CN218408217U - Bushing type spline coupler and double gear pump - Google Patents
Bushing type spline coupler and double gear pump Download PDFInfo
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- CN218408217U CN218408217U CN202222790537.5U CN202222790537U CN218408217U CN 218408217 U CN218408217 U CN 218408217U CN 202222790537 U CN202222790537 U CN 202222790537U CN 218408217 U CN218408217 U CN 218408217U
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- gear pump
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Abstract
The utility model relates to an inlay set type spline shaft coupling and a duplex gear pump, the inlay set type spline shaft coupling comprises a shaft coupling main body piece and a shaft coupling external member; a first spline hole is formed in one end surface of the coupler main body piece, an installation inner hole is formed in the other end surface of the coupler main body piece, the coupler sleeve piece is installed in the installation hole of the coupler main body piece in an interference fit mode, a second spline hole penetrates through the coupler sleeve piece, and the diameter of the second spline hole is smaller than that of the first spline hole; a jacking screw hole communicated with the first spline hole is formed in the side wall of the coupler main body piece, and cylindrical pin mounting holes are formed in the side wall of the coupler main body piece and the side wall of the coupler sleeve piece corresponding to the second spline hole; and a jacking screw is arranged in the jacking screw hole, and a cylindrical pin is arranged in the cylindrical pin mounting hole. The duplicate gear pump comprises a front gear pump, a rear gear pump and a coupler. The utility model discloses a shaft coupling adopts split type structure, solves the difficult problem of processing of shaft coupling internal spline, has easy processing, and simple structure is compact, uses reliable characteristics.
Description
Technical Field
The utility model relates to a technical field of shaft coupling especially relates to a bushing type spline shaft coupling and duplicate gear pump.
Background
When the pump is connected around the duplex gear pump, the spline diameter of pump is big after the preceding pump spline diameter ratio, can not link up, adopts integral shaft coupling to connect now more, can only use the mode processing of inserting the spline, because the modulus is little, the product inner chamber is little, and the spline slotting tool is thinner, and the rigidity is than relatively poor, leads to the processing difficulty, and a lot of cutters all can't normal use.
Disclosure of Invention
The utility model discloses aim at solving prior art not enough, and provide a bushing type spline shaft coupling and duplicate gear pump.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a bushing type spline coupler comprises a coupler main body piece and a coupler sleeve piece;
a first spline hole is formed in one end face of the coupler main body part, an installation inner hole is formed in the other end face of the coupler main body part, the first spline hole and the installation inner hole are communicated with each other, the coupler sleeve part is installed in the installation hole of the coupler main body part in an interference fit mode, a second spline hole penetrates through the coupler sleeve part, and the diameter of the second spline hole is smaller than that of the first spline hole;
a jacking screw hole communicated with the first spline hole is formed in the side wall of the coupler main body piece, and cylindrical pin mounting holes are formed in the side wall of the coupler main body piece and the side wall of the coupler sleeve piece corresponding to the second spline hole; and a jacking screw is arranged in the jacking screw hole, and a cylindrical pin is arranged in the cylindrical pin mounting hole in an interference fit manner.
A retainer ring groove is formed in the lower end of the inner wall of a cylindrical pin mounting hole of the coupler main body piece, and a hole elastic retainer ring is arranged outside the end face of the cylindrical pin in the retainer ring groove.
The inner end of the jacking screw is of a conical head structure.
The edges of two end faces of the main body part of the shaft coupling are provided with chamfer structures.
The edges of two end faces of the coupling kit are provided with chamfer structures.
The utility model provides a duplicate gear pump, includes preceding gear pump and back gear pump, and shaft coupling main part sets up in the end cover of preceding gear pump, and the drive shaft one end in the preceding gear pump is installed in the first spline hole of shaft coupling main part, and the second spline hole at the shaft coupling external member is installed to the output shaft one end of back gear pump.
The beneficial effects of the utility model are that: the utility model discloses a shaft coupling adopts split type structure, through the cylindric lock connection, can choose for use the wire-electrode cutting to process first splined hole on shaft coupling main part spare, process second splined hole on the shaft coupling external member, solves the difficult problem of processing of shaft coupling internal spline, has easy processing, and simple structure is compact, uses reliable characteristics.
Drawings
Fig. 1 is a schematic structural view of the insert-type spline coupling of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
fig. 3 is an exploded view of the insert type spline coupler in one direction;
fig. 4 is an exploded view of the bushing type spline coupler in another direction;
FIG. 5 is a perspective view of the present invention with a duplicate gear pump;
FIG. 6 is a cross-sectional view of the double-geared pump of the present invention;
FIG. 7 is an enlarged view of B in FIG. 6;
in the figure: 1-a coupling body member; 2-a coupling kit; 3-a first splined bore; 4-second splined hole; 5-tightly jacking the screw hole; 6-cylindrical pin mounting holes; 7-tightening the screw; 8-cylindrical pin; 9-a retainer groove; 10-circlip for hole; 11-front gear pump; 12-rear gear pump;
the following detailed description will be made with reference to the accompanying drawings in conjunction with embodiments of the present invention.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
as shown in fig. 1 to 7, a bushing spline coupler includes a coupler body piece 1 and a coupler sleeve piece 2;
a first spline hole 3 is formed in one end surface of the coupler main body part 1, an installation inner hole is formed in the other end surface of the coupler main body part 1, the first spline hole 3 and the installation inner hole are communicated with each other, the coupler sleeve part 2 is installed in the installation hole of the coupler main body part 1 in an interference fit mode, the reliability of connection can be guaranteed by adopting a liquid nitrogen cold installation mode, a second spline hole 4 penetrates through the coupler sleeve part 2, and the diameter of the second spline hole 4 is smaller than that of the first spline hole 3;
a jacking screw hole 5 communicated with the first spline hole 3 is formed in the side wall of the coupler main body part 1, and a cylindrical pin mounting hole 6 is formed in the side wall of the coupler main body part 1 and the side wall of the coupler sleeve part 2 corresponding to the second spline hole 4; install in the tight screw hole of top 5 tight screw 7, can prevent that the shaft coupling from installing cylindric lock 8 because of the phenomenon that the axial float is deviate from, interference fit installs cylindric lock in the cylindric lock mounting hole 6, and cylindric lock 8 plays the effect of location and transmission moment of torsion.
A retainer ring groove 9 is formed in the lower end of the inner wall of a cylindrical pin mounting hole 6 of the coupler main body part 1, and a hole elastic retainer ring 10 is arranged outside the end face of the cylindrical pin 8 in the retainer ring groove 9, so that the cylindrical pin 8 can be prevented from falling off, and the reliability is improved.
The inner end of the jacking screw 7 is of a conical head structure.
The edges of the two end faces of the main coupler part 1 are provided with chamfer structures.
The edges of the two end faces of the coupling kit 2 are provided with chamfer structures.
The utility model discloses a shaft coupling adopts split type structure, connects through cylindric lock 8, can choose for use wire-electrode cutting to process first splined hole 3 on shaft coupling main part 1, process second splined hole 4 on shaft coupling external member 2, solves the difficult problem of processing of shaft coupling internal spline, has easy processing, and simple structure is compact, uses reliable characteristics.
The utility model provides a duplicate gear pump, includes preceding gear pump 11 and back gear pump 12, and shaft coupling main part 1 sets up in the end cover of preceding gear pump 11, and the drive shaft one end in preceding gear pump 11 is installed in the first splined hole 3 of shaft coupling main part 1, and the output shaft one end of back gear pump 12 is installed in the second splined hole 4 of shaft coupling external member 2. The spline connection has the characteristics of high centering precision and large transmission torque.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (6)
1. The bushing type spline coupler is characterized by comprising a coupler main body piece (1) and a coupler sleeve piece (2);
a first spline hole (3) is formed in one end surface of the coupler main body piece (1) in an inward mode, an installation inner hole is formed in the other end surface of the coupler main body piece in an inward mode, the first spline hole (3) and the installation inner hole are communicated with each other, the coupler sleeve piece (2) is installed in the installation hole of the coupler main body piece (1) in an interference fit mode, a second spline hole (4) penetrates through the coupler sleeve piece (2), and the diameter of the second spline hole (4) is smaller than that of the first spline hole (3);
a jacking screw hole (5) communicated with the first spline hole (3) is formed in the side wall of the coupler main body part (1), and cylindrical pin mounting holes (6) are formed in the side wall of the coupler main body part (1) and the side wall of the coupler sleeve part (2) corresponding to the second spline hole (4); a jacking screw (7) is installed in the jacking screw hole (5), and a cylindrical pin (8) is installed in the cylindrical pin installation hole (6) in an interference fit manner.
2. The bushing spline coupling according to claim 1, characterized in that, the lower end of the inner wall of the cylindrical pin mounting hole (6) of the coupling body (1) is provided with a retainer groove (9), and a circlip (10) for a hole is arranged outside the end surface of the cylindrical pin (8) in the retainer groove (9).
3. A splined insert coupling according to claim 2, wherein the inner end of the tightening screw (7) is of conical design.
4. A sleeve-type spline coupling according to claim 3, characterized in that the coupling body (1) is provided with chamfers at both end face edges.
5. The bushing spline coupling according to claim 4, characterized in that the coupling sleeve (2) has chamfers at the edges of its two end faces.
6. A double gear pump with a sleeve-type spline coupling according to claim 4, characterized by comprising a front gear pump (11) and a rear gear pump (12), wherein the coupling body (1) is arranged in an end cover of the front gear pump (11), one end of a driving shaft in the front gear pump (11) is arranged in the first splined hole (3) of the coupling body (1), and one end of an output shaft of the rear gear pump (12) is arranged in the second splined hole (4) of the coupling sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222790537.5U CN218408217U (en) | 2022-10-24 | 2022-10-24 | Bushing type spline coupler and double gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222790537.5U CN218408217U (en) | 2022-10-24 | 2022-10-24 | Bushing type spline coupler and double gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218408217U true CN218408217U (en) | 2023-01-31 |
Family
ID=85002443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222790537.5U Active CN218408217U (en) | 2022-10-24 | 2022-10-24 | Bushing type spline coupler and double gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218408217U (en) |
-
2022
- 2022-10-24 CN CN202222790537.5U patent/CN218408217U/en active Active
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