CN212106250U - Transmission gear pump - Google Patents
Transmission gear pump Download PDFInfo
- Publication number
- CN212106250U CN212106250U CN201922370715.7U CN201922370715U CN212106250U CN 212106250 U CN212106250 U CN 212106250U CN 201922370715 U CN201922370715 U CN 201922370715U CN 212106250 U CN212106250 U CN 212106250U
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- CN
- China
- Prior art keywords
- ring gear
- pinion
- pinion shaft
- casing
- transmission gear
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Abstract
The utility model relates to a gear drive technical field, in particular to transmission gear pump. Including the casing and set up in inside ring gear of casing, be provided with the shroud on the casing, wear to be equipped with the pinion shaft among the ring gear, the pinion shaft with be provided with the pinion between the ring gear, the pinion with ring gear's meshing will casing internal partitioning is for oil transportation space and pressure space, discharge chamber among the pressure space carries out axial seal by the axial gasket, the pinion shaft outside is provided with the slip axle sleeve. The utility model discloses a discharge chamber in the pressure space carries out axial seal by the axial gasket for the pinion shaft not direct with pinion direct contact, thereby avoid the wearing and tearing of the bearing when the function, improve with this the utility model discloses a life, simultaneously, set up the gas tightness that can also increase the pressure space like this to improve the pressure value, increase power.
Description
Technical Field
The utility model relates to a gear drive technical field, in particular to transmission gear pump.
Background
The transmission gear pump is a rotary pump which transfers or pressurizes liquid by means of the change and movement of a working volume formed between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears. The pressure at the discharge port of the transmission gear pump is completely dependent on the amount of resistance at the pump outlet.
The transmission gear pump has the advantages of simple structure, wide rotating speed range, strong pollution resistance, wide application range and high cost performance, and is a hydraulic power element which has the widest application range and the largest use amount in various hydraulic machines at present. The hydraulic transmission gear pump is a hydraulic power element which converts mechanical energy into hydraulic energy through the change action of the volumes of a pair of meshing areas in a closed containing cavity and drives a hydraulic actuating element to do work. The method is widely applicable to various engineering machines, railway machines, road machines, construction machines, mining machines, energy machines and the like.
The hydraulic transmission gear pump system in the prior art has the disadvantages of unstable pressure, short service life of the pump, and easy damage and impracticality of the bearing of the pump.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that pressure is steady, long service life's transmission gear pump.
In order to solve the technical problem, the utility model discloses a scheme does:
the utility model provides a transmission gear pump, include the casing and set up in inside ring gear of casing, be provided with the shroud on the casing, wear to be equipped with the pinion shaft among the ring gear, the pinion shaft with be provided with the pinion between the ring gear, the pinion with ring gear's meshing will casing internal partitioning is for oil transportation space and pressure space, discharge chamber among the pressure space carries out axial seal by the axial gasket, the pinion shaft outside is provided with the slip axle sleeve.
Preferably, the mounting flange is arranged on the pinion shaft.
Preferably, the ring gear is provided with segments, and a segment support and a seal roller for supporting the segments.
Preferably, a stop pin is arranged between the fan-shaped body and the supporting body.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a discharge chamber in the pressure space carries out axial seal by the axial gasket for the pinion shaft not direct with pinion direct contact, thereby avoid the wearing and tearing of the bearing when the function, improve with this the utility model discloses a life, simultaneously, set up the gas tightness that can also increase the pressure space like this to improve the pressure value, increase power.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-2, the present invention provides a transmission gear pump, including a housing 1 and a ring gear 2 disposed inside the housing 1, the housing 1 is provided with a cover 9, a pinion shaft 3 is disposed in the ring gear 2, a pinion 4 is disposed between the pinion shaft 3 and the ring gear 2, the pinion 4 and the ring gear 2 are engaged to separate the inside of the housing 1 into an oil transportation space 5 and a pressure space 6, a discharge chamber in the pressure space 6 is axially sealed by an axial gasket 7, and a sliding shaft sleeve 8 is disposed outside the pinion shaft 3.
For the convenience of the installation of the utility model, the installation flange 10 is arranged on the pinion shaft 3.
In order to further improve the service life and the sealing performance of the present invention, the ring gear 2 is provided with the segments 11, and the segment support 12 and the seal roller 13 for supporting the segments 11.
In order to increase the utility effect and the service life of the present invention, a stop pin 14 is provided between the segment 11 and the support body 12. The purpose of this is primarily that the sector 11 and the sector support 12 are arranged in a pressure field, so that the resulting pressure is substantially absorbed by the retaining pin 14. Thereby further improving the service life of the utility model.
Specifically, the utility model discloses an oil absorption and oil extraction process of transmission gear pump are according to the pinion shaft clockwise rotation direction transmission ring gear of fluid dynamics installation, transmission gear pump fills fluid through the tooth side clearance of opening in the oil absorption space, pressure space is carried from the oil absorption space to fluid through the tooth side clearance between pinion and the ring gear, therefore, fluid discharges and carries pressure space from closed tooth side clearance, oil absorption space and pressure space and the gear engagement between ring gear and the pinion shaft separate, the quadrant and the sector supporter of transmission gear pump are arranged in the pressure field, consequently, the pressure that produces is born by the stop pin basically.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (4)
1. A transmission gear pump is characterized in that: including casing (1) and set up in inside ring gear (2) of casing (1), be provided with shroud (9) on casing (1), wear to be equipped with pinion shaft (3) in ring gear (2), pinion shaft (3) with be provided with pinion (4) between ring gear (2), pinion (4) with the meshing of ring gear (2) will casing (1) internal partitioning is for oil transportation space (5) and pressure space (6), the discharge chamber in pressure space (6) is carried out axial seal by axial gasket (7), the pinion shaft (3) outside is provided with slip axle sleeve (8).
2. The transmission gear pump of claim 1, wherein: the gear box is characterized by further comprising a mounting flange (10) arranged on the pinion shaft (3).
3. The transmission gear pump of claim 1, wherein: the ring gear (2) is provided with a sector (11), a sector support body (12) for supporting the sector (11) and a sealing roller (13).
4. The transmission gear pump of claim 3, wherein: a stop pin (14) is arranged between the fan-shaped body (11) and the supporting body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370715.7U CN212106250U (en) | 2019-12-25 | 2019-12-25 | Transmission gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370715.7U CN212106250U (en) | 2019-12-25 | 2019-12-25 | Transmission gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106250U true CN212106250U (en) | 2020-12-08 |
Family
ID=73625670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922370715.7U Active CN212106250U (en) | 2019-12-25 | 2019-12-25 | Transmission gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106250U (en) |
-
2019
- 2019-12-25 CN CN201922370715.7U patent/CN212106250U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |