CN2204865Y - Buffer trunk piston dosing pump - Google Patents
Buffer trunk piston dosing pump Download PDFInfo
- Publication number
- CN2204865Y CN2204865Y CN 94215364 CN94215364U CN2204865Y CN 2204865 Y CN2204865 Y CN 2204865Y CN 94215364 CN94215364 CN 94215364 CN 94215364 U CN94215364 U CN 94215364U CN 2204865 Y CN2204865 Y CN 2204865Y
- Authority
- CN
- China
- Prior art keywords
- inner slide
- way valve
- drive shaft
- casing
- main drive
- 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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Abstract
The utility model relates to a buffer trunk piston measuring pump for adding medicine. One side of a box body is provided with a cylinder body having an inner slide block and a retracting spring internally. One end of a trunk piston is connected with the inner slide block via a joint, and the other end of the trunk piston sheathed in a trunk piston cylinder provided with a one-way valve. The outer part of the inner slide block is provided with a buffer composed of a damper spring, an outer slide block, the one-way valve and damping holes. The other side of the box body is provided with a regulating rod and a driving device composed of a driving shaft, a motor, a cycloidal planetary gear speed reducer, a shaft coupling, an eccentric roller and an eccentric wheel. The upper part of a main drive shaft and the box body is provided with two single-row conical bearings in or a double-row conical roller bearing, and the lower part of the main drive shaft and the box body is provided with a centripetal ball bearing or a centripetal cylindrical roller bearing.
Description
The utility model belongs to particularly suitable conveying and metering pump technical field fixing or dose variable.
The present plunger dosing metering pump that uses aborning, a single-row tapered roller bearing all is housed between its main drive shaft and casing top, the bottom, main drive shaft adopts this mode and such block bearing, and bearing is easy to wearing and tearing, and play up and down appears in main drive shaft.This plunger dosing metering pump, be set with eccentric roller on its eccentric wheel, when 22 millimeters of the gap up between the slide block of eccentric roller and cylinder body, motor drive the eccentric wheel rotation through speed reducer, main drive shaft, between the slide block of eccentric roller and cylinder body collision movement appears, eccentric roller per minute bears impulsive load tens times, maximum reaches more than 1 ton, and eccentric roller is often ruptured, the block bearing heavy wear of main drive shaft, even kill, cause damaging motor and reducing gear.
The purpose of this utility model is to overcome the shortcoming of above-mentioned plunger dosing metering pump, provides a kind of and leads the reasonable block bearing structure that passes axle, and set up the plunger dosing metering pump of damping device.
For achieving the above object, the solution that the utility model adopts is: the cylinder body that inner slide and retracting spring are housed in a side of casing is provided with, side at inner slide is provided with damping device, one end of plunger connects with inner slide by joint, end is sleeved in the plunger case in addition, be connected with one-way valve that links with input hole and the one-way valve that links with delivery outlet on the plunger case, side in addition at casing is provided with main drive shaft, the upper end of main drive shaft connects with motor and cycloidal planetary gear speed reducer by coupling, the middle part connects with the eccentric wheel that is set with eccentric roller, top between main drive shaft and the casing is equipped with two single-row tapered roller bearings or a double-row conical bearing symmetrically, radial ball bearing or roller bearing entad are equipped with in the bottom, also are provided with adjustable lever in the side in addition of casing.
The radial ball bearing that the utility model is installed between main biography axle and lower box is a single-row radial ball bearing, also radial short cylindrical roller bearing can be installed.The set damping device of inner slide one side is in the utility model cylinder body: the end at inner slide is provided with outer slide, and outer slide is provided with one-way valve and is processed with damping hole, is provided with damping spring between inner slide and the outer slide.
The one-way valve of establishing on the utility model outer slide is a ball check valve.
The utility model is compared with the plunger dosing metering pump that uses on producing, got rid of on the eccentric wheel impulsive load between slide block in the eccentric roller and cylinder body, and between main drive shaft and the casing since the supporting improper caused axial float, have advantages such as rational in infrastructure, safe and reliable, long service life, can be widely used in industries such as oil, chemical industry, electric power, environmental protection, mine.
Fig. 1 is a most preferred embodiment figure of the present utility model.
Below in conjunction with drawings and Examples the utility model is further described.
In Fig. 1, the plunger mechanism that is made of cylinder body 15, inner slide 13, retracting spring 14, joint 16, plunger 17, plunger case 18, one-way valve 19, one-way valve 20 is housed on the right side of casing 21, one end of plunger 17 by joint 16 connect with inner slide 13, in addition end is sleeved in the plunger case 18, there are a liquid input hole and one-way valve 20 to link on the plunger case 18, also have a liquid delivery outlet and one-way valve 19 to link.Outer sliding outer 11, damping spring 12, steel ball one-way valve 10, damping hole 1 constitute the damping device of present embodiment, inner slide 13 is sleeved in the outer slide 11, and and retracting spring 14 is sleeved in the cylinder body 15, between inner slide 13 and the outer slide 11 damping spring 12 is housed, a steel ball one-way valve 10 is housed on the outer slide 11 and is drilled with a damping hole 1, damping spring 12 can make outer slide 11 be close on the eccentric roller 4 of eccentric wheel 3, get rid of the gap of 11 of eccentric roller 4 and outer slides, thereby eliminated the collision of eccentric roller 4 and outer slide 11.When the gap between inner slide 13 end faces and the outer slide 11 increases, the cavity that liquid flows between inner slide 13 and the outer slide 11 through steel ball one-way valve 10, under the promotion of eccentric roller 4, outer slide 11 moves right, liquid between inner slide 13 and the outer slide 11 in the cavity is discharged through damping hole 1, played the hydraulic damping buffer function, eliminated the collision of outer slide 11 with inner slide 13.The utility model adopts damping device, has thoroughly eliminated the impulsive load that eccentric roller 4 produces with the collision of inner slide 13.
In Fig. 1, be equipped with by main drive shaft 6 in the left side of casing 21, coupling 8, motor and cycloidal planetary gear speed reducer 9, eccentric wheel 3, the transmission device that eccentric roller 4 constitutes, the upper end of main drive shaft 6 connects with coupling 8, and connect by the fast machine of the planet cycloid pinwheel of coupling 8 and motor and cycloidal planetary gear speed reducer 9, the main middle part that passes axle 6 connects with eccentric wheel 3 with key, on eccentric wheel 3, be set with eccentric roller 4, eccentric wheel 3 is changed to straight line motion with the moving running of the rotation of motor and cycloidal planetary gear speed reducer 9, promotes outer slide 11 by the eccentric roller 4 that is sleeved on the eccentric wheel 3, inner slide 13 moves right.When the eccentric distance e between eccentric roller 4 and the main drive shaft 6 rotates to the left side limit position of main drive shaft 6, under the effect of retracting spring 14, outer slide 11, inner slide 13 and plunger 17 are moved to the left to limit position, this moment, soup was from entering the mouth in one-way valve 20 is inhaled into plunger case 18, when the eccentric distance e between eccentric roller 4 and the main drive shaft 6 rotates to the right limit position of main drive shaft 6, eccentric roller 4 promotes outer slides 11, inner slide 13 and plunger 17 and moves right, and be extruded through one-way valve 19 soup in the plunger case 18 this moment from outlet.Top is equipped with two single-row tapered roller bearings 7, bottoms symmetrically a single-row radial ball bearing 2 is housed between main drive shaft 6 and casing 21, adopts this supporting structure, can get rid of the axial float of main drive shaft 6, prevents to damage motor and speed reducer.Adjustable lever 5 also is equipped with in left side at casing 21, adjustable lever 5 is used to regulate the flow of soup, one end of adjustable lever 5 stretches out casing 21 outsides, in addition end is close to inner slide 13 left side strokes in the cylinder body 15 to the limit position of left end, rotation adjustable lever 5, then force inner slide 13 move left and right, thereby change the stroke of plunger 17, be used for controlling the flow that plunger pump is discharged soup.
