CN215998257U - Eccentric plunger structure of hydraulic pipe fitting processing tool - Google Patents
Eccentric plunger structure of hydraulic pipe fitting processing tool Download PDFInfo
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- CN215998257U CN215998257U CN202121711866.5U CN202121711866U CN215998257U CN 215998257 U CN215998257 U CN 215998257U CN 202121711866 U CN202121711866 U CN 202121711866U CN 215998257 U CN215998257 U CN 215998257U
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- plunger
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- check valve
- hydraulic pipe
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- 239000003921 oil Substances 0.000 claims abstract description 86
- 238000003754 machining Methods 0.000 claims description 20
- 239000000346 nonvolatile oil Substances 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a hydraulic pipe fitting processing tool, which provides an eccentric plunger piston structure of the hydraulic pipe fitting processing tool with compact structure, which can improve the flow passage area outside an oil inlet check valve, ensure smooth flow of hydraulic oil and high oil inlet efficiency, and solves the technical problems of narrow flow passage area outside the oil inlet check valve, increased oil absorption resistance, reduced processing efficiency and the like caused by smaller clearance between the oil inlet check valve and an oil storage ring of the hydraulic pipe fitting processing tool in the prior art. The surface of the body far away from the pressure relief cavity forms a second section, an oil inlet one-way valve is fixedly embedded in the first section, and the oil inlet one-way valve is communicated with the plunger cavity.
Description
Technical Field
The utility model relates to a hydraulic pipe fitting machining tool, in particular to an eccentric plunger piston structure of a hydraulic pipe fitting machining tool, which is compact in structure, can greatly improve the area of a flow passage outside an oil inlet check valve, ensures that hydraulic oil can keep smooth when entering the oil inlet check valve, and is high in oil inlet efficiency.
Background
The existing hydraulic pipe fitting processing tools, such as a hydraulic pipe expander, a hydraulic pipe press and the like, wherein a hydraulic mechanism is a key component of the whole machine, and the layout of relevant parts, such as a plunger, a pressure release valve, an oil inlet one-way valve and the like, which form the hydraulic mechanism directly influences the size and the performance of the whole machine. The plunger in the existing hydraulic pipe fitting processing tool is usually arranged on the axis of a pump body, so that the whole machine is large in size and heavy in weight, and the portable purpose cannot be realized.
Disclosure of Invention
The utility model mainly provides an eccentric plunger structure of a hydraulic pipe fitting machining tool, which has a compact structure, can greatly improve the flow passage area outside an oil inlet one-way valve, ensures that hydraulic oil can keep smooth when entering the oil inlet one-way valve, and has high oil inlet efficiency, and solves the technical problems that the flow passage area outside the oil inlet one-way valve is narrow and small, the oil absorption resistance of the oil inlet one-way valve is increased, the machining efficiency is reduced and the like due to a small gap between the oil inlet one-way valve and an oil storage ring of the hydraulic pipe fitting machining tool in the prior art.
Another object of the utility model is to: the eccentric plunger structure of the hydraulic pipe fitting machining tool can balance the gravity center of a body, reduce feeding vibration and ensure the machining performance and quality of an expansion pipe, and solves the technical problems that the gravity center of the body is deviated due to a pressure release valve and an oil inlet one-way valve in the prior art, the feeding vibration is large, the machining performance and the quality are influenced and the like
The technical problem of the utility model is mainly solved by the following technical scheme: the utility model provides a hydraulic pressure pipe fitting machining tool's eccentric plunger structure, includes the body and locates the drive chamber of body front end, and the body that the drive chamber bottom surface corresponds outwards extends and forms plunger chamber and pressure release chamber, and the plunger intracavity is equipped with the plunger, is equipped with the relief valve in the pressure release intracavity, and the body dustcoat outside plunger chamber and the pressure release chamber is equipped with the oil storage ring, plunger chamber and pressure release chamber are for drive chamber eccentric settings, and keep away from the body surface in plunger chamber in the oil storage ring and form first tangent plane, and the body surface of keeping away from the pressure release chamber forms the second tangent plane, inlays on first tangent plane and adorns fixedly the oil feed check valve, and the oil feed check valve is communicating the plunger chamber. The plunger cavity and the pressure relief cavity are arranged on the body in an eccentric manner, the surfaces of the body on the opposite sides of the plunger cavity and the pressure relief cavity are respectively cut to form a first cut surface and a second cut surface, the oil inlet check valve is embedded and fixed on the first cut surface, the size and the weight of the original whole machine can be reduced due to the formation of the first cut surface and the second cut surface, the structure of the whole machine is more compact, raw materials are saved, the carrying and processing are convenient, and meanwhile, the flow passage area outside the oil inlet check valve is increased due to the formation of the two cut surfaces, so that the oil inlet resistance is reduced, hydraulic oil is kept smooth when entering the oil inlet check valve, and the oil inlet efficiency is improved; the oil inlet check valve is arranged on the first tangent plane opposite to the plunger cavity, so that the length of a connecting pipeline between the oil inlet check valve and the plunger cavity can be shortened, the liquid flow resistance is reduced, meanwhile, the formation of bubbles in oil can be reduced, and the processing quality is favorably ensured.
