CN204783498U - Novel plunger do not have innage press pump - Google Patents
Novel plunger do not have innage press pump Download PDFInfo
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- CN204783498U CN204783498U CN201520412379.7U CN201520412379U CN204783498U CN 204783498 U CN204783498 U CN 204783498U CN 201520412379 U CN201520412379 U CN 201520412379U CN 204783498 U CN204783498 U CN 204783498U
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Abstract
The utility model belongs to the technical field of the plunger pump, refer in particular to a novel plunger do not have innage press pump, including the pump case, a plurality of plunger mechanism that main shaft and main shaft drove installs in the pump case, the shaping has a plurality of sections eccentric axial region on the main shaft, all overlaps on the eccentric axial region and is equipped with the bearing, fixes the cover on the bearing respectively and is equipped with the connecting rod of plunger mechanism, and the connecting rod rear end is provided with self -lubricating bearing, and it is articulated with the tip of plunger that the connecting rod passes through self -lubricating bearing. The utility model discloses a shaping has a plurality of sections eccentric axial region on the main shaft, has replaced the eccentric nested structure in traditional design to it is not hard up to have avoided eccentric cover can produce after long -time operation, leads to the defect of abnormal sound and wearing and tearing, the utility model discloses a connecting rod passes through the tip of self -lubricating bearing and plunger, and self -lubricating bearing comprises outer bearing cover, inner bearing cover and a plurality of pottery kingpin, has simple structure, equipment convenience, safe and reliable's advantage.
Description
Technical field
The invention belongs to plunger pump technique field, refer in particular to a kind of novel plunger without innage press pump.
Background technique
The portion of claimant discloses a kind of plunger without innage press pump at first patent ZL200920188760.4, be provided with in the pump housing by pump shaft, eccentric ring, bearing, connecting rod, plunger, the plunger pressure structure that plunger bushing etc. drive, plunger pressure structure is: have two connecting rod intervals at least and be coaxially arranged in parallel to each other on pump main shaft, described connecting rod is installed on bearing, bearing is installed on eccentric bushing, eccentric bushing is fixed on pump main shaft, the other end and the plunger of connecting rod are hinged, plunger is arranged in the cavity of the pump housing, selflubricating plunger bushing is provided with between the pump housing and plunger, water shutoff circle and pad is provided with in the end of plunger and the contacting point of pump head, advantage is: structure is simple, pollution-free, high pressure, high efficiency, long service life, just can operate without any lubricant oil or grease.
Claimant, in the process of production and sales, finds that this technology exists following defect: 1, realize the back and forth movement of plunger by setting-up eccentricity cover on main shaft, eccentric bushing can produce loosening after long-play, causes abnormal sound and wearing and tearing; 2, selflubricating plunger bushing is engineering plastics, or there is the phenomenon of cracking and wearing and tearing; 3, the bearing between connecting rod and plunger easily damages; When 4, being arranged on pump case by main shaft, based on machining accuracy and installation precision, the to-and-fro motion of main axis and plunger may exist inharmonious, i.e. the center line of plunger and the center line out of plumb of main shaft.
Summary of the invention
The object of this invention is to provide a kind of structure simple, safe and reliable novel plunger is without innage press pump.
The object of the present invention is achieved like this:
A kind of novel plunger is without innage press pump, comprise pump case, several plunger mechanism of main shaft and main shaft drive are installed in pump case, described main shaft forms the eccentric axial portion of some sections, eccentric axial portion is all set with bearing, on bearing, fixed cover is equipped with the connecting rod of plunger mechanism respectively, and rod rear end is provided with self oiling bearing, and connecting rod is hinged by the end of self oiling bearing and plunger.
Described self oiling bearing is made up of outer bearing sleeve, internal bearing sleeve and several ceramic needle rollers; Described outer bearing sleeve and internal bearing sleeve arranged concentric, be densely covered with the described ceramic needle roller of a circle between outer bearing sleeve and internal bearing sleeve, outer bearing sleeve and internal bearing sleeve are Bearing Steel product.
The two ends of described internal bearing sleeve are stretched out outer bearing sleeve and are respectively installed with back-up ring, and back-up ring to be folded between ceramic needle roller and plunger and to stop the end contact plunger of ceramic needle roller, the thickness stretching out the length >=back-up ring of outer bearing sleeve of described internal bearing sleeve.
