CN203081746U - Novel gear shaft for gear pump - Google Patents
Novel gear shaft for gear pump Download PDFInfo
- Publication number
- CN203081746U CN203081746U CN 201320096511 CN201320096511U CN203081746U CN 203081746 U CN203081746 U CN 203081746U CN 201320096511 CN201320096511 CN 201320096511 CN 201320096511 U CN201320096511 U CN 201320096511U CN 203081746 U CN203081746 U CN 203081746U
- Authority
- CN
- China
- Prior art keywords
- shaft
- axis body
- gear shaft
- driving gear
- connection
- 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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Abstract
The utility model discloses a novel gear shaft for a gear pump. The novel gear shaft comprises a driving gear shaft and a spline connection shaft connected at the end of the driving gear shaft, wherein the driving gear shaft comprises a shaft body and a shaft body connection part formed integrally with the shaft body; the shaft body connection part is a polygonal column; a shaft body connection hole for being connected with the shaft body connection part is formed at one end of the spline connection shaft; the shape of the shaft body connection hole corresponds to that of the end face of the shaft body connection part; and key slots are distributed on the circumferential surface of the other end of the spline connection shaft. The novel gear shaft has the beneficial effects that through the gap generated by separate connection of the spline connection shaft and the driving gear shaft, automatic adjustment of axial and radial unbalanced forces of the gear shaft can be achieved so that the driving gear shaft is connected firmly and flexible connection of the universal adjustor is achieved; and as the connection part of the driving gear shaft and the spline connection shaft adopts the polygonal prism-shaped structure, the strength of the driving gear shaft is enhanced, so that the driving gear shaft can not be broken due to unusual conditions in the operation process of the gear pump, thus prolonging the service life of the product.
Description
Technical field
The utility model relates to a kind of axis body, relates in particular to a kind of new gear axle that is used in specially on the gear pump.
Background technique
The gear shaft that generally uses on gear pump at present is the integrated long structure, this major axis can stretch out the gear pump outside, gear shaft is positioned at the gear pump parts that the part of gear pump is used to that various gears are installed and is used, and gear shaft stretches out the outer part of gear pump and is used to connect external motive device.Mainly there is following shortcoming in the gear shaft of above-mentioned integral structure: in the course of the work, because various so gear shaft can bear axially and two kinds of external force radially, and then cause gear shaft to rock back and forth, long-term use can make the connection part of gear pump insecure, the serious gear pump that also can cause shakes, and its inner body is damaged unusually, even makes the gear shaft fracture, shorten the working life of gear shaft widely, be unfavorable for improving its utilization ratio.
The model utility content
Technical problem to be solved in the utility model provides a kind of simple in structure, gear pump new gear axle that can improve the pump shaft performance.
For solving the problems of the technologies described above, the technical solution of the utility model is: gear pump new gear axle comprises driving gear shaft and the spline coupling shaft that is connected described driving gear shaft end; Described driving gear shaft comprises axis body and the axis body joint integrally formed with described axis body, and described axis body joint is the polygonal cylinder; Described spline coupling shaft one end is provided with the axis body attachment hole that is used to connect described axis body joint, and the shape of described axis body attachment hole is corresponding with described axis body joint end surface shape, is distributed with keyway on the described spline coupling shaft the other end side face.
As a kind of improvement, described axis body joint is set to six prism structures, and described axis body attachment hole is set to six rib holes, and described axis body joint inserts to form in the described axis body attachment hole and is connected with a joggle.
Owing to adopted technique scheme, gear pump new gear axle, comprised driving gear shaft and the spline coupling shaft that is connected described driving gear shaft end; Described driving gear shaft comprises axis body and the axis body joint integrally formed with described axis body, and described axis body joint is the polygonal cylinder; Described spline coupling shaft one end is provided with the axis body attachment hole that is used to connect described axis body joint, and the shape of described axis body attachment hole is corresponding with described axis body joint end surface shape, is distributed with keyway on the described spline coupling shaft the other end side face; The beneficial effects of the utility model are: separate by spline coupling shaft and driving gear shaft and be connected the gap that produces, can realize adjusting automatically the axial and unbalanced force radially of gear shaft, driving gear shaft is connected firmly, has realized the flexible connection of universal regulated.And the attachment portion of driving gear shaft and spline coupling shaft has adopted polygon prismatic structures to strengthen the intensity of driving gear shaft, makes gear pump can not improve the working life of product because of unusual condition causes the driving gear axle fracture in the course of the work.
Description of drawings
Fig. 1 is that the utility model embodiment is installed in the side view in the gear pump;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is that the B-B of Fig. 2 is to sectional view;
Among the figure: the 1-driving gear shaft; The 11-axis body; 12-axis body joint; 2-spline coupling shaft.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment concrete structure of the present utility model is described once.
In conjunction with Fig. 1, Fig. 2 and shown in Figure 3, gear pump new gear axle comprises driving gear shaft 1 and the spline coupling shaft 2 that is connected described driving gear shaft 1 end; Described driving gear shaft 1 comprises axis body 11 and the axis body joint 12 integrally formed with described axis body 11, and described axis body joint 12 is the polygonal cylinder; Described spline coupling shaft 2 one ends are provided with the axis body attachment hole that is used to connect described axis body joint 12, and the end surface shape of the shape of described axis body attachment hole and described axis body joint 12 is corresponding, are distributed with keyway on the other end side face of described spline coupling shaft 2.Joint of axis body described in the present embodiment 12 and axis body attachment hole are set to polygon structure respectively; make both more firm when connecting; relative displacement can not appear each other; can realize better that both rotate synchronously; help eliminating driving gear shaft 1 because of rotating the asynchronous moment of torsion that produces, help protection driving gear shaft 1 in pump housing working procedure with spline coupling shaft 2.
The joint of axis body described in the present embodiment 12 is set to six prism structures, correspondingly, the axis body attachment hole also is set to six rib holes, described axis body joint 12 inserts to form in the described axis body attachment hole and is connected with a joggle, present embodiment is divided into driving gear shaft and spline coupling shaft two-part with the gear shaft of gear pump, and both realize being connected with a joggle by six prismatic axis body joints and axis body attachment hole, form the engagement type linkage structure of two shaft parts, connect simple, firm.
The utility model separates by spline coupling shaft and driving gear shaft and to be connected the gap that produces in the course of the work, can realize adjusting automatically gear shaft axially and unbalanced force radially.Spline coupling shaft transposition bearing on the throne is to radial imbalance force the time, therefore driving gear shaft can not move, thereby make gear pump not can because of the outside connect unreasonable or connection part insecure and vibrations occur, and cause inner body to damage unusually, thereby eliminated the harm that unbalanced force axial because of gear shaft and radially brings, utilized the spline coupling shaft to realize the flexible connection of universal regulated.And the attachment portion of driving gear shaft and spline coupling shaft has adopted the hexagon prismatic structures to strengthen the intensity of driving gear shaft, makes gear pump can not improve the working life of product because of unusual condition causes the driving gear axle fracture in the course of the work.
Claims (2)
1. gear pump new gear axle is characterized in that: comprise driving gear shaft and the spline coupling shaft that is connected described driving gear shaft end; Described driving gear shaft comprises axis body and the axis body joint integrally formed with described axis body, and described axis body joint is the polygonal cylinder; Described spline coupling shaft one end is provided with the axis body attachment hole that is used to connect described axis body joint, and the shape of described axis body attachment hole is corresponding with described axis body joint end surface shape, is distributed with keyway on the described spline coupling shaft the other end side face.
2. gear pump new gear axle as claimed in claim 1 is characterized in that: described axis body joint is set to six prism structures, and described axis body attachment hole is set to six rib holes, and described axis body joint inserts to form in the described axis body attachment hole and is connected with a joggle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096511 CN203081746U (en) | 2013-03-04 | 2013-03-04 | Novel gear shaft for gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096511 CN203081746U (en) | 2013-03-04 | 2013-03-04 | Novel gear shaft for gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081746U true CN203081746U (en) | 2013-07-24 |
Family
ID=48827588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320096511 Expired - Fee Related CN203081746U (en) | 2013-03-04 | 2013-03-04 | Novel gear shaft for gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081746U (en) |
-
2013
- 2013-03-04 CN CN 201320096511 patent/CN203081746U/en not_active Expired - Fee Related
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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: 20130724 Termination date: 20170304 |