CN222335085U - High-efficiency pump unit - Google Patents
High-efficiency pump unit Download PDFInfo
- Publication number
- CN222335085U CN222335085U CN202421395832.3U CN202421395832U CN222335085U CN 222335085 U CN222335085 U CN 222335085U CN 202421395832 U CN202421395832 U CN 202421395832U CN 222335085 U CN222335085 U CN 222335085U
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- Prior art keywords
- plunger
- pump body
- plunger cavity
- way valve
- cavity
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 239000004519 grease Substances 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
本实用新型适用于机械工程领域，提供了一种高效能泵单元，包括泵体，还包括：柱塞，所述泵体内设置有连通的进油口、出油口和柱塞腔，所述进油口与柱塞腔中部连通，所述出油口与柱塞腔一端连通；所述柱塞滑动连接在柱塞腔内，所述柱塞上套设有复位弹簧，所述复位弹簧的一端与泵体连接，所述复位弹簧的另一端与柱塞远离泵体的一端连接；所述出油口内从靠近柱塞腔的一端依次设置有钢珠、泵体单向阀座、单向阀弹簧和单向阀螺母。本实用新型经过改良从单向阀座顶端使用橡胶垫圈，改成使用钢珠和泵体单向阀座配合，从而达到高性能、支持高压力、抗杂质能力强和使用寿命长。
The utility model is applicable to the field of mechanical engineering, and provides a high-efficiency pump unit, including a pump body, and also including: a plunger, wherein the pump body is provided with a connected oil inlet, an oil outlet and a plunger cavity, wherein the oil inlet is connected to the middle of the plunger cavity, and the oil outlet is connected to one end of the plunger cavity; the plunger is slidably connected in the plunger cavity, and a return spring is sleeved on the plunger, wherein one end of the return spring is connected to the pump body, and the other end of the return spring is connected to the end of the plunger away from the pump body; the oil outlet is provided with a steel ball, a pump body one-way valve seat, a one-way valve spring and a one-way valve nut in sequence from the end close to the plunger cavity. The utility model is improved from using a rubber gasket on the top of the one-way valve seat to using a steel ball and a pump body one-way valve seat in combination, thereby achieving high performance, supporting high pressure, strong resistance to impurities and long service life.
Description
Technical Field
The utility model belongs to the field of mechanical engineering, and particularly relates to a high-efficiency pump unit.
Background
In the current lubrication industry, a plunger pump is one of core components of a lubrication machine, and generally, a pump unit is mainly composed of a pump body, a plunger, a bullet zhai and the like, and the volume inside the pump body is changed to realize oil suction and oil discharge through the reciprocating motion of the plunger inside the pump body.
Most of internal designs of pump units in the current market are plungers with one-way valve seats, rubber gaskets and no pressure equalizing grooves, cannot well meet complex use conditions on site, are easy to damage when impurities exist in high-pressure working conditions or oil products, and cannot meet use requirements.
Disclosure of utility model
The embodiment of the utility model aims to provide a high-efficiency pump unit, and aims to solve the problem that a one-way valve seat, a rubber gasket and a plunger without a pressure equalizing groove cannot well meet the use condition of a complex environment on site.
The high-efficiency pump unit comprises a pump body and further comprises a plunger, wherein an oil inlet, an oil outlet and a plunger cavity are arranged in the pump body and are communicated, the oil inlet is communicated with the middle of the plunger cavity, the oil outlet is communicated with one end of the plunger cavity, the plunger is slidably connected in the plunger cavity, a return spring is sleeved on the plunger, one end of the return spring is connected with the pump body, the other end of the return spring is connected with one end of the plunger, which is far away from the pump body, and a steel ball, a pump body one-way valve seat, a one-way valve spring and a one-way valve nut are sequentially arranged in the oil outlet from one end, which is close to the plunger cavity.
According to a further technical scheme, the check valve nut is in threaded connection in the plunger cavity, a pump body check valve seat is arranged in the check valve nut in a penetrating mode, and the pump body check valve seat is in clearance fit with the check valve nut.
According to a further technical scheme, a plurality of oil inlets are uniformly formed in the side wall of the pump body.
According to a further technical scheme, a pressure equalizing groove is formed in the side wall of one end of the plunger, located in the plunger cavity.
According to a further technical scheme, one end, away from the pump body, of the plunger is fixedly connected with a spring seat.
Compared with the prior art, the utility model has the beneficial effects that:
Compared with the rubber gasket used at the top end of a one-way valve seat in the market, the high-efficiency pump unit provided by the utility model has the advantages that the rubber gasket is not easy to replace when being damaged for a long time, and even faces to highly corrosive oil products and can be directly damaged.
Drawings
FIG. 1 is a schematic diagram of a high performance pump unit according to the present utility model;
FIG. 2 is a schematic view of the front view angle of FIG. 1 according to the present utility model;
FIG. 3 is a schematic cross-sectional view of view A-A of FIG. 2 according to the present utility model.
In the drawing, a return spring-1, a one-way valve nut-2, a one-way valve spring-3, a pump body one-way valve seat-4, a steel ball-5, a pump body-6, a plunger-7, a spring seat-8, a pressure equalizing groove-9, an oil inlet-10, an oil outlet-11 and a plunger cavity-12 are arranged.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Specific implementations of the utility model are described in detail below in connection with specific embodiments.
The high-efficiency pump unit comprises a pump body 6 and further comprises a plunger 7, wherein an oil inlet 10, an oil outlet 11 and a plunger cavity 12 which are communicated are arranged in the pump body 6, the oil inlet 10 is communicated with the middle of the plunger cavity 12, the oil outlet 11 is communicated with one end of the plunger cavity 12, the plunger 7 is slidably connected in the plunger cavity 12, a return spring 1 is sleeved on the plunger 7, one end of the return spring 1 is connected with the pump body 6, the other end of the return spring 1 is connected with one end of the plunger 7 far away from the pump body 6, a steel ball 5, a pump body check valve seat 4, a check valve spring 3 and a check valve nut 2 are sequentially arranged in the oil outlet 11 from one end close to the plunger cavity 12, the check valve nut 2 is in threaded connection in the plunger cavity 12, the check valve nut 2 is internally provided with the pump body check valve seat 4 in a penetrating manner, and the pump body check valve seat 4 is in clearance fit with the check valve nut 2.
In the embodiment of the utility model, through the rotation of a right angle motor in an electric grease injector, a cam on a right angle motor shaft is driven to rotate, the cam intermittently overcomes the elasticity of a return spring 1 and pushes a plunger 7 to the right, when the plunger 7 moves to the right, the plunger 7 extrudes redundant grease in a plunger cavity 12 from an oil inlet 10 until the plunger 7 moves to the right side of the oil inlet 10, the plunger 7 extrudes the grease in the plunger cavity 12, the pressure in the plunger cavity 12 is increased, the high pressure in the plunger cavity 12 overcomes the elasticity of a check valve spring 3 and pushes a steel ball 5 and a pump body check valve seat 4 to the right, the grease in the plunger cavity 12 is further pushed into an oil outlet 11, the grease flows to the right through a check valve nut 2, when the cam does not push the plunger 7, the return spring 1 pushes the plunger 7 to move to the left and returns, the pressure in the plunger cavity 12 becomes low, the check valve spring 3 pushes the pump body check valve seat 4 and the steel ball 5 to the left, the steel ball 5 blocks the right end of the plunger cavity 12, the plunger cavity 12 moves to the left, the pressure in the plunger cavity 12 decreases, the low pressure in the plunger cavity 12 applies suction force to the steel ball 5, the steel ball 5 tightly blocks the right end of the plunger cavity 12 until the plunger 7 moves to the left end, the left end of the plunger 7 moves to the oil inlet 10 is not to the oil inlet 10, the oil inlet is compressed by the check valve nut 2, and the suction force is adjusted, and the grease is further sucked into the oil inlet 2 from the oil inlet 2 by the check valve nut 2, when the check valve 2 is adjusted, and the suction force is not adjusted to the left, and the pressure is moved by the piston nut is moved to the left, and the oil is moved to the oil, and the left.
As shown in fig. 1-3, as a preferred embodiment of the present utility model, a plurality of oil inlets 10 are uniformly formed on the side wall of the pump body 6.
In the embodiment of the utility model, four oil inlets 10 are arranged, so that the stable oil inlet amount of the plunger cavity 12 is ensured.
As shown in fig. 1-3, as a preferred embodiment of the utility model, the side wall of the plunger 7 at one end in the plunger cavity 12 is provided with a pressure equalizing groove 9.
In the embodiment of the utility model, the pressure equalizing groove 9 of the plunger 7 is designed, so that the pump unit is more stable in the use process, the oil quantity is more even when the oil inlet 10 is filled with oil, the old plunger in the market is not blocked, the oil quantity is not balanced, and the plunger is inclined in the use process, and when the plunger is faced with high pressure, the design is more stable compared with the design without the pressure equalizing groove, and the oil output is more stable.
As shown in fig. 1-3, as a preferred embodiment of the present utility model, a spring seat 8 is fixedly connected to an end of the plunger 7 away from the pump body 6.
In the embodiment of the present utility model, the left side of the return spring 1 is fixed by the spring seat 8.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (5)
1. A high efficiency pump unit comprising a pump body, further comprising:
the plunger is internally provided with an oil inlet, an oil outlet and a plunger cavity which are communicated, the oil inlet is communicated with the middle part of the plunger cavity, and the oil outlet is communicated with one end of the plunger cavity;
The plunger is slidably connected in the plunger cavity, a return spring is sleeved on the plunger, one end of the return spring is connected with the pump body, and the other end of the return spring is connected with one end, far away from the pump body, of the plunger;
The inside of the oil outlet is sequentially provided with a steel ball, a pump body one-way valve seat, a one-way valve spring and a one-way valve nut from one end close to the plunger cavity.
2. The high efficiency pump unit of claim 1, wherein the check valve nut is threadably connected within the plunger cavity, a pump body check valve seat is disposed therethrough, and a clearance fit is provided between the pump body check valve seat and the check valve nut.
3. The high efficiency pump unit of claim 1, wherein the pump body sidewall is uniformly provided with a plurality of oil inlets.
4. The high performance pump unit of claim 1, wherein the plunger is provided with a pressure equalizing groove on a sidewall of one end of the plunger cavity.
5. The high efficiency pump unit of claim 4, wherein a spring seat is fixedly connected to an end of the plunger remote from the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421395832.3U CN222335085U (en) | 2024-06-19 | 2024-06-19 | High-efficiency pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421395832.3U CN222335085U (en) | 2024-06-19 | 2024-06-19 | High-efficiency pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222335085U true CN222335085U (en) | 2025-01-10 |
Family
ID=94147560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421395832.3U Active CN222335085U (en) | 2024-06-19 | 2024-06-19 | High-efficiency pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222335085U (en) |
-
2024
- 2024-06-19 CN CN202421395832.3U patent/CN222335085U/en active Active
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