CN102352837A - Lead pump piston head of plate grid die casting machine of lead-acid storage battery - Google Patents
Lead pump piston head of plate grid die casting machine of lead-acid storage battery Download PDFInfo
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- CN102352837A CN102352837A CN2011102991077A CN201110299107A CN102352837A CN 102352837 A CN102352837 A CN 102352837A CN 2011102991077 A CN2011102991077 A CN 2011102991077A CN 201110299107 A CN201110299107 A CN 201110299107A CN 102352837 A CN102352837 A CN 102352837A
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- piston head
- pressure regulating
- mounting groove
- hole
- seal ring
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Abstract
The invention discloses a lead pump piston head of a plate grid die casting machine of a lead-acid storage battery. The outer surface of the piston head is axially provided with a plurality of seal rings which are installed in mounting grooves on the piston head one by one; the lower end surface of the piston head is also provided with a pressure regulating hole; and pressure is introduced and applied to the seal rings in the corresponding mounting grooves, thus the good sealing of the seal rings and the side walls of the mounting grooves and a pump cavity is kept.
Description
Technical field
The present invention relates to the plumbous pump of a kind of lead acid accumulator plate grid die casting machine, used piston head on the especially plumbous pump.
Background technique
When carrying out the high pressure die casting of lead acid accumulator plate grid, at first lead is put into fusion in the lead pan, and then plumbous liquid is pressed in the mould casts by being arranged on plumbous pump in the lead pan.
Plumbous pump structure is as shown in Figure 1, comprises the pump housing 1 and is arranged on the piston head 2 in the pump housing pump chamber, and piston head 2 links to each other with external drive bar 3, and drives in pump chamber mobile by it.During work, plumbous liquid flows into pump chambers by hole 4, and piston head is about to plumbous liquid for 2 times and is extruded by hole 5, and is up then, treats that plumbous liquid gets into behind the pump chamber once more with its extrusion so circulation.
In order to seal, also be provided with some roads seal ring 6 vertically on piston head 2 and the outer surface that pump chamber matches, this some roads seal ring 6 is installed in the mounting groove 7 on the piston head one by one.But because rugged environments such as the characteristic of plumbous liquid and high temperature, still often because of the poorly sealed close leakage that causes, and reduced die casting pressure thus between piston head 2 and the pump chamber sidewall, increased the disqualification rate of product.
The model utility content
Problem to the existing technology existence; The object of the present invention is to provide the improved plumbous pump piston head of a kind of structure, use this piston head, can effectively improve the sealability between piston head and the pump chamber sidewall; Thereby guarantee the die casting pressure of plumbous pump, improve the die casting quality of grid.
For realizing above-mentioned purpose; The plumbous pump piston head of lead acid accumulator plate grid die casting machine of the present invention; The lower end surface of this piston head is plumbous liquid pushing tow face; Be provided with some roads seal ring vertically on piston head and the outer surface that plumbous pump pump chamber matches, this some roads seal ring is installed in the mounting groove on the piston head one by one, also is provided with the pressure regulating hole that is connected with one of them mounting groove at least on the lower end surface of piston head; Through this pressure regulating hole pressure is introduced and is applied on the seal ring in the corresponding mounting groove, make the excellent sealing of the maintenance of sealing circle and mounting groove sidewall and pump chamber.
Further, the said mounting groove that links to each other with said pressure regulating hole is connected with pressure regulating hole through its bottom land.
The bottom land of the said mounting groove that further, links to each other with said pressure regulating hole is along circumferentially being evenly equipped with the opening that several are connected with pressure regulating hole.
Further; Said piston head lower end surface is provided with several said pressure regulating holes; These several pressure regulating holes jointly are connected with one of them mounting groove at least, and each pressure regulating hole circumferentially is distributed on the bottom land of this mounting groove at the opening that this mounting groove is connected.
Further, said pressure regulating hole forms by joining along said piston head axially extended vertical adjusting hole with along the horizontal adjustment hole that piston head radially extends.
Further, said piston head is processed by carbon steel.
Further, said seal ring is processed by spheroidal graphite cast iron.
Further, said piston head upper end is provided with the tapped hole that links to each other with the external drive bar, also is provided with set screw hole on this tapped hole sidewall.
Piston head of the present invention is through after pressure being incorporated in the seal ring mounting groove, and when piston head pressed down, the plumbous liquid in the pump chamber entered into seal groove by pressure regulating hole, and with the outside pushing tow of seal ring, what make it to engage with pump chamber is tightr, and die casting pressure is guaranteed; And when piston head when up, pressure in the pressure regulating hole reduces, plumbous liquid no longer applies jacking force to seal ring, can reduce the wearing and tearing of seal ring again.
Description of drawings
Fig. 1 is the plumbous pump structure schematic representation of lead acid accumulator plate grid die casting machine;
Fig. 2 is the plumbous pump piston head of the present invention sectional view;
Fig. 3 is the worm's eye view of plumbous pump piston head among Fig. 2;
Fig. 4 be among Fig. 3 A to view.
Embodiment
Further specify the present invention below in conjunction with accompanying drawing.
Shown in Fig. 2-4, the plumbous pump piston head of lead acid accumulator plate grid die casting machine of the present invention integral body is cylindrical shape, is processed by middle-carbon steel.Piston head 2 upper ends link to each other with the external drive bar through tapped hole 4, and its lower end surface is plumbous liquid pushing tow face.On piston head 2 and the outer surface that plumbous pump pump chamber matches; Axially be provided with the seal ring 6 that three roads are processed by spheroidal graphite cast iron along piston head; Three seals circle 6 is fitted in the mounting groove 7 that is provided with on piston head 2 outer surfaces one by one, also is provided with the set screw hole 9 that matches with upper end threaded connection hole 8 on the outer surface of piston head 2.The lower end surface of piston head 2 is provided with 4 pressure regulating holes 10; This pressure regulating hole 10 forms by joining along piston head axially extended vertical adjusting hole with along the horizontal adjustment hole that piston head radially extends; Four pressure regulating holes 10 are connected through two mounting grooves 7 that are positioned at the bottom on its horizontal adjustment hole and the piston head 2 respectively; The opening in horizontal adjustment hole is arranged on the bottom land of two mounting grooves 7, and the opening of 4 pressure regulating holes on the same mounting groove circumferentially is uniformly distributed with along piston head.
During use, when piston head 2 pressed down, because the pressure effect, plumbous liquid will be forced into the bottom land of mounting groove 7 by four pressure regulating holes 10, and then seal ring 6 is outwards strutted, and the pump chamber of seal ring 6 and plumbous pump is closely contacted, and realized sealing; When carrying on the piston head 2, seal ring 6 effect that no longer is under pressure no longer closely contacts with pump chamber, thereby and pump chamber between friction very little, reduced the wearing and tearing of seal ring 6, and the resistance of carrying on the piston head 2 reduced, enhance productivity.
The effect of pressure regulating hole 10 is that pressure is incorporated into the radially inboard of seal ring 6; Therefore, the opening of pressure regulating hole 10 is preferably disposed on the bottom land of mounting groove 7, and; Preferably a plurality of openings circumferentially are set, so that pressure is evenly distributed on the circumferential total length of seal ring along piston head.
When on mounting groove 7, a plurality of opening being set, can dispose an independently pressure regulating hole for each opening, also can utilize a plurality of horizontal adjustment hole identical that opening is connected with a vertical adjusting hole with open amount.
The effect of pressure regulating hole 10 is when piston head 2 presses down, and the plumbous liquid of pressure is incorporated into mounting groove 7 bottom lands, and therefore, its structure is not limited to the top described structural type of being joined and being formed by vertical adjusting hole and horizontal adjustment hole.
Generally, only on 2-3 mounting groove 7, pressure regulating hole is set and satisfies seal request near the piston head lower end surface.The present invention is through on original piston head basis; Change a little; Even it reaches desirable sealing effect, and do not change original sealing ring material, thereby the present invention both can be used as the new product batch process; Also can on existing equipment, change a little and can use, practice thrift the reforming cost of manufacturer greatly.
Claims (8)
1. the plumbous pump piston head of a lead acid accumulator plate grid die casting machine; The lower end surface of this piston head is plumbous liquid pushing tow face; Be provided with some roads seal ring vertically on piston head and the outer surface that plumbous pump pump chamber matches; This some roads seal ring is installed in the mounting groove on the piston head one by one, it is characterized in that, also is provided with the pressure regulating hole that is connected with one of them mounting groove at least on the lower end surface of piston head; Through this pressure regulating hole pressure is introduced and is applied on the seal ring in the corresponding mounting groove, make the excellent sealing of the maintenance of sealing circle and mounting groove sidewall and pump chamber.
