CN203384044U - Duplicate gear oil pump for preventing oil staining of front and rear parts - Google Patents
Duplicate gear oil pump for preventing oil staining of front and rear parts Download PDFInfo
- Publication number
- CN203384044U CN203384044U CN201320497455.XU CN201320497455U CN203384044U CN 203384044 U CN203384044 U CN 203384044U CN 201320497455 U CN201320497455 U CN 201320497455U CN 203384044 U CN203384044 U CN 203384044U
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- China
- Prior art keywords
- gear shaft
- gear
- driving gear
- pump
- oil
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Abstract
The utility model discloses a duplicate gear oil pump for preventing oil staining of front and rear parts. The oil pump comprises a front cover, a front pump body, a front connecting plate, a rear connecting plate, a rear pump body, and a rear cover, wherein the front cover, the front pump body, the front connecting plate, the rear connecting plate, the rear pump body and the rear cover are orderly arranged from left to right; the front connecting plate and the rear connecting plate are adjacently arranged; oil seal cavities are arranged at the parts of main holes of the front connecting plate and the rear connecting plate; an oil seal is respectively arranged inside each of the oil seal cavity of the front connecting plate and the oil seal cavity of the rear connecting plate; the right end of a front driving gear shaft extends rightwards to an inner cavity of the rear pump body; the right end part of the front driving gear shaft is connected with the left end part of a rear driving gear shaft through an internal spline; the connecting part between the right end part of the front driving gear shaft and the left end part of the rear driving gear shaft is arranged inside the inner cavity of the rear pump body. The duplicate gear oil pump for preventing oil staining of front and rear parts, disclosed by the utility model, has the advantages that two different hydraulic oils can be used on the same pump; the duplicate gear oil pump is simple in structure, convenient to install, reasonable and easy in layout of hydraulic pipelines and the like.
Description
Technical field
The utility model relates to a kind of front and back and does not go here and there oily duplicate gear oil pump.
Background technique
The duplicate gear oil pump is of wide application as the dynamical element of hydraulic system, a lot of clients are arranged according to requirement of system design, need the dynamical element of a kind of duplicate gear oil pump front pump as system, then pump provides lubricant oil as auxiliary pump for system, therefore just need between the forward and backward pump of duplicate gear oil pump oil circuit not connected, can use two kinds of different hydraulic oil simultaneously.
In prior art, as shown in Figure 3, existing problem is that the external splines of front pump driving gear, rear pump driven gear links by spline housing 18, the inner chamber in the center portion of joining plate before and after connection place between front driving gear shaft and rear drive gear axle is arranged in, and this connection place is without sealing configuration, therefore before, the oil circuit between pump by the connection place of forward and backward pump driving gear UNICOM mutually, the front and back pump can only use a kind of hydraulic oil, can't meet the demand that forward and backward pump uses different hydraulic oil, have significant limitation.Realize using the requirement of two kinds of different hydraulic oil on same gear oil pump, may adopt two cover hydraulic systems, but so, pipeline large with regard to making gear oil pump to have to take up room arranges complexity, the problems such as difficulty is installed, and is difficult to meet the need of market.
The model utility content
The utility model is the deficiency existed in above-mentioned prior art for avoiding, and provides a kind of front and back not go here and there oily duplicate gear oil pump, so that can on same gear oil pump, use two kinds of different hydraulic oil.
The utility model be the technical solution problem by the following technical solutions.
Before and after do not go here and there oily duplicate gear oil pump, its structural feature is to comprise oil pump body, gear shaft, axle sleeve and gear; Described axle sleeve and gear all are sheathed on described gear shaft; Described oil pump comprises protecgulum, the front pump housing, front joining plate, rear joining plate, the rear pump housing and bonnet, and described protecgulum, the front pump housing, front joining plate, rear joining plate, the rear pump housing and bonnet set gradually from left to right;
Described gear shaft comprises driving gear shaft and driven gear shaft, described driving gear shaft comprises front driving gear shaft and rear drive gear axle, described driven gear shaft comprises front driven gear shaft and rear driven gear shaft, and the right-hand member of described front driving gear shaft is inserted among described rear pump housing inner chamber and the left end of front driving gear shaft stretches out in outside the described rear pump housing;
The main aperture position of the setting adjacent with rear joining plate of described front joining plate and front joining plate and rear joining plate is provided with the oil sealing chamber, in the oil sealing chamber of described front joining plate and in the oil sealing chamber of rear joining plate, respectively is provided with an oil sealing; The right-hand member of described front driving gear shaft extends to the right among the inner chamber of the described rear pump housing, and the right part of front driving gear shaft is connected by internal spline with the left part of described rear drive gear axle.
Front and back of the present utility model are not gone here and there the structural feature of oily duplicate gear oil pump and are yet:
Described gear comprises front driving gear, rear drive gear, front driven gear and rear driven gear;
Described front driving gear is sheathed on described front driving gear shaft, and described rear drive gear is sheathed on described rear drive gear axle, and described front driven gear is sheathed on described front driven gear shaft, and described rear driven gear is sheathed on described rear driven gear shaft; Described front driving gear and front driven gear are meshed, and described rear drive gear and rear driven gear are meshed.
Compared with the prior art, the utility model beneficial effect is embodied in:
Oily duplicate gear oil pump is not gone here and there in front and back of the present utility model, on front joining plate, rear joining plate, oil sealing hole is set, oil sealing is installed in oil sealing hole, the interior coupling part extension design of front pump driving gear axle, through the oil sealing hole on front joining plate, rear joining plate and the internal spline of rear pump driven gear axle, link, simultaneously interior joining shaft is stretched with oil sealing formation sealing configuration and is stoped the intercommunication of forward and backward pump oil circuit.
Oily duplicate gear oil pump is not gone here and there in front and back of the present utility model, be applicable to the industries such as mining machinery, hoisting transporter tool, road building machine, environmental sanitation machinery, light industry and machinery, have can same pump use two kinds of different hydraulic oil, layout simple in structure, easy for installation, hydraulic pipe line also can be comparatively reasonable and easy etc. advantage.
The accompanying drawing explanation
Fig. 1 is that the sectional view of oily duplicate gear oil pump is not gone here and there in front and back of the present utility model.
Fig. 2 is that the front joining plate of oily duplicate gear oil pump and the sectional view of rear joining plate are not gone here and there in front and back of the present utility model.
The structural drawing of the gear oil pump that Fig. 3 is prior art.
Label in accompanying drawing 1～accompanying drawing 3: 1 protecgulum, 2 rear joining plates, 3 oil sealings, 4 axle sleeves, the 5 front pump housings, 6 front joining plates, the 7 rear pump housings, 8 bonnets, 9 front driving gear shafts, 10 rear drive gear axles, 11 front driven gear shafts, 12 front driving gears, 13 rear drive gears, 14 front driven gears, 15 rear driven gears, 16 rear driven gear shafts, 17 oil sealing chambeies, 18 spline housings.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment
Referring to accompanying drawing 1～accompanying drawing 2, oily duplicate gear oil pump is not gone here and there in front and back, comprises oil pump body, gear shaft, axle sleeve 4 and gear; Described axle sleeve 4 and gear all are sheathed on described gear shaft; Described oil pump comprises protecgulum 1, the front pump housing 5, front joining plate 6, rear joining plate 2, the rear pump housing 7 and bonnet 8, and described protecgulum 1, the front pump housing 5, front joining plate 6, rear joining plate 2, the rear pump housing 7 and bonnet 8 set gradually from left to right;
Described gear shaft comprises driving gear shaft and driven gear shaft, described driving gear shaft comprises front driving gear shaft 9 and rear drive gear axle 10, described driven gear shaft comprises front driven gear shaft 11 and rear driven gear shaft 16, and the right-hand member of described front driving gear shaft 9 is inserted among the described rear pump housing 7 inner chambers and the left end of front driving gear shaft 9 stretches out in outside the described rear pump housing 7;
The main aperture position of the setting adjacent with rear joining plate 2 of described front joining plate 6 and front joining plate 6 and rear joining plate 2 is provided with oil sealing chamber 17, in the oil sealing chamber 17 of described front joining plate 6 and in the oil sealing chamber 17 of rear joining plate 2, respectively is provided with an oil sealing 3; The right-hand member of described front driving gear shaft 9 extends to the right among the inner chamber of the described rear pump housing 7, and the right part of front driving gear shaft 9 is connected by internal spline with the left part of described rear drive gear axle 10, and this connection part is arranged in the inner chamber of the rear pump housing.
Described gear comprises front driving gear 12, rear drive gear 13, front driven gear 14 and rear driven gear 15;
Described front driving gear 12 is sheathed on described front driving gear shaft 9, described rear drive gear 13 is sheathed on described rear drive gear axle 10, described front driven gear 14 is sheathed on described front driven gear shaft 11, and described rear driven gear 15 is sheathed on described rear driven gear shaft 16; Described front driving gear 12 and front driven gear 14 are meshed, and described rear drive gear 13 and rear driven gear 15 are meshed.
Oily duplicate gear oil pump is not gone here and there in front and back of the present utility model, the interior coupling part of front pump driving gear axle and rear pump driven gear axle is set to internal spline, front pump driving gear axle right-hand member lengthens, internal spline through forward and backward joining plate and rear pump driven gear axle links, within the interior coupling part of front pump driving gear axle and rear pump driven gear axle is arranged on the rear pump housing, on front joining plate, rear joining plate, oil sealing hole structure is set, thereby make forward and backward gear oil pump internal oil passages not connected, the different demand of oil product when meeting the forward and backward gear operation of oil pump of client.
In existing gear oil pump, the inner chamber at joining plate center before and after joint between front driving gear shaft and rear drive gear axle is arranged in, joint is sealing not, thereby the inner chamber of the front and back pump housing communicates, if the front and back pump housing uses two kinds of hydraulic oil, will make hydraulic oil the phenomenon of mixing occur.In duplicate gear oil pump of the present utility model, the right-hand member of front driving gear shaft is extended, make the connection part between front driving gear shaft and rear drive gear axle be positioned among the rear pump housing.In the center portion of front and back joining plate, the oil sealing chamber is set, in the oil sealing chamber, oil sealing is set, to between the inner chamber of the front pump housing and rear pump housing inner chamber, cut off, hydraulic oil before and after making between the pump housing not there will be the phenomenon of mixing, thereby the front pump housing and the rear pump housing can use different types of hydraulic oil, the problem that also not there will be hydraulic oil to mix.
Claims (2)
1. oily duplicate gear oil pump is not gone here and there in front and back, it is characterized in that, comprises oil pump body, gear shaft, axle sleeve (4) and gear; Described axle sleeve (4) and gear all are sheathed on described gear shaft; Described oil pump comprises protecgulum (1), the front pump housing (5), front joining plate (6), rear joining plate (2), the rear pump housing (7) and bonnet (8), and described protecgulum (1), the front pump housing (5), front joining plate (6), rear joining plate (2), the rear pump housing (7) and bonnet (8) set gradually from left to right;
Described gear shaft comprises driving gear shaft and driven gear shaft, described driving gear shaft comprises front driving gear shaft (9) and rear drive gear axle (10), described driven gear shaft comprises front driven gear shaft (11) and rear driven gear shaft (16), and the right-hand member of described front driving gear shaft (9) is inserted among the described rear pump housing (7) inner chamber and the left end of front driving gear shaft (9) stretches out in outside the described rear pump housing (7);
The main aperture position of described front joining plate (6) and the adjacent setting of rear joining plate (2) and front joining plate (6) and rear joining plate (2) is provided with oil sealing chamber (17), in the oil sealing chamber (17) of described front joining plate (6) and in the oil sealing chamber (17) of rear joining plate (2), respectively is provided with an oil sealing (3); The right-hand member of described front driving gear shaft (9) extends to the right among the inner chamber of the described rear pump housing (7), and the right part of front driving gear shaft (9) is connected by internal spline with the left part of described rear drive gear axle (10).
2. oily duplicate gear oil pump is not gone here and there in front and back according to claim 1, it is characterized in that, described gear comprises front driving gear (12), rear drive gear (13), front driven gear (14) and rear driven gear (15);
Described front driving gear (12) is sheathed on described front driving gear shaft (9), described rear drive gear (13) is sheathed on described rear drive gear axle (10), it is upper that described front driven gear (14) is sheathed on described front driven gear shaft (11), and described rear driven gear (15) is sheathed on described rear driven gear shaft (16); Described front driving gear (12) and front driven gear (14) are meshed, and described rear drive gear (13) and rear driven gear (15) are meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497455.XU CN203384044U (en) | 2013-08-14 | 2013-08-14 | Duplicate gear oil pump for preventing oil staining of front and rear parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497455.XU CN203384044U (en) | 2013-08-14 | 2013-08-14 | Duplicate gear oil pump for preventing oil staining of front and rear parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384044U true CN203384044U (en) | 2014-01-08 |
Family
ID=49872547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320497455.XU Expired - Fee Related CN203384044U (en) | 2013-08-14 | 2013-08-14 | Duplicate gear oil pump for preventing oil staining of front and rear parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179228A (en) * | 2015-06-15 | 2015-12-23 | 安徽优源液压科技有限公司 | Double-channel hydraulic pump |
-
2013
- 2013-08-14 CN CN201320497455.XU patent/CN203384044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179228A (en) * | 2015-06-15 | 2015-12-23 | 安徽优源液压科技有限公司 | Double-channel hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20200814 |