Claims (3)
1, a kind of buffering type plunger dosing metering pump, the cylinder body [15] of inner slide [13] and retracting spring [14] in being provided with, a side of casing [21] is housed, one end of plunger [17] links by joint [16] and inner slide [13], end is sleeved in the plunger case [18] in addition, be connected with one-way valve [20] that links with input hole and the one-way valve [19] that links with delivery outlet on the plunger case [18], side in addition at casing [21] is provided with the main axle [6] that passes, the upper end of main drive shaft [6] connects with motor and cycloidal planetary gear speed reducer [9] by coupling [8], the middle part connects with the eccentric wheel that is set with eccentric roller [4] [3], be provided with block bearing between main drive shaft [6] and the casing [21], side in addition at casing [21] also is provided with adjustable lever [5], it is characterized in that: the top between above-mentioned main drive shaft [6] and the casing [21] is equipped with two single-row tapered roller bearings [7] or a double-row conical bearing symmetrically, radial ball bearing or roller bearing entad are equipped with in the bottom, also are provided with damping device in a side of cylinder body [15] inner slide [13].
2, according to the described buffering type plunger of claim 1 dosing metering pump, it is characterized in that: the radial ball bearing of installing between said main drive shaft ［ 6 ］ and casing ［ 21 ］ bottom is a single-row radial ball bearing ［ 2 ］, entad roller bearing is the single-row centripetal cylindrical roller bearing; The damping device of said cylinder body ［ 15 ］ inner slide ［ 13 ］ one sides is: be provided with one-way valve and damping hole ［ 1 ］ on the outer slide of establishing in inner slide ［ 13 ］ end ［ 11 ］, be provided with damping spring ［ 12 ］ between inner slide ［ 13 ］ and the outer slide ［ 11 ］.
3, according to claim 1 or 2 described buffering type plunger dosing metering pumps, it is characterized in that: the one-way valve of establishing on the said outer slide ［ 11 ］ is steel ball one-way valve ［ 10 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215364 CN2204865Y (en) | 1994-07-11 | 1994-07-11 | Buffer trunk piston dosing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215364 CN2204865Y (en) | 1994-07-11 | 1994-07-11 | Buffer trunk piston dosing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2204865Y true CN2204865Y (en) | 1995-08-09 |
Family
ID=33831381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94215364 Expired - Fee Related CN2204865Y (en) | 1994-07-11 | 1994-07-11 | Buffer trunk piston dosing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2204865Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144466B (en) * | 2007-11-15 | 2010-04-21 | 齐玉符 | Differential constant flow pump |
| CN102252060A (en) * | 2011-07-15 | 2011-11-23 | 南通振康焊接机电有限公司 | Cycloidal pin-gear-type speed reducer |
| CN107165798A (en) * | 2017-07-20 | 2017-09-15 | 东营市海天石油科技有限责任公司 | Oil well dosing pump |
-
1994
- 1994-07-11 CN CN 94215364 patent/CN2204865Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144466B (en) * | 2007-11-15 | 2010-04-21 | 齐玉符 | Differential constant flow pump |
| CN102252060A (en) * | 2011-07-15 | 2011-11-23 | 南通振康焊接机电有限公司 | Cycloidal pin-gear-type speed reducer |
| CN107165798A (en) * | 2017-07-20 | 2017-09-15 | 东营市海天石油科技有限责任公司 | Oil well dosing pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: XIAN HIGHWAY INST. TO: ZHAO CHANGWU |
|
| CP03 | Change of name, title or address |
Address after: Shaanxi Xi'an 710064 Building No. 2 Xi'an Road, Greenwood road traffic university 60 group two floor of No. 2 Patentee after: Zhao Changwu Address before: 710064 Shaanxi Xi'an Cuihua Road No. 2 Patentee before: Xi'an Highway College |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |