Reciprocating pump piston and reciprocating pump

Abstract

The present invention relates to the technology of a reciprocating pump piston, specifically a reciprocating pump piston and a reciprocating pump. The above-mentioned reciprocating pump piston includes: a housing and a cavity, and the cavity is arranged in the housing; filling particles are arranged in the cavity; there are gaps between the filling particles, and the filling particles can move in the cavity. With such a setting, the vibration of the reciprocating pump can be effectively reduced at the source, the working stability of the reciprocating pump can be improved, the service life can be prolonged, the normal working of other instruments and equipment can be prevented from being affected by vibration, and at the same time, the noise generated by vibration is reduced, the working environment is effectively improved, the noise pollution is reduced, and there is no need to make a large number of modifications to the existing manufacturing process of the reciprocating pump, thus saving costs.

Description

Technical Field

[0001] The present invention relates to the technology of a reciprocating pump piston, specifically a reciprocating pump piston and a reciprocating pump. Background Art

[0002] The worm gear and worm pair and the crankshaft connecting rod mechanism in the reciprocating pump transmission mechanism are the main vibration and noise source components in the mechanism. Among them, the piston assembly is the most important moving component and also the main vibration and noise source. When the reciprocating pump transmission mechanism works, the reciprocating pump piston moves back and forth. Due to the periodic reciprocating force, the reciprocating force directly acts on the piston body, generating vibration, and the vibration is transmitted through the transmission mechanisms such as the worm gear and worm, and a large amount of noise is generated by the vibration. Therefore, it is very important to invent a reciprocating pump piston that can reduce the vibration response and reduce the vibration of the reciprocating pump from the source. Summary of the Invention

[0003] The embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] For this reason, one object of the embodiments of the present invention is to provide a reciprocating pump piston.

[0005] Another object of the embodiments of the present invention is to provide a reciprocating pump that cooperates with the above-mentioned reciprocating pump piston.

[0006] To achieve the above object, the technical solution of the first aspect of the present invention provides a reciprocating pump piston, which is characterized in that it includes:

[0007] A housing and a cavity,

[0008] The cavity is arranged in the housing;

[0009] Filling particles are arranged in the cavity;

[0010] There are gaps between the filling particles, and the filling particles can move in the cavity.

[0011] In addition, the reciprocating pump piston in the above technical solution provided by the embodiments of the present invention may further have the following additional technical features:

[0012] In a technical solution of the present invention, the housing is provided with a filling hole;

[0013] The filling hole is used to fill the filling particles.

[0014] In a technical solution of the present invention, the cavity occupies more than 50% of the volume of the housing.

[0015] In a technical solution of the present invention, a sound insulation layer is arranged on the inner wall of the cavity, and the sound insulation layer is used to reduce the noise generated by the movement of the filling particles.

[0016] In one technical solution of the present invention, the size of the filling particles is 0.1 mm to 5 mm.

[0017] In one technical solution of the present invention, the filling particles are metal particles or ceramic particles.

[0018] In one technical solution of the present invention, the metal particles are heavy metal particles and light metal particles.

[0019] In one technical solution of the present invention, the ceramic particles account for 50% to 80% of the volume of the cavity.

[0020] In one technical solution of the present invention, the metal particles account for 50% to 80% of the volume of the cavity.

[0021] In a technical solution of the second aspect of the present invention, there is provided a reciprocating pump, comprising:

[0022] A worm and worm gear mechanism,

[0023] The worm and worm gear mechanism is connected to the reciprocating pump piston of any one of the above.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] The present invention provides a reciprocating pump piston, comprising: a housing and a cavity, wherein the cavity is arranged in the housing; and a certain number of filling particles are arranged in the cavity; there are gaps between the filling particles, and the filling particles can move in the cavity. When the reciprocating pump piston makes a reciprocating motion, the filling particles in the cavity will also move accordingly. Since there are gaps between the filling particles and each filling particle can move freely, collisions and frictions will occur between the filling particles, between the filling particles and the inner wall of the cavity, so as to consume the vibration generated when the reciprocating force directly acts on the piston body during the reciprocating motion, thereby reducing the noise generated by the vibration. With such a setting, the vibration of the reciprocating pump can be effectively reduced at the source, the working stability of the reciprocating pump can be improved, the service life can be prolonged, the normal operation of other instrument devices can be prevented from being affected by the vibration, and at the same time, the noise generated by the vibration is reduced, the working environment is effectively improved, the noise pollution is reduced, and there is no need to make a large number of modifications to the existing manufacturing process of the reciprocating pump, thus saving costs.

