CN201884277U - High-pressure gear oil pump - Google Patents
High-pressure gear oil pump Download PDFInfo
- Publication number
- CN201884277U CN201884277U CN 201020605331 CN201020605331U CN201884277U CN 201884277 U CN201884277 U CN 201884277U CN 201020605331 CN201020605331 CN 201020605331 CN 201020605331 U CN201020605331 U CN 201020605331U CN 201884277 U CN201884277 U CN 201884277U
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- CN
- China
- Prior art keywords
- bonnet
- pump housing
- positioning pin
- pump
- oil
- 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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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a high-pressure gear oil pump. The high-pressure gear oil pump is characterized by adopting a three-section structure consisting of a front cover, a rear cover and a pump body, a through-type positioning pin is arranged on the pump body, penetrates through the pump body axially, extends on the front end surface and the rear end surface of the pump body to form a front positioning pin post and a rear cover positioning pin post which are coaxial with each other and connects the front cover with the rear cover by the aid of the front cover positioning pin post and the rear positioning pin post, all oil openings are disposed on the rear cover and respectively are a lateral oil inlet opening, a lateral oil outlet opening, or an end oil inlet opening and an end oil outlet opening, wherein the lateral oil inlet opening is positioned on one side of the rear cover, the lateral oil outlet opening is positioned on the other side of the rear cover, and the end oil inlet opening and the end oil outlet opening are positioned on the end surfaces of the rear cover. The high-pressure gear oil pump can adopt an external connection mode with a rear inlet and a rear outlet, and can also adopt an external connection mode with a lateral inlet and a lateral outlet.
Description
Technical field
The utility model relates to the gear oil pump as the hydraulic system dynamical element, is applicable to industries such as lifting handling machinery, road building machine, environmental protection machinery, light industry and machinery.
Background technique
Shown in Figure 4, in the prior art, the pump housing 4 of gear oil pump and protecgulum 2, the pump housing 4 and bonnet 5 are to position connection by short positioning dowel 3, existing problem is on the both ends of the surface of the pump housing 4 during the processing positioning pin hole, coaxality and position accuracy be difficult to guarantee, thereby be difficult to guarantee the positional accuracy of spindle hole on gear hole on the pump housing 4 and the protecgulum 2, increased the radial force of driving gear 1 thus, reduce the working life of gear oil pump, reduced product performance.
In the prior art,, can only be to adopt side to advance the outer connection mode that side goes out or the outer connection mode of last-in, last-out on the connecting mode of oil inlet and outlet, have significant limitation at same pump.
The model utility content
The utility model is for avoiding above-mentioned existing in prior technology deficiency, provide a kind of simple in structure, the high pressure gear oil pump of unique outlook, in the hope of on the pump housing, adopting the anti-offset structure of penetration type locating stud, to improve the coaxality and the positional accuracy of locating stud, thereby the positional accuracy of spindle hole on gear hole on the assurance pump housing and the protecgulum, make the suffered radial force of driving gear reduce to minimum, increase the working life of gear oil pump, enhance product performance, and on same pump, realize both can having adopted side to advance the outer connection mode that outer connection mode that side goes out also can adopt last-in, last-out.
The utility model technical solution problem adopts following technological scheme:
The utility model gear oil pump has a pair of intermeshing driving gear and driven gear, constitutes pump case with protecgulum, bonnet and the pump housing, and its structural feature is:
Described protecgulum, bonnet and the pump housing adopt three stage structure, the penetration type locating stud is set on the described pump housing, described penetration type locating stud runs through the pump housing vertically and extend to form coaxial protecgulum positioning pin column and bonnet positioning pin column on the front-end face of the pump housing and ear end face, is connected protecgulum and bonnet with described protecgulum positioning pin column with the bonnet positioning pin column respectively;
Each hydraulic fluid port is set on described bonnet, and described each hydraulic fluid port is respectively: be positioned at the sidepiece filler opening of bonnet one side, be positioned at the sidepiece oil outlet of bonnet opposite side, or be positioned at end filler opening and end oil outlet on the end face of bonnet; Logical oil pocket road is set in described bonnet, is communicated with the inner chamber formation of the pump housing at each hydraulic fluid port with described logical oil pocket road.
The structural feature of the utility model gear oil pump also is: be arranged at described bonnet on the end face of inner chamber of the pump housing bearing hole is set, driving gear and driven gear are supported in the bearing hole of described bonnet.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model adopts the penetration type locating stud, thoroughly eliminated skew, improved the positional accuracy of positioning pin hole, thereby guaranteed the positional accuracy of spindle hole on gear hole on the pump housing and the protecgulum, make the suffered radial force of driving gear reduce to minimum, increase the working life of gear oil pump, reduced difficulty of processing, improved product performance.
2, the utility model both can adopt the outer connection mode of last-in, last-out, also can adopt side to advance the outer connection mode that side goes out, and made its application more flexible, can satisfy the different needs of user, and adaptability is strong.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model bonnet floor map;
Fig. 2 a advances the bonnet side schematic view that side goes out structure for the utility model side;
Fig. 2 b is the A-A generalized section of Fig. 2 a;
Fig. 3 a is the bonnet end view of the utility model last-in, last-out structure;
Fig. 3 b is the B-B generalized section of Fig. 3 a;
Fig. 4 is a prior art middle gear oil pump structure schematic representation.
Number in the figure: 1 driving gear, 2 protecgulums, 3 locating studs, 4 pump housings, 5 bonnets, 6 driven gears, 7 sidepiece filler openings, 8 sidepiece oil outlets, 9 end filler openings, 10 end oil outlets, 11 logical oil pocket roads, 12 bearing holes.
Embodiment
Referring to Fig. 1, Fig. 2, present embodiment is to constitute pump case with protecgulum 2, bonnet 5 and the pump housing 4, has a pair of intermeshing driving gear 1 and driven gear 6 in pump case;
Shown in Figure 1, protecgulum 2, bonnet 5 and the pump housing 4 adopt three stage structure in the present embodiment, penetration type locating stud 3 is set on the pump housing 4, penetration type locating stud 3 runs through the pump housing 4 vertically and extend to form coaxial protecgulum positioning pin column and bonnet positioning pin column on the front-end face of the pump housing 4 and ear end face, is connected protecgulum 2 and bonnet 5 with the bonnet locating stud with the protecgulum locating stud respectively; This anti-offset structure has effectively improved the positional accuracy of positioning pin hole, guarantees the positional accuracy of spindle hole on gear hole on the pump housing and the protecgulum, and the suffered radial force of driving gear is reduced greatly, increased gear oil pump working life, enhance product performance.
In the present embodiment, each hydraulic fluid port is set on bonnet 5, is respectively: sidepiece filler opening that is positioned at bonnet 5 one sides 7 shown in figure Fig. 2 a and Fig. 2 b and the sidepiece oil outlet 8 that is positioned at bonnet 5 opposite sides; Or end filler opening 9 on the end face that is positioned at bonnet 5 shown in Fig. 3 a and Fig. 3 b and end oil outlet 10; Logical oil pocket road 11 is set in bonnet 5, is communicated with the inner chamber formation of the pump housing 4 at each hydraulic fluid port with logical oil pocket road 11.This form makes this oil pump both can adopt the outer connection mode of last-in, last-out, also can adopt side to advance the outer connection mode that side goes out, and satisfies different requirements of customers, and adaptability is strong.
In concrete the enforcement, be arranged at bonnet 5 on the end face of inner chamber of the pump housing bearing hole 12 is set, driving gear 1 and driven gear 6 are supported in the bearing hole 12 of bonnet 5, this structural type makes gear oil pump compact structure more, reduced installing space, simultaneously also effectively reduce axial dimension, reduce production costs.
Claims (2)
1. a high pressure gear oil pump has a pair of intermeshing driving gear (1) and driven gear (6), constitutes pump case with protecgulum (2), bonnet (5) and the pump housing (4), it is characterized in that:
Described protecgulum (2), bonnet (5) and the pump housing (4) adopt three stage structure, penetration type locating stud (3) is set on the described pump housing (4), described penetration type locating stud (3) runs through the pump housing (4) vertically and extend to form coaxial protecgulum positioning pin column and bonnet positioning pin column on the front-end face of the pump housing (4) and ear end face, is connected protecgulum (2) and bonnet (5) with the bonnet positioning pin column with described protecgulum positioning pin column respectively;
On described bonnet (5), each hydraulic fluid port is set, described each hydraulic fluid port is respectively: the sidepiece filler opening (7) that is positioned at bonnet (5) one sides, be positioned at the sidepiece oil outlet (8) of bonnet (5) opposite side, or be positioned at end filler opening (9) and end oil outlet (10) on the end face of bonnet (5); Logical oil pocket road (11) is set in described bonnet (5), is communicated with the inner chamber formation of the pump housing (4) at each hydraulic fluid port with described logical oil pocket road (11).
2. high pressure gear oil pump according to claim 1, it is characterized in that: be arranged at described bonnet (5) on the end face of inner chamber of the pump housing (4) bearing hole (12) is set, driving gear (1) and driven gear (6) are supported in the bearing hole (12) of described bonnet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020605331 CN201884277U (en) | 2010-11-12 | 2010-11-12 | High-pressure gear oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020605331 CN201884277U (en) | 2010-11-12 | 2010-11-12 | High-pressure gear oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884277U true CN201884277U (en) | 2011-06-29 |
Family
ID=44181817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020605331 Expired - Fee Related CN201884277U (en) | 2010-11-12 | 2010-11-12 | High-pressure gear oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968052A (en) * | 2010-11-12 | 2011-02-09 | 合肥长源液压件有限责任公司 | High-pressure gear oil pump |
-
2010
- 2010-11-12 CN CN 201020605331 patent/CN201884277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968052A (en) * | 2010-11-12 | 2011-02-09 | 合肥长源液压件有限责任公司 | High-pressure gear oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Dangtu Road, Yaohai Industrial Park, latitude D 230011 Hefei Road, Anhui Province Patentee after: Hefei Changyuan Hydraulics Co., Ltd. Address before: Dangtu Road, Yaohai Industrial Park, latitude D 230011 Hefei Road, Anhui Province Patentee before: Hefei Changyuan Hydraulics Co., Ltd. |
|
| 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: 20110629 Termination date: 20171112 |