CN201851350U - Novel pump cover of large-size junction box (JB) radial variable plunger pump - Google Patents
Novel pump cover of large-size junction box (JB) radial variable plunger pump Download PDFInfo
- Publication number
- CN201851350U CN201851350U CN2010205611189U CN201020561118U CN201851350U CN 201851350 U CN201851350 U CN 201851350U CN 2010205611189 U CN2010205611189 U CN 2010205611189U CN 201020561118 U CN201020561118 U CN 201020561118U CN 201851350 U CN201851350 U CN 201851350U
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- China
- Prior art keywords
- pump
- variable plunger
- plunger pump
- novel
- pump cover
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Abstract
The utility model discloses a novel pump cover of a large-size junction box (JB) radial variable plunger pump, which is mainly formed by manufacturing a cylindrical valve cover body, designing an internal drainage oil discharging hole in the valve cover body and assembling the internal drainage oil discharging hole and a co-driving flange into one body. The structure, the shape and the design are reasonable, and in addition, the universality is high.
Description
Affiliated technical field
The utility model relates to the dynamical element of a kind of radially Variable plunger pump spool from flow servo variable displacement control mechanism, and particularly a kind of large-scale JB is the novel pump cover of Variable plunger pump radially.
Background technique
At present, external traditional radial plunger pump servo variable mechanism is because of complex structure, processing difficulties, be subjected to the restriction of processing conditions, promote difficulty, since the needs of hydraulic control, the production method of the control runner on the part (valve gap or title valve body), be generally the casting runner, processability instability, accuracy of manufacturing are not high.
Summary of the invention
Problem to be solved in the utility model is, overcomes the deficiencies in the prior art, and a kind of large-scale JB that adapts to radial plunger pump is provided the radially novel pump cover of Variable plunger pump.It can be made by ductile cast iron material, and through special spraying treatmen, has stronger wear resistance, and simple in structure, high pressure resistant, non-leakage.Also can make, and runner processing is conventional machine tooling substantially, overcome the coarse shortcoming of casting runner, be convenient to produce in batches of steel part.
The technological scheme that its technical problem that solves the utility model adopts is: make one and be shaped as cylindrical valve gap body, design is let out oil drainage hole in having and and is driven flange altogether and be assembled into one and constitute in its body.During use, assemble and constitute spool with spool, valve seat from the flow servo structure, it is the endoporus that utilizes spool, hydraulic oil enters the pump housing from inlet, by the pump cover sealing, through transmission shaft rotor is rotated, drive plunger and push hydraulic oil and form high pressure oil, in the pump housing, pump cover chamber, form high pressure oil and be delivered to outside the pump housing, finish the process that is converted to high pressure oil by low pressure oil.The valve gap channels designs considered processing complexity and with the part universality of constant-pressure variable mode, boundary dimension do not do change.
The beneficial effects of the utility model are, adopt self distributing construction, have simplified design, and manufacture cost has reduced much relatively, convenient use.Simultaneously available steel part has enlarged the range of choice of material, does not change the outside dimensions of servo valve gap again, helps standardization and unitized work, for the end user, can improve original use pump performance and system optimization with less reforming cost again.Increasing of internal drainage mouth makes that pump integral body is more reasonable, and pump housing radial dimension can suitably reduce.Reduce cost.
Drive the increase of flange altogether, can realize that double pump (three pumps) connects altogether, helps energy saving.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a plan view structural representation of the present utility model.
Fig. 2 is a left view structural representation of the present utility model.
Accompanying drawing number is: 1. let out oil drainage hole in, 2. the valve gap body 3. drives flange altogether.
Embodiment
With reference to Fig. 1, Fig. 2 makes one and is shaped as cylindrical valve gap body (2), and design is let out oil drainage hole (1) in having and and driven flange (3) altogether and be assembled into one and constitute in its body.During use, assemble and constitute spool with spool, valve seat from the flow servo structure, it is the endoporus that utilizes spool, hydraulic oil enters the pump housing from inlet, by the pump cover sealing, through transmission shaft rotor is rotated, drive plunger and push hydraulic oil and form high pressure oil, in the pump housing, pump cover chamber, form high pressure oil and be delivered to outside the pump housing, finish the process that is converted to high pressure oil by low pressure oil.The valve gap channels designs considered processing complexity and with the part universality of constant-pressure variable mode, boundary dimension do not do change.
Claims (2)
1. a large-scale JB novel pump cover of Variable plunger pump radially is characterized in that: make one and be shaped as cylindrical valve gap body, let out oil drainage hole in its body there being design and and drive flange altogether and be assembled into one and constitute.
2. large-scale JB according to claim 1 is the novel pump cover of Variable plunger pump radially, it is characterized in that: valve gap adopts ductile cast iron material as material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205611189U CN201851350U (en) | 2010-10-14 | 2010-10-14 | Novel pump cover of large-size junction box (JB) radial variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205611189U CN201851350U (en) | 2010-10-14 | 2010-10-14 | Novel pump cover of large-size junction box (JB) radial variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851350U true CN201851350U (en) | 2011-06-01 |
Family
ID=44093745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205611189U Expired - Fee Related CN201851350U (en) | 2010-10-14 | 2010-10-14 | Novel pump cover of large-size junction box (JB) radial variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156304A (en) * | 2015-10-23 | 2015-12-16 | 邹桂平 | Oil inlet end cover for compressor pump |
| CN107013453A (en) * | 2017-05-22 | 2017-08-04 | 俞扬池 | A kind of special hydraulic pump closure |
-
2010
- 2010-10-14 CN CN2010205611189U patent/CN201851350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156304A (en) * | 2015-10-23 | 2015-12-16 | 邹桂平 | Oil inlet end cover for compressor pump |
| CN107013453A (en) * | 2017-05-22 | 2017-08-04 | 俞扬池 | A kind of special hydraulic pump closure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20111014 |