[0026] For the reciprocating pump piston described in the present invention, other advantages, objectives and features of the present invention will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present invention. Brief Description of the Drawings

[0027] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0028] Figure 1 The structural schematic diagram of a reciprocating pump piston in one direction according to an embodiment of the present invention is shown;

[0029] Figure 2 The structural schematic diagram of a reciprocating pump piston in another direction according to an embodiment of the present invention is shown.

[0030] Wherein, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names in

[0031] is as follows: 100 housing, 200 cavity, 300 filling particles,

[0032] 400 filling holes, 500 sound insulation layer. Detailed implementation manners

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it according to the description in the specification.

[0034] It should be understood that the terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0035] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, a reciprocating pump piston is provided, including: a housing 100 and a cavity 200, the cavity 200 is arranged in the housing 100; filling particles 300 are arranged in the cavity 200; there are gaps between the filling particles 300, and the filling particles 300 can move in the cavity 200.

[0036] In this embodiment, the reciprocating pump piston is composed of a housing 100 and a cavity 200, where the cavity 200 is disposed in the housing 100; and a certain number of filling particles 300 are arranged in the cavity 200; there are gaps between the filling particles 300, and the filling particles 300 can move within the cavity 200. When the reciprocating pump piston reciprocates, the filling particles 300 in the cavity 200 also move accordingly. Since there are gaps between the filling particles 300 and each filling particle 300 can move freely, collisions and frictions occur between the filling particles 300 and between the filling particles 300 and the inner wall of the cavity 200, thereby consuming the vibration generated when the reciprocating force directly acts on the piston body, thus reducing the noise generated by the vibration. With such a setting, the vibration of the reciprocating pump can be effectively reduced at the source, the working stability of the reciprocating pump can be improved, the service life can be extended, the normal operation of other instruments and equipment can be prevented from being affected by the vibration, and at the same time, the noise generated by the vibration is reduced, the working environment is effectively improved, the noise pollution is reduced, and there is no need to make a large number of modifications to the existing manufacturing process of the reciprocating pump, saving costs.

[0037] In one embodiment of the present invention, as Figure 1 and Figure 2 shown, the housing 100 is provided with a filling hole 400; the filling hole 400 is used for filling the filling particles 300.

[0038] In this embodiment, the housing 100 is provided with a filling hole 400, the other end of the filling hole 400 is connected to the cavity 200, the filling particles 300 are filled into the cavity 200 through the filling hole 400, the aperture of the filling hole 400 should be larger than the diameter of the filling particles 300, and attention should be paid to the uniform distribution of the filling particles 300 during filling. After filling a certain number of filling particles 300, the filling hole 400 is sealed to prevent the filling particles 300 from spilling out of the filling hole 400 during the reciprocating motion of the reciprocating pump piston, affecting the normal operation of the reciprocating pump piston. The filling hole 400 can be sealed by full welding, and after welding, subsequent machining is performed on the reciprocating pump piston until the dimensional requirements of the process specification of the reciprocating pump are met.

[0039] In another embodiment, one end face of the housing 100 is not sealed, the filling particles 300 are filled into the cavity 200 from this end face, and then this end face is sealed by full welding. After welding, subsequent machining is performed on the reciprocating pump piston until the dimensional requirements of the process specification are met.

[0040] In one embodiment of the present invention, as Figure 1 shown, the cavity 200 occupies more than 50% of the volume of the housing 100.

[0041] In this embodiment, the cavity 200 occupies more than 50% of the volume of the housing 100. With such a setting, the volume of the cavity 200 is appropriate, so that enough filling particles 300 can be placed in the cavity 200. When the reciprocating pump piston makes a reciprocating motion, a sufficient number of filling particles 300 in the cavity 200 also move accordingly. Collisions and frictions occur between the filling particles 300 and between the filling particles 300 and the inner wall of the cavity 200, thereby consuming the vibration generated when the reciprocating force directly acts on the piston body during the reciprocating motion, and thus reducing the noise generated by the vibration. When the cavity 200 occupies less than 50% of the volume of the housing 100, the volume of the cavity 200 is too small to place enough filling particles 300, so that the vibration generated during the reciprocating motion cannot be well consumed, and the effect of reducing the noise generated by the vibration is poor.

[0042] In an embodiment of the present invention, as Figure 1 shown, a sound insulation layer 500 is provided on the inner wall of the cavity 200, and the sound insulation layer 500 is used to reduce the noise generated by the movement of the filling particles 300.

[0043] In this embodiment, a sound insulation layer 500 is provided on the inner wall of the cavity 200. The sound insulation layer 500 is made of a soft material with good sound absorption effect. The sound insulation layer 500 is used to reduce the noise generated by the movement of the filling particles 300. When the reciprocating pump piston makes a reciprocating motion, a sufficient number of filling particles 300 in the cavity 200 also move accordingly. Collisions between the filling particles 300 generate some noise, and collisions between the filling particles 300 and the inner wall of the cavity 200 also generate some noise. The sound insulation layer 500 absorbs these noises to prevent them from being transmitted out of the reciprocating pump piston, which can better reduce the noise of the reciprocating pump piston. At the same time, it also has a certain protective effect on the inner wall of the cavity 200, avoiding direct collision between the filling particles 300 and the inner wall of the cavity 200 and damaging the cavity 200, and improving the service life of the reciprocating pump piston.

[0044] In an embodiment of the present invention, as Figure 1 shown, the size of the filling particles 300 is from 0.1 mm to 5 mm.

[0045] In this embodiment, the size of the filling particles 300 is selected according to the size of the reciprocating pump piston. The size of the filling particles 300 is from 0.1 mm to 5 mm. The larger the size of the reciprocating pump piston, the longer the stroke of the reciprocating pump piston, the more work is done, and the greater the vibration generated by the reciprocating motion. At this time, the larger the size of the selected filling particles 300, the heavier the weight of the corresponding filling particles 300. The collisions that occur between the filling particles 300 consume more of the vibration generated during the reciprocating motion, and the better the noise reduction effect. At the same time, if the size of the filling particles 300 is greater than 5 mm, it will cause the size of the filling particles 300 to be too large, and the number of filling particles 300 that can be placed in the cavity 200 will decrease, and the vibration generated by the reciprocating pump piston during the reciprocating motion cannot be well consumed, and the noise reduction effect will decrease.

[0046] In an embodiment of the present invention, as Figure 1 shown, the filling particles 300 are metal particles or ceramic particles.

[0047] In this embodiment, the material of the filling particles 300 in the cavity 200 of the reciprocating pump piston is selected according to the power of the reciprocating pump. Specifically, when the power of the reciprocating pump is between 5 KW and 18 KW, the filling particles 300 are selected as ceramic particles. Because when the power of the reciprocating pump is within the above range, the power is small, the volume of the reciprocating pump is small, the stroke of the reciprocating pump piston is also short, and the vibration generated when the reciprocating pump makes a reciprocating motion is also small. Therefore, there is no need to select filling particles 300 with a large weight. The density of ceramics is small, and the size of the ceramic particles is selected from 0.1 mm to 1 mm according to the power of the reciprocating pump. The greater the power of the reciprocating pump, the larger the size of the ceramic particles. The ceramic particles selected according to the above various conditions have a light weight and can well consume the vibration generated when the low-power reciprocating pump makes a reciprocating motion, thereby effectively reducing noise. At the same time, it also avoids the situation where when selecting filling particles 300 with a large weight, the weight of the reciprocating pump piston is increased, and thus more kinetic energy needs to be consumed, saving energy.

[0048] When the power of the reciprocating pump is greater than 18 KW, the filling particles 300 are selected as metal particles. Because when the power of the reciprocating pump is within the above range, the power is large, the volume of the reciprocating pump is large, the stroke of the reciprocating pump piston is also long, and the vibration generated when the reciprocating pump makes a reciprocating motion is also large. Therefore, it is necessary to select filling particles 300 with a large weight. The density of metals is large, and the size of the metal particles is selected from 1 mm to 5 mm according to the power of the reciprocating pump. The greater the power of the reciprocating pump, the larger the size of the metal particles. The metal particles selected according to the above various conditions have a large weight and can well consume the vibration generated when the high-power reciprocating pump makes a reciprocating motion, thereby effectively reducing noise.

[0049] In an embodiment of the present invention, as Figure 1As shown, the metal particles are heavy metal particles and light metal particles.