Described plunger is located in selflubricating plunger bushing, and selflubricating plunger bushing is fixedly mounted in pump case, and selflubricating plunger bushing is polyimide product.
Described connecting rod is banding cover, and banding cover is held tightly on the bearing of correspondence by the lock bolt being arranged on its front end; Described banding cover rear side extend to form rounded end, the endoporus of rounded end is installed with described self oiling bearing.
Described pump case comprises pump cover and the pump housing, and plunger mechanism is arranged in the cylinder room in the pump housing; The interface of pump cover and pump housing arranged on left and right sides arranges main shaft installation position respectively; Main shaft is arranged on main shaft installation position by the main bearing at two ends, and the front side of pump cover is removably provided with rear door.
The front end of described plunger is provided with stud, and stud is set with Ceramic piston, and the interior laminating of the groove also groove wall of plunger front end is stretched in the inner of Ceramic piston; The outer end of Ceramic piston is provided with end cover, and the surface of contact of Ceramic piston and end cover is provided with seal ring, and the inner side at the middle part of end cover to be stretched in Ceramic piston and spun with described stud.
The present invention gives prominence to compared to existing technology and useful technique effect is:
1, main shaft of the present invention forms the eccentric axial portion of some sections, instead of the eccentric bushing structure in traditional design, thus avoid eccentric bushing and can produce loosening after long-play, cause the defect of abnormal sound and wearing and tearing;
2, connecting rod of the present invention is by the end of self oiling bearing and plunger, self oiling bearing is made up of outer bearing sleeve, internal bearing sleeve and several ceramic needle rollers, its plain bearing compared on the market (has the plastic bushing of location needle roller in traditional bearing, it easily ftractures after using a period of time), there is structure simple, easy to assembly, safe and reliable advantage;
3, the two ends of internal bearing sleeve of the present invention are stretched out outer bearing sleeve and are respectively installed with back-up ring, back-up ring to be folded between ceramic needle roller and plunger and to stop the end contact plunger of ceramic needle roller, the thickness stretching out the length >=back-up ring of outer bearing sleeve of described internal bearing sleeve, this design makes ceramic needle roller can not contact plunger, thus avoid ceramic needle roller and broken by plunger card, overall working life is enhanced;
4, selflubricating plunger bushing of the present invention is polyimide product, and it has excellent performance, thus avoids the shortcoming that Traditional project plastics easily ftracture and wear and tear;
5, connecting rod of the present invention is banding cover, and banding cover is held tightly on the bearing of correspondence by the lock bolt being arranged on its front end; Main shaft is arranged on main shaft installation position by the main bearing at two ends, the front side of pump cover is removably provided with rear door, when this design makes to install, first main shaft is arranged on pump case, locking tool is being undertaken screwing lock bolt by the window at rear door place, thus can avoid in traditional design, the center line of main plunger and the center line off plumb shortcoming of main shaft, overall working life can be improved greatly, avoid abnormal sound.
6, the front end of plunger of the present invention is provided with stud, and stud is set with Ceramic piston, in the groove that plunger front end is stretched in the inner of Ceramic piston and groove wall of fitting; The outer end of Ceramic piston is provided with end cover, the surface of contact of Ceramic piston and end cover is provided with seal ring, the inner side at the middle part of end cover to be stretched in Ceramic piston and is spun with described stud, when this design makes plunger movable, hydraulic pressure in cylinder body does not enter in it by the outer end of Ceramic piston, thus avoids Ceramic piston spalling under the effect of hydraulic pressure.
Accompanying drawing explanation
Fig. 1 is exploded view of the present invention.
Fig. 2 is that main shaft of the present invention and plunger mechanism coordinate schematic diagram.
Fig. 3 is the A place enlarged view of Fig. 1.
Fig. 4 is the B place enlarged view of Fig. 2.
Fig. 5 is the cooperation schematic diagram of self oiling bearing of the present invention and plunger.
Fig. 6 is the structural representation of Ceramic piston expansion cracking proof of the present invention.
Fig. 7 is the schematic diagram of main shaft of the present invention.
The 1-pump housing; 2-main shaft installation position; 3-main shaft installation position; 4-selflubricating plunger bushing; 5-plunger; 6-main bearing I; 7-connecting rod III; 8-connecting rod II; 9-connecting rod I; 10-input flange; 11-main bearing II; 12-lock bolt; 13-main shaft installation position; 14-pump cover; Door after 15-; 16-jump ring I; 17-bearing I; 18-bearing II; 19-jump ring II; 20-lock bolt; 21-bearing III; 22-jump ring III; 23-eccentric axial portion I; 24-eccentric axial portion II; 25-eccentric axial portion III; 26-locking end; 27-back-up ring; 28-outer bearing sleeve; 29-pottery needle roller; 30-internal bearing sleeve; 31-articulated column; 32-back-up ring; 33-piston; 34-screw rod; 35-seal ring; 36-end cover; 37-cylinder body; 38-main bearing II assembly department; 39-jump-ring slot I; 40-bearing I assembly department; 41-main shaft; 42-bearing II assembly department; 43-jump-ring slot II; 44-bearing III assembly department; 45-jump-ring slot III; 46-main bearing I assembly department.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described:
Novel plunger, without an innage press pump, comprises pump case, is provided with several plunger mechanism that main shaft 41 and main shaft 41 drive in pump case, and (the present embodiment is 3, that is, eccentric axial portion I 23 described main shaft 41 to form the eccentric axial portion of some sections; Eccentric axial portion II 24; Eccentric axial portion III 25), eccentric axial portion is all set with bearing (that is, bearing I 17; Bearing II 18, bearing III 21), on bearing, fixed cover is equipped with connecting rod (that is, the connecting rod III 7 of plunger mechanism respectively; Connecting rod II 8; Connecting rod I 9), rod rear end is provided with self oiling bearing, and connecting rod is hinged by the end of self oiling bearing and plunger 5.Main shaft of the present invention forms the eccentric axial portion of some sections, instead of the eccentric bushing structure in traditional design, thus avoid eccentric bushing and can produce loosening after long-play, cause the defect of abnormal sound and wearing and tearing;
Described self oiling bearing is made up of outer bearing sleeve 28, internal bearing sleeve 30 and several ceramic needle rollers 29; Described outer bearing sleeve 28 and internal bearing sleeve 30 arranged concentric, be densely covered with the described ceramic needle roller 29 of a circle between outer bearing sleeve 28 and internal bearing sleeve 30, outer bearing sleeve and internal bearing sleeve are Bearing Steel product.Self oiling bearing compares plain bearing (have the plastic bushing of location needle roller in traditional bearing, it easily ftractures after using a period of time) on the market, has structure simple, easy to assembly, safe and reliable advantage.
The end of described connecting rod stretches in the fluting of plunger end, and the plunger end at fluting place is horizontally arranged with articulated column, articulated column through interlinking lever end self oiling bearing and realize the flexible connection of connecting rod and plunger.
The two ends of described internal bearing sleeve 30 are stretched out outer bearing sleeve 28 and are respectively installed with back-up ring 27, back-up ring 27 to be folded between ceramic needle roller 29 and plunger 5 and to stop the end contact plunger of ceramic needle roller, the thickness stretching out the length >=back-up ring 27 of outer bearing sleeve of described internal bearing sleeve.Back-up ring freely rotates on articulated column, limits the sphere of activities of ceramic needle roller, and this design makes ceramic needle roller can not contact plunger, thus avoids ceramic needle roller and broken by plunger card, and overall working life is enhanced.
Described plunger is located in selflubricating plunger bushing, and selflubricating plunger bushing is fixedly mounted in pump case, and selflubricating plunger bushing is polyimide product.It has excellent performance, thus avoids the shortcoming that Traditional project plastics easily ftracture.
Described connecting rod is banding cover, and banding cover is held tightly on the bearing of correspondence by the lock bolt being arranged on its front end; Described banding cover rear side extend to form rounded end, the endoporus of rounded end is installed with described self oiling bearing.Described pump case comprises pump cover and the pump housing, and plunger mechanism is arranged in the cylinder room in the pump housing; The interface of pump cover and pump housing arranged on left and right sides arranges main shaft installation position respectively; Main shaft is arranged on main shaft installation position by the main bearing at two ends, and the front side of pump cover is removably provided with rear door.
When this design makes to install, first main shaft is arranged on pump case, locking tool is being undertaken screwing lock bolt by the window at rear door place, thus can avoid in traditional design, the center line of main plunger and the center line off plumb shortcoming of main shaft, overall working life can be improved greatly, avoid abnormal sound.
The front end of plunger 5 is provided with stud 34, stud 34 is set with Ceramic piston 33, in the groove that plunger 5 front end is stretched in the inner of Ceramic piston 33 and groove wall of fitting; The outer end of Ceramic piston 33 is provided with end cover 36, the surface of contact of Ceramic piston 33 and end cover 36 is provided with seal ring 35, the inner side at the middle part of end cover to be stretched in Ceramic piston and is spun with described stud 34, when this design makes plunger movable, hydraulic pressure in cylinder body 37 does not enter in it by the outer end of Ceramic piston 33, thus avoids Ceramic piston 33 spalling under the effect of hydraulic pressure.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (7)
1. a novel plunger is without innage press pump, comprise pump case, several plunger mechanism of main shaft and main shaft drive are installed in pump case, it is characterized in that, described main shaft forms the eccentric axial portion of some sections, eccentric axial portion is all set with bearing, on bearing, fixed cover is equipped with the connecting rod of plunger mechanism respectively, rod rear end is provided with self oiling bearing, and connecting rod is hinged by the end of self oiling bearing and plunger.
2. a kind of novel plunger according to claim 1 is without innage press pump, it is characterized in that, described self oiling bearing is made up of outer bearing sleeve, internal bearing sleeve and several ceramic needle rollers; Described outer bearing sleeve and internal bearing sleeve arranged concentric, be densely covered with the described ceramic needle roller of a circle between outer bearing sleeve and internal bearing sleeve, outer bearing sleeve and internal bearing sleeve are Bearing Steel product.
3. a kind of novel plunger according to claim 2 is without innage press pump, it is characterized in that, the two ends of described internal bearing sleeve are stretched out outer bearing sleeve and are respectively installed with back-up ring, back-up ring to be folded between ceramic needle roller and plunger and to stop the end contact plunger of ceramic needle roller, the thickness stretching out the length >=back-up ring of outer bearing sleeve of described internal bearing sleeve.
4. a kind of novel plunger according to claim 1 is without innage press pump, it is characterized in that, described plunger is located in selflubricating plunger bushing, and selflubricating plunger bushing is fixedly mounted in pump case, and selflubricating plunger bushing is polyimide product.
5. a kind of novel plunger according to claim 1 is without innage press pump, it is characterized in that, described connecting rod is banding cover, and banding cover is held tightly on the bearing of correspondence by the lock bolt being arranged on its front end; Described banding cover rear side extend to form rounded end, the endoporus of rounded end is installed with described self oiling bearing.
6. a kind of novel plunger according to claim 5 is without innage press pump, and it is characterized in that, described pump case comprises pump cover and the pump housing, and plunger mechanism is arranged in the cylinder room in the pump housing; The interface of pump cover and pump housing arranged on left and right sides arranges main shaft installation position respectively; Main shaft is arranged on main shaft installation position by the main bearing at two ends, and the front side of pump cover is removably provided with tightening cover.
7. a kind of novel plunger according to claim 1 is without innage press pump, and it is characterized in that, the front end of described plunger is provided with stud, and stud is set with Ceramic piston, and the interior laminating of the groove also groove wall of plunger front end is stretched in the inner of Ceramic piston; The outer end of Ceramic piston is provided with end cover, and the surface of contact of Ceramic piston and end cover is provided with seal ring, and the inner side at the middle part of end cover to be stretched in Ceramic piston and spun with described stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412379.7U CN204783498U (en) | 2015-06-15 | 2015-06-15 | Novel plunger do not have innage press pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412379.7U CN204783498U (en) | 2015-06-15 | 2015-06-15 | Novel plunger do not have innage press pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783498U true CN204783498U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520412379.7U Active CN204783498U (en) | 2015-06-15 | 2015-06-15 | Novel plunger do not have innage press pump |
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| Country | Link |
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| CN (1) | CN204783498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863814A (en) * | 2015-06-15 | 2015-08-26 | 梁国富 | Novel plunger oil-free high pressure pump |
| WO2017140188A1 (en) * | 2016-02-16 | 2017-08-24 | 梁国富 | Oil-free high-pressure plunger pump |
-
2015
- 2015-06-15 CN CN201520412379.7U patent/CN204783498U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863814A (en) * | 2015-06-15 | 2015-08-26 | 梁国富 | Novel plunger oil-free high pressure pump |
| CN104863814B (en) * | 2015-06-15 | 2016-11-30 | 梁国富 | A kind of plunger oil-free high-pressure pump |
| WO2017140188A1 (en) * | 2016-02-16 | 2017-08-24 | 梁国富 | Oil-free high-pressure plunger pump |
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