Preferably, the oil inlet check valve, the plunger and the pressure release valve form a triangle on the cross section of the body in the oil storage ring. When the oil one-way valve, the plunger and the pressure release valve form a triangle, the gravity center of the body can be rebalanced, the feeding vibration is reduced, and the processing performance and quality of the expansion pipe are ensured.
Preferably, the second tangent plane is the lower surface of body, and oil feed check valve and plunger coplane are on a parallel with the second tangent plane, and the relief valve is located the middle part above oil feed check valve and the plunger. When the oil inlet check valve and the plunger are in the same plane, the connecting passage of the oil inlet check valve and the plunger can be minimized, and when the pressure release valve is positioned in the upper middle part of the oil inlet check valve and the plunger, the liquid amount gravity center is positioned below during processing, so that the stability of the whole machine is improved.
Preferably, the other end of the body opposite to the driving cavity extends outwards to form a mounting platform, the outer ends of the plunger and the pressure release valve extend out of the end surface of the mounting platform, and the oil storage ring is covered outside the body between the mounting platform and the driving cavity. The mounting table is used for meeting the connection between the body and the power mechanism.
Preferably, the first section is perpendicular to the second section, and a connecting corner of the first section and the second section forms a balance section. When the first section is vertical to the second section, the oil inlet one-way valve, the plunger and the pressure release valve are easy to arrange and install, and the flow passage area outside the oil inlet one-way valve is maximized.
Preferably, the oil inlet check valve is embedded in the check valve cavity, and the inner side end of the check valve cavity is close to the plunger cavity. The inner side end of the one-way valve cavity is close to the plunger cavity, so that the length of a connecting pipeline between the two is shortened, the liquid flow resistance is reduced, the formation of bubbles in oil is reduced, and the processing quality is favorably ensured.
Preferably, the inner side end of the pressure relief cavity is communicated with the bottom surface of the driving cavity through an inner flow channel, an oil drainage hole is formed in the annular wall surface of the pressure relief cavity close to the surface of the body, and the outer port of the oil drainage hole is communicated with the oil storage ring.
Preferably, the oil inlet check valve is arranged in the middle of the oil storage ring in the length direction. Balance the body center of gravity and the oil intake resistance.
Preferably, a feed check valve is arranged in the plunger cavity close to the bottom surface of the driving cavity. The oil in the driving cavity is prevented from flowing backwards by arranging the feeding one-way valve.
Therefore, the eccentric plunger structure of the hydraulic pipe fitting machining tool has the following advantages: the plunger is parallel to the axis of the body and is eccentrically arranged, so that the redundant part of the body is used for arranging the oil inlet one-way valve and the pressure release valve, and the diameter of the pump body can be reduced by 19 percent; and the pump body is partially milled into two planes, so that the dead weight of the pump body is effectively reduced, raw materials are saved, the oil storage space is increased, the flow passage area is increased, and the outer diameter of the oil storage ring is reduced, so that the volume of the whole machine is further reduced, and the purpose of portability is realized.
Description of the drawings:
FIG. 1 is an exploded view of the eccentric ram configuration of the hydraulic pipe machining tool of the present invention;
FIG. 2 is a partial transverse cross-sectional view of the present invention;
FIG. 3 is a partial axial cross-sectional view of the present invention;
fig. 4 is another partial axial cross-sectional view of the present invention.
The specific implementation mode is as follows:
the technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
as shown in fig. 1 and 4, the eccentric plunger structure of the hydraulic pipe fitting processing tool of the present invention includes a body 1 of the hydraulic pipe fitting processing tool, a driving cavity 2 is formed at the front end of the body 1, the driving cavity 2 is coaxial with the body 1, the bottom surface of the driving cavity 2 extends outward axially to form a plunger cavity 3 and a pressure relief cavity 4, the inner end of the pressure relief cavity 4 is communicated with the bottom surface of the driving cavity 2 through an internal flow channel 13, a plunger 5 is hermetically and slidably connected in the plunger cavity 3, a feed check valve 16 is installed in the plunger cavity 3 near the bottom surface of the driving cavity 2, a pressure relief valve 6 is hermetically and slidably connected in the pressure relief cavity 4, an oil storage ring 7 is installed outside the plunger cavity 3 and the pressure relief cavity 4 in a sealed manner, two oil drainage holes 14 are opened on the annular wall surface of the pressure relief cavity 4 near the surface of the body 1, and the outer end ports of the oil drainage holes 14 are communicated in the oil storage ring 7. As shown in fig. 2, the plunger cavity 3 and the pressure relief cavity 4 are eccentrically arranged relative to the driving cavity 2, the lower surface of the body 1 far away from the plunger cavity 3 in the oil storage ring 7 is processed to form a first tangent plane 8, the right side surface of the body 1 far away from the pressure relief cavity 4 is processed to form a second tangent plane 9, the first tangent plane 8 is perpendicular to the second tangent plane 9, a connecting corner of the two tangent planes forms a balance tangent plane 15, a check valve cavity 12 is arranged on the first tangent plane 8, as shown in fig. 3, the check valve cavity 12 is positioned in the middle of the length direction of the oil storage ring 7, the oil inlet check valve 10 is embedded and fixed in the inner check valve cavity 12, the inner end of the check valve cavity 12 is close to and communicated with the plunger cavity 3, the oil inlet check valve 10 and the plunger 5 are coplanar and parallel to the second tangent plane 9, the pressure relief valve 6 is positioned in the middle of the upper part of the oil inlet check valve 10 and the plunger 5, so that the oil inlet check valve 10, the plunger 5 and the pressure relief valve 6 form an acute triangle on the cross section of the body 1, in order to prevent the wall surface of the oil retaining ring 7 from being recessed inward during oil feeding, the wall surface of the oil retaining ring 7 adjacent to the oil feeding check valve 10 is increased in strength, and the wall surface of the oil retaining ring 7 is increased in thickness in this embodiment. The other end of the body 1 opposite to the driving cavity 2 extends outwards to form a square mounting table 11, the outer side ends of the plunger 5 and the pressure release valve 6 extend out of the end face of the mounting table 11, the outer side end of the pressure release valve 6 is provided with a pressure release handle 61, the pressure release handle 61 extends outwards along the radial direction of the body 1, and the oil storage ring 7 covers the body 1 between the mounting table 11 and the driving cavity 2.
The specific embodiments described herein are merely illustrative of the principles of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (9)
1. The utility model provides an eccentric plunger structure of hydraulic pressure pipe fitting machining tool, includes body (1) and locates drive chamber (2) of body (1) front end, body (1) that drive chamber (2) bottom surface corresponds outwards extends and forms plunger chamber (3) and pressure release chamber (4), is equipped with plunger (5) in plunger chamber (3), is equipped with relief valve (6) in pressure release chamber (4), and body (1) dustcoat outside plunger chamber (3) and pressure release chamber (4) is equipped with and stores oil ring (7), its characterized in that: plunger chamber (3) and pressure release chamber (4) are for drive chamber (2) eccentric settings, and store in oil ring (7) and keep away from body (1) surface in plunger chamber (3) and form first tangent plane (8), keep away from body (1) surface in pressure release chamber (4) and form second tangent plane (9), inlay the dress on first tangent plane (8) and be fixed oil feed check valve (10), oil feed check valve (10) are communicating plunger chamber (3).
2. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the oil inlet one-way valve (10), the plunger (5) and the pressure release valve (6) form a triangle on the cross section of the body (1) in the oil storage ring (7).
3. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the second tangent plane (9) is the lower surface of body (1), and oil feed check valve (10) and plunger (5) coplane and be on a parallel with second tangent plane (9), and relief valve (6) are located the middle part of oil feed check valve (10) and plunger (5) top.
4. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the other end of the body (1) opposite to the driving cavity (2) extends outwards to form a mounting table (11), the outer side ends of the plunger (5) and the pressure release valve (6) extend out of the end face of the mounting table (11), and the oil storage ring (7) covers the body (1) between the mounting table (11) and the driving cavity (2).
5. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the first section (8) is perpendicular to the second section (9), and a connecting corner of the two sections forms a balance section (15).
6. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the oil inlet check valve (10) is embedded in the check valve cavity (12), and the inner side end of the check valve cavity (12) is close to the plunger cavity (3).
7. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the inner side end of the pressure relief cavity (4) is communicated with the bottom surface of the driving cavity (2) through an inner flow channel (13), an oil drainage hole (14) is formed in the annular wall surface of the pressure relief cavity (4) close to the surface of the body (1), and the outer port of the oil drainage hole (14) is communicated with the oil storage ring (7).
8. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: the oil inlet one-way valve (10) is arranged in the middle of the oil storage ring (7) in the length direction.
9. The eccentric plunger structure of a hydraulic pipe machining tool according to claim 1, wherein: a feeding one-way valve (16) is arranged in the plunger cavity (3) close to the bottom surface of the driving cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121711866.5U CN215998257U (en) | 2021-07-26 | 2021-07-26 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121711866.5U CN215998257U (en) | 2021-07-26 | 2021-07-26 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
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| CN215998257U true CN215998257U (en) | 2022-03-11 |
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| CN202121711866.5U Active CN215998257U (en) | 2021-07-26 | 2021-07-26 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109803A (en) * | 2021-07-26 | 2022-03-01 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
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2021
- 2021-07-26 CN CN202121711866.5U patent/CN215998257U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109803A (en) * | 2021-07-26 | 2022-03-01 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
| CN114109803B (en) * | 2021-07-26 | 2024-04-26 | 浙江飞越机电有限公司 | Eccentric plunger structure of hydraulic pipe fitting processing tool |
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