2. piston head as claimed in claim 1 is characterized in that, the said mounting groove that links to each other with said pressure regulating hole is connected with pressure regulating hole through its bottom land.
3. piston head as claimed in claim 2 is characterized in that, the bottom land of the said mounting groove that links to each other with said pressure regulating hole is along circumferentially being evenly equipped with the opening that several are connected with pressure regulating hole.
4. piston head as claimed in claim 1; It is characterized in that; Said piston head lower end surface is provided with several said pressure regulating holes; These several pressure regulating holes jointly are connected with one of them mounting groove at least, and each pressure regulating hole circumferentially is distributed on this mounting groove bottom land at the opening that this mounting groove is connected.
5. like the arbitrary described piston head of claim 1-4, it is characterized in that said pressure regulating hole forms by joining along said piston head axially extended vertical adjusting hole with along the horizontal adjustment hole that piston head radially extends.
6. according to piston head described in the claim 1, it is characterized in that said piston head is processed by carbon steel.
7. according to piston head described in the claim 1, it is characterized in that said seal ring is processed by spheroidal graphite cast iron.
8. according to piston head described in the claim 1, it is characterized in that said piston head upper end is provided with the tapped hole that links to each other with the external drive bar, also is provided with set screw hole on this tapped hole sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102991077A CN102352837A (en) | 2011-09-29 | 2011-09-29 | Lead pump piston head of plate grid die casting machine of lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102991077A CN102352837A (en) | 2011-09-29 | 2011-09-29 | Lead pump piston head of plate grid die casting machine of lead-acid storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352837A true CN102352837A (en) | 2012-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102991077A Pending CN102352837A (en) | 2011-09-29 | 2011-09-29 | Lead pump piston head of plate grid die casting machine of lead-acid storage battery |
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| CN (1) | CN102352837A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470474A (en) * | 2013-08-31 | 2013-12-25 | 蚌埠高科能源装备有限公司 | Novel small-diameter piston component structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070289442A1 (en) * | 2006-01-13 | 2007-12-20 | Waller Brian F | Half-sleeved and sleeveless plastic piston pumps |
| CN101216004A (en) * | 2008-01-07 | 2008-07-09 | 兰盛锋 | Balanced mixture gas dispensing device |
| CN101239607A (en) * | 2007-09-29 | 2008-08-13 | 俞兵 | Motor vehicle collision preventing device |
| DE102008010242A1 (en) * | 2008-02-21 | 2009-08-27 | Robert Bosch Gmbh | High pressure generator for use in e.g. fuel injection system in diesel engine, has piston interfused by cross hole in transverse direction, where hole opens into groove at end turned towards chamber and is connected to piston front surface |
| CN202250803U (en) * | 2011-09-29 | 2012-05-30 | 江苏三环实业股份有限公司 | Piston head for lead acid battery grid die casting machine lead pump |
-
2011
- 2011-09-29 CN CN2011102991077A patent/CN102352837A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070289442A1 (en) * | 2006-01-13 | 2007-12-20 | Waller Brian F | Half-sleeved and sleeveless plastic piston pumps |
| CN101239607A (en) * | 2007-09-29 | 2008-08-13 | 俞兵 | Motor vehicle collision preventing device |
| CN101216004A (en) * | 2008-01-07 | 2008-07-09 | 兰盛锋 | Balanced mixture gas dispensing device |
| DE102008010242A1 (en) * | 2008-02-21 | 2009-08-27 | Robert Bosch Gmbh | High pressure generator for use in e.g. fuel injection system in diesel engine, has piston interfused by cross hole in transverse direction, where hole opens into groove at end turned towards chamber and is connected to piston front surface |
| CN202250803U (en) * | 2011-09-29 | 2012-05-30 | 江苏三环实业股份有限公司 | Piston head for lead acid battery grid die casting machine lead pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470474A (en) * | 2013-08-31 | 2013-12-25 | 蚌埠高科能源装备有限公司 | Novel small-diameter piston component structure |
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Application publication date: 20120215 |