CN220452175U - Plunger pump structure with noise reduction function - Google Patents
Plunger pump structure with noise reduction function Download PDFInfo
- Publication number
- CN220452175U CN220452175U CN202320650634.6U CN202320650634U CN220452175U CN 220452175 U CN220452175 U CN 220452175U CN 202320650634 U CN202320650634 U CN 202320650634U CN 220452175 U CN220452175 U CN 220452175U
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- plunger pump
- plunger
- sleeve
- pump
- hole
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- 239000002243 precursor Substances 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model discloses a plunger pump structure with a noise reduction function. The plunger pump precursor and the plunger pump sleeve are fixedly arranged at intervals through a buffer cushion, a plunger pump one-way valve spring and a pump sleeve steel ball, an outlet flow passage is arranged between the plunger pump precursor and the plunger pump sleeve, and the buffer cushion, the plunger pump one-way valve spring and the pump sleeve steel ball are positioned in the outlet flow passage; the plunger pump comprises a plunger pump sleeve, a plunger assembly, a plunger steel ball, a one-way sealing ring and a plunger pump plunger, wherein the plunger assembly is arranged in an inner cavity of the plunger pump sleeve and comprises a return spring, a one-way valve sleeve, a one-way valve spring, the plunger steel ball, the one-way sealing ring and the plunger pump plunger, and an inlet flow channel is formed between an outer port of the inner cavity of the plunger pump sleeve and the plunger pump plunger; the plunger pump oil filter cover is arranged outside the plunger pump sleeve and the plunger of the plunger pump, and the star-shaped sealing ring of the plunger pump is sleeved outside the plunger of the plunger pump. The utility model can reduce the noise caused by the high-pressure liquid flowing, reduce the noise caused by the liquid entering the inner cavity to be in direct contact with the precursor of the plunger pump, has quick response and can sputter large oil pressure in a short time.
Description
Technical Field
The utility model designs a pump structure, in particular to a plunger pump structure with a noise reduction function.
Background
Plunger pump, its effect lies in: under the support of external force such as an external motor, liquid enters the cavity from a designated position, and flows out from the designated position due to the existence of oil pressure, so that the liquid cannot flow out reversely.
The existing plunger pump can provide very good pressure building effect under the limiting working condition, but because the internal working condition is very harsh, the requirements on a plurality of NVH noise aspects are required to be met in the field of automobile chassis, and the noise optimization is not ideal under the high-pressure working condition, so the plunger pump structure with the noise reduction function is considered to be developed.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model provides a plunger pump structure with a noise reduction function.
The technical scheme adopted by the utility model is as follows:
the utility model comprises a pump sleeve assembly, a plunger pump oil filter and a plunger pump star-shaped sealing ring.
The pump sleeve assembly comprises a plunger pump precursor, a buffer cushion, a plunger pump check valve spring, a pump sleeve steel ball and a plunger pump sleeve, wherein the plunger pump precursor and the plunger pump sleeve are fixedly arranged at intervals through the buffer cushion, the plunger pump check valve spring and the pump sleeve steel ball, an outlet flow passage for oil outflow is arranged between the plunger pump precursor and the plunger pump sleeve, and the buffer cushion, the plunger pump check valve spring and the pump sleeve steel ball are positioned in the outlet flow passage.
The plunger pump comprises a plunger pump sleeve, a plunger pump body, a plunger pump ball and a plunger pump ball, wherein a plunger assembly is arranged in the plunger pump sleeve cavity; the plunger pump oil filter cover is arranged outside the plunger pump sleeve and the plunger of the plunger pump, and the star-shaped sealing ring of the plunger pump is sleeved outside the plunger of the plunger pump.
The plunger pump is sleeved with a through hole at the bottom of an inner cavity close to a plunger pump precursor, a groove is formed in the end face of the plunger pump precursor close to the plunger pump sleeve, a buffer pad is arranged in the groove, a central through hole is formed in the buffer pad, the central through hole of the buffer pad and the through hole of the plunger pump sleeve are coaxially arranged, a plunger pump check valve spring and a pump sleeve steel ball are respectively arranged in the central through hole of the buffer pad and the through hole of the plunger pump sleeve, and the plunger pump precursor is sequentially connected with the through holes of the plunger pump check valve spring, the pump sleeve steel ball and the plunger pump sleeve; the through hole of the plunger pump sleeve is provided with a conical hole surface at the hole end surface facing the plunger pump precursor, and the conical hole surface and the pump sleeve steel ball are connected in a matched manner to form a one-way conduction structure.
The bottom in the inner cavity of the plunger pump sleeve is provided with a return spring, and the other end of the return spring is connected with the check valve sleeve.
The one-way valve sleeve is barrel-shaped, and a barrel-shaped opening of the one-way valve sleeve is arranged towards a plunger of the plunger pump; the plunger pump plunger is characterized in that a flow hole is formed in the end face, facing the bottom of the inner cavity of the plunger pump sleeve, of the plunger pump plunger, and a channel for communicating the flow hole with the inlet flow channel is formed in the plunger pump plunger; the plunger steel ball is arranged at the position of a flow hole of a plunger of the plunger pump and is connected with the barrel-shaped bottom of the valve sleeve of the one-way valve through the one-way valve spring.
The end part of the barrel-shaped opening of the one-way valve sleeve is provided with an outer flange, and the other end of the return spring is connected to one side of the outer flange of the one-way valve sleeve; the outer peripheral surface of the plunger pump plunger is provided with an outer flange, the inner peripheral surface of the unidirectional sealing ring is provided with an inner flange, and the other side of the outer flange of the unidirectional valve sleeve and the outer flange of the plunger pump plunger are respectively and axially connected to two sides of the inner flange of the unidirectional sealing ring.
The one-way valve sleeve is provided with a hollow structure for circulation.
The plunger pump oil filter is of an open teacup structure with a large opening at one end and a small opening at the other end, one end of the large opening of the plunger pump oil filter is pressed in the opening direction and sleeved outside a plunger pump sleeve of the pump sleeve assembly, and a plunger of the plunger pump penetrates through one end of the small opening of the plunger pump oil filter.
The inner hole of the star-shaped sealing ring of the plunger pump is penetrated by the plunger of the plunger pump and contacts with the end face connected with one end of the oil filtering small opening of the plunger pump.
The plunger pump precursor recess be equipped with the heavy groove step, the blotter be equipped with the outer flange, the outer flange of blotter be connected to the heavy groove step of plunger pump precursor on, the outer flange of blotter be the ripple structure of decorative pattern at the surface processing of being connected with the heavy groove step for the blotter passes through ripple structure and the contact of plunger pump precursor.
The beneficial effects of the utility model are as follows:
according to the utility model, the buffer cushion is added into the plunger pump precursor, the boss part at the top of the buffer cushion is provided with a gap, the groove form in front of the plunger pump precursor is eliminated, the middle surface of the buffer cushion is a corrugated curved surface, when high-pressure liquid enters the inner cavity, the material is deformed to absorb energy, and the noise caused by high-pressure liquid impact is slowed down, so that the plunger pump has a noise reduction function.
Drawings
FIG. 1 is a cross-sectional view of a plunger pump;
FIG. 2 is an isometric view of a cushion;
FIG. 3 is a liquid flow pattern;
fig. 4 is an overall external view of the present utility model.
In the figure: plunger pump plunger (1), plunger pump precursor (2), plunger pump cover (3), plunger pump oil filter (4), plunger pump star-shaped sealing ring (5), plunger pump check valve spring (6), steel ball, blotter (7), reset spring (8), check valve housing (9), check valve spring (10), check sealing ring (11).
Detailed Description
The utility model is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 and 4, the structure comprises a pump sleeve assembly, a plunger pump oil filter 4 and a plunger pump star-shaped sealing ring 5.
The pump sleeve assembly comprises a plunger pump precursor 2, a buffer cushion 7, a plunger pump check valve spring 6, a pump sleeve steel ball and a plunger pump sleeve 3, wherein the plunger pump precursor 2 and the plunger pump sleeve 3 are fixedly arranged at intervals through the buffer cushion 7, the plunger pump check valve spring 6 and the pump sleeve steel ball, an outlet flow passage for oil outflow is arranged between the plunger pump precursor 2 and the plunger pump sleeve 3, and the buffer cushion 7, the plunger pump check valve spring 6 and the pump sleeve steel ball are positioned in the outlet flow passage.
The plunger pump sleeve 3 is provided with a through hole at the bottom of an inner cavity close to the plunger pump precursor 2, the plunger pump precursor 2 is provided with a groove at the end face close to the plunger pump sleeve 3, a buffer cushion 7 is arranged in the groove, the buffer cushion 7 is provided with a central through hole, the central through hole of the buffer cushion 7 and the through hole of the plunger pump sleeve 3 are coaxially arranged, and a plunger pump check valve spring 6 and a pump sleeve steel ball are respectively arranged in the central through hole of the buffer cushion 7 and the through hole of the plunger pump sleeve 3, and the plunger pump precursor 2 is connected with the through hole of the plunger pump sleeve 3 through the plunger pump check valve spring 6 and the pump sleeve steel ball in sequence.
The through hole of the plunger pump sleeve 3 is provided with a conical hole surface at the hole end surface facing the plunger pump precursor 2, and the conical hole surface and the pump sleeve steel ball are connected in a matched manner to form a one-way conduction structure.
Therefore, oil can only enter the through hole from the inside of the pump sleeve 3 of the plunger pump sleeve through the cooperation of the steel ball of the pump sleeve and the conical hole surface and then flow to the outlet flow passage, so that the one-way conduction function is realized, and backflow cannot be realized.
The plunger pump comprises a plunger pump sleeve 3, a plunger assembly, a plunger pump plunger, a plunger pump sleeve 1 and a plunger pump sleeve, wherein the plunger assembly is arranged in an inner cavity of the plunger pump sleeve 3 and comprises a return spring 8, a check valve sleeve 9, a check valve spring 10, a plunger steel ball, a check seal ring 11 and a plunger pump plunger 1, the plunger pump plunger 1 is sleeved in the inner cavity of the plunger pump sleeve 3 through the check seal ring 11, the return spring 8 and the check valve sleeve 9 are arranged between the plunger pump plunger 1 and the middle bottom of the inner cavity of the plunger pump sleeve 3, the check valve spring 10 and the plunger steel ball are arranged between the check valve sleeve 9 and the plunger pump plunger 1, and an annular inlet flow passage for oil inflow is formed between an outer port of the inner cavity of the plunger pump sleeve 3 and the plunger pump plunger 1; the plunger pump oil filter 4 is covered outside the plunger pump sleeve 3 and the plunger pump plunger 1, and the plunger pump star-shaped sealing ring 5 is sleeved outside the plunger pump plunger 1.
The bottom of the inner cavity of the plunger pump sleeve 3 is provided with a return spring 8, one end of the return spring 8 is connected to the bottom surface of the inner cavity of the plunger pump sleeve 3, and the other end of the return spring 8 is connected with a check valve sleeve 9.
The one-way valve sleeve 9 is barrel-shaped, and a barrel-shaped opening of the one-way valve sleeve 9 is arranged towards the plunger 1 of the plunger pump; the plunger pump plunger 1 is provided with a flow hole at the end face facing the bottom of the inner cavity of the plunger pump sleeve 3, and a channel for communicating the flow hole with an inlet flow channel is arranged in the plunger pump plunger 1; the plunger steel ball is arranged at the circulation hole of the plunger 1 of the plunger pump and is connected with the barrel-shaped bottom of the check valve sleeve 9 through the check valve spring 10.
The end of the barrel-shaped opening of the check valve sleeve 9 is provided with an outer flange, and the other end of the return spring 8 is connected to one side of the outer flange of the check valve sleeve 9; the outer peripheral surface of the plunger pump plunger 1 is provided with an outer flange, the inner peripheral surface of the unidirectional sealing ring 11 is provided with an inner flange, the other side of the outer flange of the unidirectional valve sleeve 9 and the outer flange of the plunger pump plunger 1 are respectively and axially connected to two sides of the inner flange of the unidirectional sealing ring 11, and the outer flange are in contact with each other to form axial limiting connection.
Therefore, the one-way sealing ring 11 is in contact with the inner wall of the plunger pump sleeve 3, and when the plunger pump is in operation, the plunger pump plunger 1 drives the one-way sealing ring 11 and the one-way valve sleeve 9 to reciprocate in the plunger pump sleeve 3 along the axial direction.
The one-way valve sleeve 9 is provided with a hollow structure for circulation.
The plunger pump oil filter 4 is of an opening teacup type structure with a large opening at one end and a small opening at the other end, eight small feet are arranged at the bottom of the plunger pump oil filter 4 and are convenient to press fit and provide axial force, one end of the large opening of the plunger pump oil filter 4 is pressed fit in the opening direction and sleeved outside the plunger pump sleeve 3 of the pump sleeve assembly, and the plunger pump 1 penetrates through one end of the small opening of the plunger pump oil filter 4.
The plunger pump oil filter 4 is provided with a hollow structure and a filtering structure.
The inner hole of the star-shaped sealing ring 5 of the plunger pump is penetrated by the plunger 1 of the plunger pump and contacts with the end face connected with one end of the small opening of the oil filter 4 of the plunger pump.
As shown in fig. 1 and 2, the groove of the plunger pump precursor 2 is provided with a sink step, the buffer pad 7 is provided with an outer flange, the outer flange of the buffer pad 7 is connected to the sink step of the plunger pump precursor 2, the surface of the outer flange of the buffer pad 7 connected with the sink step is processed into a corrugated structure with patterns, the buffer pad 7 is in contact with the plunger pump precursor 2 through the corrugated structure, the bottom patterns ensure that the buffer pad 7 is tightly matched between the plunger pump precursor 2 and the plunger pump sleeve 3, and the bottom corrugated design can enable the buffer pad to have an energy absorption effect when oil pressure is impacted, so that the mutual friction loss between noise and the internal structure of a product caused by energy impact of the plunger pump is reduced.
The outer circle of the buffer cushion 7 is matched with the plunger pump precursor 2 to ensure that the radial matching is perfect when the buffer cushion is assembled, the inner through hole guides the plunger pump one-way valve spring 6 to maintain the radial direction of the plunger pump one-way valve spring, so that the spring force uniformly acts on the steel ball, and the buffer cushion has good effect on hydraulic stability control in the working process.
According to the utility model, the buffer cushion 7 is added into the plunger pump precursor 2, a gap is formed in the boss part at the top of the buffer cushion 7, a groove form in front of the plunger pump precursor 2 is eliminated, the middle surface of the buffer cushion 7 is a corrugated curved surface, and when high-pressure liquid enters an inner cavity, the material deforms to absorb energy, so that noise caused by high-pressure liquid impact is relieved.
When the pump is installed, firstly, the buffer cushion 7 is pressed into the plunger pump precursor 2, the plunger pump one-way valve spring 6 is placed on the buffer cushion 7, the steel ball is placed on the plunger pump one-way valve spring 6, and the plunger pump sleeve 3 and the plunger pump precursor 2 are pressed in an interference manner to obtain a pump sleeve assembly; then a one-way valve spring 10 and a steel ball are placed in a one-way valve sleeve 9, a one-way sealing ring 11 is pressed into a plunger pump plunger 1, and the opening end of the one-way valve sleeve 9 is connected with the plunger pump plunger 1 to obtain a plunger assembly; finally, the end of a return spring 8 of the plunger assembly is placed in the plunger pump sleeve 3, the plunger pump oil filter 4 is used for compression, and the star-shaped sealing ring 5 of the plunger pump is placed in the end of the plunger 1 of the plunger pump to be close to the plunger pump oil filter 4.
As shown in fig. 3, when the plunger 1 of the plunger pump contacts with an external vertical movement structure, when the plunger 1 of the plunger pump performs reciprocating movement and the return spring 8 works, liquid can push the plunger steel ball against the spring force from the inlet flow passage and then is sucked into the interior of the pump sleeve 3 of the plunger pump, and when the plunger pump is pressed down, the liquid in the pump sleeve 3 of the plunger pump overcomes the spring force and pushes the pump sleeve steel ball to be pressed into the inner cavity of the pump precursor, namely the outlet flow passage, so that the pumping work of the liquid is realized.
When the oil pressure cushion pad 13 is used, the cushion pad 13 has a buffering effect on liquid entering the cavity, noise caused by high-pressure liquid flowing is reduced, the noise is contacted with the cushion pad 7 and the plunger pump sleeve 3, and noise caused by direct contact between the liquid entering the cavity and the plunger pump precursor 2 is reduced.
The utility model has quick response and can sputter large oil pressure in a short time.
Claims (9)
1. The utility model provides a plunger pump structure that has function of making an uproar, its characterized in that:
comprises a pump sleeve assembly, a plunger pump oil filter (4) and a plunger pump star-shaped sealing ring (5);
the pump sleeve assembly comprises a plunger pump precursor (2), a buffer cushion (7), a plunger pump one-way valve spring (6), a pump sleeve steel ball and a plunger pump sleeve (3), wherein the plunger pump precursor (2) and the plunger pump sleeve (3) are fixedly arranged at intervals through the buffer cushion (7), the plunger pump one-way valve spring (6) and the pump sleeve steel ball, an outlet flow passage for oil outflow is arranged between the plunger pump precursor (2) and the plunger pump sleeve (3), and the buffer cushion (7), the plunger pump one-way valve spring (6) and the pump sleeve steel ball are positioned in the outlet flow passage;
the plunger pump comprises a plunger pump sleeve (3), and is characterized in that a plunger assembly is arranged in an inner cavity of the plunger pump sleeve (3), the plunger assembly comprises a return spring (8), a check valve sleeve (9), a check valve spring (10), a plunger steel ball, a check seal ring (11) and a plunger pump plunger (1), the plunger pump plunger (1) is sleeved in the inner cavity of the plunger pump sleeve (3) through the check seal ring (11), the return spring (8) and the check valve sleeve (9) are arranged between the plunger pump plunger (1) and the middle bottom of the inner cavity of the plunger pump sleeve (3), the check valve spring (10) and the plunger steel ball are arranged between the check valve sleeve (9) and the plunger pump plunger (1), and an inlet flow passage for oil inflow is formed between an outer port of the inner cavity of the plunger pump sleeve (3) and the plunger pump plunger (1); the plunger pump oil filter (4) is covered outside the plunger pump sleeve (3) and the plunger pump plunger (1), and the plunger pump star-shaped sealing ring (5) is sleeved outside the plunger pump plunger (1).
2. The plunger pump structure with noise reduction function according to claim 1, wherein:
the plunger pump sleeve (3) is provided with a through hole at the bottom of an inner cavity close to the plunger pump precursor (2), the plunger pump precursor (2) is provided with a groove at the end face close to the plunger pump sleeve (3), a buffer pad (7) is arranged in the groove, the buffer pad (7) is provided with a central through hole, the central through hole of the buffer pad (7) and the through hole of the plunger pump sleeve (3) are coaxially arranged, the central through hole of the buffer pad (7) and the through hole of the plunger pump sleeve (3) are respectively provided with a plunger pump check valve spring (6) and a pump sleeve steel ball, and the plunger pump precursor (2) is connected with the through hole of the plunger pump sleeve (3) sequentially through the plunger pump check valve spring (6), the pump sleeve steel ball and the through hole of the plunger pump sleeve (3); the through hole of the plunger pump sleeve (3) is formed into a conical hole surface at the hole end surface facing the plunger pump precursor (2), and the conical hole surface and the pump sleeve steel ball are connected in a matched mode to form a one-way conduction structure.
3. The plunger pump structure with noise reduction function according to claim 1, wherein:
the bottom in the inner cavity of the plunger pump sleeve (3) is provided with a return spring (8), and the other end of the return spring (8) is connected with a check valve sleeve (9).
4. The plunger pump structure with noise reduction function according to claim 1, wherein:
the one-way valve sleeve (9) is barrel-shaped, and a barrel-shaped opening of the one-way valve sleeve (9) is arranged towards the plunger (1) of the plunger pump; the plunger pump plunger (1) is provided with a flow hole at the end face facing the bottom of the inner cavity of the plunger pump sleeve (3), and a channel for communicating the flow hole with the inlet flow channel is arranged in the plunger pump plunger (1); the plunger steel ball is arranged at the circulation hole of the plunger (1) of the plunger pump and is connected with the barrel-shaped bottom of the check valve sleeve (9) through the check valve spring (10).
5. The plunger pump structure with noise reduction function according to claim 1, wherein:
the end part of the barrel-shaped opening of the one-way valve sleeve (9) is provided with an outer flange, and the other end of the return spring (8) is connected to one side of the outer flange of the one-way valve sleeve (9); the outer peripheral surface of the plunger pump plunger (1) is provided with an outer flange, the inner peripheral surface of the unidirectional sealing ring (11) is provided with an inner flange, and the other side of the outer flange of the unidirectional valve sleeve (9) and the outer flange of the plunger pump plunger (1) are respectively and axially connected to two sides of the inner flange of the unidirectional sealing ring (11).
6. The plunger pump structure with noise reduction function according to claim 1, wherein:
the one-way valve sleeve (9) is provided with a hollowed-out structure for circulation.
7. The plunger pump structure with noise reduction function according to claim 1, wherein:
the plunger pump oil filter (4) is of an opening teacup type structure with a large opening at one end and a small opening at the other end, one end of the large opening of the plunger pump oil filter (4) is pressed in the opening direction and sleeved outside the plunger pump sleeve (3) of the pump sleeve assembly, and the plunger pump plunger (1) penetrates through one end of the small opening of the plunger pump oil filter (4).
8. The plunger pump structure with noise reduction function according to claim 1, wherein:
the inner hole of the star-shaped sealing ring (5) of the plunger pump is penetrated by the plunger (1) of the plunger pump and contacts with the end face of one end of the small opening of the oil filter (4) of the plunger pump.
9. The plunger pump structure with noise reduction function according to claim 1, wherein:
the plunger pump is characterized in that the groove of the plunger pump precursor (2) is provided with a sink step, the buffer pad (7) is provided with an outer flange, the outer flange of the buffer pad (7) is connected to the sink step of the plunger pump precursor (2), and the outer flange of the buffer pad (7) is processed into a corrugated structure with patterns on the surface connected with the sink step, so that the buffer pad (7) is in contact with the plunger pump precursor (2) through the corrugated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320650634.6U CN220452175U (en) | 2023-03-29 | 2023-03-29 | Plunger pump structure with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320650634.6U CN220452175U (en) | 2023-03-29 | 2023-03-29 | Plunger pump structure with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452175U true CN220452175U (en) | 2024-02-06 |
Family
ID=89730418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320650634.6U Active CN220452175U (en) | 2023-03-29 | 2023-03-29 | Plunger pump structure with noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452175U (en) |
-
2023
- 2023-03-29 CN CN202320650634.6U patent/CN220452175U/en active Active
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