylinder metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202270869U CN201827040U (en) | 2010-06-12 | 2010-06-12 | Parallel double-cylinder metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827040U true CN201827040U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202270869U Expired - Lifetime CN201827040U (en) | 2010-06-12 | 2010-06-12 | Parallel double-cylinder metering pump |
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| Country | Link |
|---|---|
| CN (1) | CN201827040U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518574A (en) * | 2012-01-09 | 2012-06-27 | 马鞍山基业环保科技有限公司 | Dual-regulating low-pulse diaphragm metering pump with two pump heads |
| CN102758769A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Direct-coupled double-acting stroke adjusting device used in reciprocating metering pump |
| WO2016095865A1 (en) * | 2014-12-19 | 2016-06-23 | 郑州三华科技实业有限公司 | Color paste pump capable of both massive injection and micro injection |
| US11480163B2 (en) | 2018-08-27 | 2022-10-25 | Saudi Arabian Oil Company | Pumping system with control features for controlling stroke duration and injection volume |
| CN115875231A (en) * | 2022-10-09 | 2023-03-31 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
-
2010
- 2010-06-12 CN CN2010202270869U patent/CN201827040U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518574A (en) * | 2012-01-09 | 2012-06-27 | 马鞍山基业环保科技有限公司 | Dual-regulating low-pulse diaphragm metering pump with two pump heads |
| CN102758769A (en) * | 2012-04-08 | 2012-10-31 | 杭州大潮石化设备有限公司 | Direct-coupled double-acting stroke adjusting device used in reciprocating metering pump |
| CN102758769B (en) * | 2012-04-08 | 2015-08-26 | 杭州大潮石化设备有限公司 | For the direct connection double-action stroke adjusting device of Reciprocating Metering Pump |
| WO2016095865A1 (en) * | 2014-12-19 | 2016-06-23 | 郑州三华科技实业有限公司 | Color paste pump capable of both massive injection and micro injection |
| US10533543B2 (en) | 2014-12-19 | 2020-01-14 | Zhengzhou Sanhua Technology & Industry Co., Ltd | Pump capable of dispensing both a large volume and a small volume of colorant |
| US11480163B2 (en) | 2018-08-27 | 2022-10-25 | Saudi Arabian Oil Company | Pumping system with control features for controlling stroke duration and injection volume |
| CN115875231A (en) * | 2022-10-09 | 2023-03-31 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
| CN115875231B (en) * | 2022-10-09 | 2023-10-24 | 山东泰展机电科技股份有限公司 | Internal circulation air pump with brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 310018 Hangzhou City, Zhejiang Province Economic and Technological Development Zone No. 20, No. 658 Depam Street (Hangzhou) Pump Technology Co. Ltd. Patentee after: Depamu (Hangzhou) Pump Technology Co., Ltd. Address before: 310018, Zhejiang, Hangzhou economic and Technological Development Zone, No. 3, No. 3, 3 Avenue (Hangzhou) Pump Technology Co., Ltd., Hangzhou Patentee before: Depamu (Hangzhou) Pump Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |