CN212672045U - High-strength sleeved plunger for high-pressure pump - Google Patents
High-strength sleeved plunger for high-pressure pump Download PDFInfo
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- CN212672045U CN212672045U CN202020723804.5U CN202020723804U CN212672045U CN 212672045 U CN212672045 U CN 212672045U CN 202020723804 U CN202020723804 U CN 202020723804U CN 212672045 U CN212672045 U CN 212672045U
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- plunger rod
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- pressure pump
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Abstract
The utility model discloses a high-strength sleeved plunger for a high-pressure pump, which comprises a plunger rod and a ceramic sleeve, wherein the surface of the plunger rod and the inner wall surface of the ceramic sleeve are both arranged into a round platform shape, the ceramic sleeve is sleeved on the plunger rod, one end of the plunger rod is provided with a limiting platform, the other end of the plunger rod is provided with a limiting end cover, the axial direction of the limiting platform is also provided with a power connecting part, and the power connecting part is provided with a shaft hole; an adhesive layer is arranged between the ceramic sleeve and the plunger rod, a spiral adhesive storage groove is further formed in the surface of the plunger rod, an elastic sealing element is arranged between the limiting table and the end face of the ceramic sleeve, and the surface of the limiting end cover, which is located on one side of the plunger rod, is coated with glue and provided with a sealing ring. The utility model discloses the equipment laminating degree is high, and the wholeness is good, effectively improves bulk strength and life-span.
Description
Technical Field
The utility model relates to a high pressure water pump field, concretely relates to high strength suit formula plunger for high pressure pump.
Background
High pressure water pumps are accomplished by reciprocating a plunger within a plunger sleeve. When the plunger is located at the lower part, the water hole on the plunger sleeve is opened, the inner cavity of the plunger sleeve is communicated with the water channel in the pump body, and water is quickly filled in the water chamber. When the cam is pressed against the roller of the roller body, the plunger is lifted. The plunger is moved upward from the start of the plunger until the water hole is stopped by the upper end surface of the plunger. During this time, water is forced out of the water chamber and into the water channel due to the movement of the plunger. This lift is called pre-stroke. When the plunger piston blocks the water hole, the water pressing process is started. The plunger piston moves upwards, and the water pressure in the water chamber rises sharply. When the pressure exceeds the elastic force of the water outlet valve and the upper water pressure, the water outlet valve is jacked open, and the water pressure inlet pipe is sent to the water sprayer.
The existing plunger is generally a connecting structure formed by sleeving a ceramic sleeve structure on a cylinder, the precision of the inner diameter of the ceramic sleeve structure and the outer diameter of the cylinder needs to be very high during assembly, otherwise the assembled axis is influenced, the inner diameter of the ceramic sleeve structure can be larger than the outer diameter of the cylinder, but the ceramic sleeve is free of support during radial stress, and damage is easy to occur.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a high strength suit formula plunger for high pressure pump, the equipment laminating degree is high, and the wholeness is good, effectively improves bulk strength and life-span.
In order to solve the technical problem, the utility model provides a high strength nested plunger for high pressure pump, including plunger rod and ceramic bushing, plunger rod surface and ceramic bushing internal wall all set up to the round platform type, the ceramic bushing cover is established on the plunger rod, plunger rod one end is provided with spacing platform, and the other end is provided with spacing end cover, still be provided with power connecting portion in spacing platform axial, be provided with the shaft hole on the power connecting portion;
the sealing device is characterized in that a viscose layer is arranged between the ceramic sleeve and the plunger rod, a spiral glue storage groove is further formed in the surface of the plunger rod, an elastic sealing element is arranged between the limiting table and the end face of the ceramic sleeve, and the surface of the limiting end cover, which is located on one side of the plunger rod, is coated with glue and provided with a sealing ring.
Furthermore, an external thread column is arranged at one end, located at the limiting end cover, of the plunger rod, and an internal thread groove matched with the external thread column and screwed fixedly is arranged on the limiting end cover corresponding to the external thread column.
Furthermore, a plurality of rotary grooves are formed in the limiting end cover.
Furthermore, the power connecting part is provided with a rotation stopping part, and the shaft hole is formed in the rotation stopping part.
Further, the number of the shaft holes is 2, and the shaft holes are respectively arranged towards the X-axis direction and the Y-axis direction.
Furthermore, the ceramic sleeve is formed by sequentially connecting a plurality of ceramic rings.
Further, two adjacent ceramic rings are connected through glue.
Furthermore, the plunger rod and the limiting table, namely the power connecting part, are integrally formed and made of steel.
The utility model has the advantages that:
1. the circular truncated cone-shaped structure can enable the inner wall of the ceramic sleeve to be stably attached to the plunger rod and be positioned on the same axis, and quality and sealing performance after assembly are guaranteed.
2. The spiral glue storage groove formed in the plunger rod can effectively store glue, and the problem that the gluing effect is reduced due to removal of glue after extrusion can be avoided in the sleeving and assembling process.
3. The plunger rod and the ceramic sleeve are matched with the axial two ends through the circular truncated cone-shaped structure surface and the limiting end covers for limiting, effective fixation is achieved, the ceramic sleeve is large in contact surface with the plunger rod, stress is uniform, and overall strength can be greatly improved.
4. The elastic sealing element and the sealing ring further improve the sealing effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic cross-sectional structure of the present invention;
fig. 3 is a partial schematic view of a plunger rod of the present invention;
fig. 4 is a schematic view of a multi-axis hole of the present invention;
fig. 5 is a schematic diagram of the plunger of the ceramic sheath formed by a plurality of ceramic rings according to the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Refer to fig. 1 to 3 shown, the utility model discloses a high strength suit formula plunger for high pressure pump, including plunger rod 1 and ceramic cover 2, plunger rod surface and ceramic cover internal face all set up to round platform type 3, the ceramic cover is established on the plunger rod, because the design of round platform type structure, plunger rod surface and ceramic cover internal face spacing contact on the axial, the surface comparison of establishing with current parallel cover, it is more abundant to have, inseparabler laminating effect, reduce the clearance between plunger rod and the ceramic cover, make the leakproofness of whole ceramic plunger obtain guaranteeing, and have the spacing effect of axial atress, and current structure then blocks spacingly through the ceramic cover terminal surface, this application lifting surface is big, the equipment is more stable, difficult cracked, consequently also can effectively guarantee the structural strength of whole ceramic plunger. After the assembly, the ceramic sleeve also has self-adaptive centering capacity, the axis consistency of the plunger rod and the ceramic sleeve is effectively ensured, the assembly difficulty is reduced, and the assembly precision is improved.
One end of the plunger rod is provided with a limiting table 4, the other end of the plunger rod is provided with a limiting end cover 5, the limiting end cover limits the ceramic sleeve to move and separate, the axial direction of the limiting table is also provided with a power connecting part 6, the power connecting part is provided with a shaft hole 7, and power transmission is realized through the shaft hole; in order to ensure the connection strength and the waterproof performance, a viscose layer 8 is arranged between the ceramic sleeve and the plunger rod, a spiral glue storage groove 9 is also formed in the surface of the plunger rod, the glue can be effectively locked by the spiral glue storage groove, and the connection firmness of the viscose layer is ensured in the assembly process; an elastic sealing element 10 is arranged between the limiting table and the end face of the ceramic sleeve, and can be compressed after the ceramic sleeve is sleeved in, so that a sealing effect is achieved, glue is coated on the surface of one side, located on the plunger rod, of the limiting end cover, a sealing ring 11 is installed on the surface of one side, so that effective sealing is achieved at two ends of the ceramic sleeve, and the use performance is improved. The plunger rod and the limiting table are integrally formed or connected in a welding mode, namely the power connecting part, and the plunger rod and the limiting table are made of steel, so that the strength is guaranteed.
The plunger rod is provided with an external thread column 12 at one end of the limiting end cover, an internal thread groove matched with the screwing tool is formed in the limiting end cover corresponding to the external thread column, the limiting end cover can be effectively screwed and fixed, a plurality of rotating grooves 13 are formed in the limiting end cover for ensuring convenience of screwing operation, and a wrench or a limiting device is convenient to intervene in operation. Be provided with on the power connecting portion and end commentaries on classics portion 14, the rotatory recess of cooperation realizes fast assembly and revolves solid effect, the simple operation, and the shaft hole setting is in ending commentaries on classics portion, and the shaft hole position is flat, and the shaft of being convenient for links the unit mount, reduces the shaft and links the unit structure volume.
In one embodiment, referring to fig. 4, the number of the shaft holes is 2, and the shaft holes are respectively arranged towards the X-axis direction and the Y-axis direction. Two shaft holes of the cross structure can be applied to a horizontal pump and a vertical pump, the switching is convenient, and the working efficiency is greatly improved. One of them shaft hole is located the power connecting portion of rotation stopping portion one side, offers the back in the shaft hole, effectively guarantees that bulk strength is not influenced.
In one embodiment, as shown in fig. 5, the ceramic sleeve is composed of a plurality of ceramic rings 15 connected in series. And two adjacent ceramic rings are connected through glue. In the use, can utilize the cushioning effect between the ceramic ring that bonds each other to offset some external force to the fragile problem of effectual reduction pottery.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. The high-strength sleeved plunger for the high-pressure pump is characterized by comprising a plunger rod and a ceramic sleeve, wherein the surface of the plunger rod and the inner wall surface of the ceramic sleeve are both in a circular truncated cone shape, the ceramic sleeve is sleeved on the plunger rod, one end of the plunger rod is provided with a limiting table, the other end of the plunger rod is provided with a limiting end cover, the axial direction of the limiting table is also provided with a power connecting part, and the power connecting part is provided with a shaft hole;
the sealing device is characterized in that a viscose layer is arranged between the ceramic sleeve and the plunger rod, a spiral glue storage groove is further formed in the surface of the plunger rod, an elastic sealing element is arranged between the limiting table and the end face of the ceramic sleeve, and the surface of the limiting end cover, which is located on one side of the plunger rod, is coated with glue and provided with a sealing ring.
2. The high-strength sleeved plunger for the high-pressure pump according to claim 1, wherein an external threaded column is arranged at one end of the plunger rod, which is located at the limiting end cover, and an internal threaded groove matched with and screwed into the limiting end cover is arranged at the corresponding external threaded column.
3. The high-strength nested plunger for a high-pressure pump according to claim 2, wherein the stopper cap is provided with a plurality of rotation grooves.
4. The high-strength sleeved plunger for a high-pressure pump according to claim 3, wherein the power connection portion is provided with a rotation stop portion, and the shaft hole is provided in the rotation stop portion.
5. The high-strength nested plunger for a high-pressure pump according to claim 1, wherein the number of the shaft holes is 2, and the shaft holes are respectively arranged in the X-axis direction and the Y-axis direction.
6. The high-strength nested plunger for a high-pressure pump according to claim 1, wherein the ceramic bushing is formed by sequentially connecting a plurality of ceramic rings.
7. The high-strength nested plunger for a high-pressure pump according to claim 6, wherein adjacent two ceramic rings are connected by glue.
8. The high-strength sleeved plunger for the high-pressure pump according to claim 1, wherein the plunger rod and the limiting platform, i.e. the power connection part, are integrally formed and made of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020723804.5U CN212672045U (en) | 2020-05-06 | 2020-05-06 | High-strength sleeved plunger for high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020723804.5U CN212672045U (en) | 2020-05-06 | 2020-05-06 | High-strength sleeved plunger for high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672045U true CN212672045U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020723804.5U Active CN212672045U (en) | 2020-05-06 | 2020-05-06 | High-strength sleeved plunger for high-pressure pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN212672045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198298A (en) * | 2021-10-25 | 2022-03-18 | 北京天玛智控科技股份有限公司 | Crosshead piston assembly and plunger pump with same |
| CN114320805A (en) * | 2021-12-21 | 2022-04-12 | 北京华德液压工业集团有限责任公司 | Plunger structure of axial hydraulic pump and axial hydraulic pump comprising same |
| CN115559895A (en) * | 2022-11-21 | 2023-01-03 | 合肥精创科技有限公司 | Novel ceramic plunger and assembling method and equipment thereof |
-
2020
- 2020-05-06 CN CN202020723804.5U patent/CN212672045U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198298A (en) * | 2021-10-25 | 2022-03-18 | 北京天玛智控科技股份有限公司 | Crosshead piston assembly and plunger pump with same |
| CN114198298B (en) * | 2021-10-25 | 2024-08-06 | 北京天玛智控科技股份有限公司 | Crosshead plunger assembly and plunger pump with same |
| CN114320805A (en) * | 2021-12-21 | 2022-04-12 | 北京华德液压工业集团有限责任公司 | Plunger structure of axial hydraulic pump and axial hydraulic pump comprising same |
| CN115559895A (en) * | 2022-11-21 | 2023-01-03 | 合肥精创科技有限公司 | Novel ceramic plunger and assembling method and equipment thereof |
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