[0050] In this embodiment, the metal particles are divided into heavy metal particles and light metal particles. Specifically, when the power of the reciprocating pump is greater than 38 KW, the filling particles 300 are selected as heavy metal particles. Because when the power of the reciprocating pump is within the above range, the power is relatively large, the volume of the reciprocating pump is relatively large, the stroke of the reciprocating pump piston is also relatively long, and when the reciprocating pump makes a reciprocating motion, the vibration generated is also relatively large. Therefore, heavy metal particles with a large weight need to be selected, and the size of the heavy metal particles is selected from 3 mm to 5 mm according to the power of the reciprocating pump. The greater the power of the reciprocating pump, the larger the size of the heavy metal particles. The heavy metal particles selected according to the above various conditions have a relatively large weight and can well consume the vibration generated when the high-power reciprocating pump makes a reciprocating motion, thereby effectively reducing the noise.

[0051] When the power of the reciprocating pump is between 18 KW and 38 KW, the filling particles 300 are selected as light metal particles. Because when the power of the reciprocating pump is within the above range, compared with the reciprocating pump with a power greater than 38 KW, the power is relatively small, and when the reciprocating pump makes a reciprocating motion, the vibration generated is also relatively small. Therefore, there is no need to select metal particles with a relatively large weight, and light metal particles can be selected. And the size of the light metal particles is selected from 1 mm to 3 mm according to the power of the reciprocating pump. The greater the power of the reciprocating pump, the larger the size of the light metal particles. The light metal particles selected according to the above various conditions have a moderate weight and can well consume the vibration generated when the reciprocating pump makes a reciprocating motion, thereby effectively reducing the noise. At the same time, it avoids the situation that the reciprocating pump with a power between 18 KW and 38 KW selects heavy metal particles, increasing the weight of the reciprocating pump piston and thus requiring more kinetic energy to be consumed, saving energy.

[0052] In an embodiment of the present invention, as Figure 1 shown, the ceramic particles account for 50% - 80% of the volume of the cavity 200.

[0053] In this embodiment, the ceramic particles account for 50% - 80% of the volume of the cavity 200, and an appropriate space is left in the cavity 200 so that when the reciprocating pump makes a reciprocating motion, the ceramic particles can collide in the cavity 200 to consume the vibration generated when the reciprocating pump makes a reciprocating motion, thereby effectively reducing the noise.

[0054] In an embodiment of the present invention, as Figure 1 shown, the metal particles account for 50% - 80% of the volume of the cavity 200.

[0055] In this embodiment, the metal particles account for 50% to 80% of the volume of the cavity 200, and an appropriate space is left in the cavity 200 so that when the reciprocating pump makes a reciprocating motion, the metal particles can collide in the cavity 200 to consume the vibration generated when the reciprocating pump makes a reciprocating motion, thereby effectively reducing the noise.

[0056] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, a reciprocating pump is provided, including: a worm and worm gear mechanism, and the worm and worm gear mechanism is connected to the reciprocating pump piston of any one of the above.

[0057] In this embodiment, the reciprocating pump is provided with a worm and worm gear mechanism, and the worm and worm gear mechanism is connected to the reciprocating pump piston of any one of the above. Therefore, the reciprocating pump has all the beneficial effects of the above reciprocating pump piston, which will not be elaborated here.

[0058] In the description of the present invention, the term "a plurality" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention; terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present invention, the description of terms such as "an embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic expressions of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0060] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A reciprocating pump piston, characterized in that, Comprising: A housing and a cavity, wherein the cavity is arranged in the housing; filling particles are arranged in the cavity; there are gaps between the filling particles, and the filling particles can move in the cavity, and the material of the filling particles is determined according to the power of the reciprocating pump; the filling particles are metal particles or ceramic particles; when the power of the reciprocating pump is between 5KW and 18KW, ceramic particles with a size between 0.1mm and 1mm are selected as the filling particles; when the power of the reciprocating pump is greater than 18KW, metal particles with a size between 1mm and 5mm are selected as the filling particles; the ceramic particles account for 50% - 80% of the volume of the cavity; the metal particles account for 50% - 80% of the volume of the cavity.

2. The reciprocating pump piston according to claim 1, wherein: the housing is provided with a filling hole; the filling hole is used for filling the filling particles.

3. The reciprocating pump piston according to claim 1, wherein: the cavity accounts for more than 50% of the volume of the housing.

4. The reciprocating pump piston according to claim 3, wherein: a sound insulation layer is arranged on the inner wall of the cavity, and the sound insulation layer is used for reducing the noise generated by the movement of the filling particles.

5. The reciprocating pump piston according to claim 1, wherein: the metal particles include: heavy metal particles and light metal particles.

6. A reciprocating pump, characterized in that, Comprising: A worm and worm gear mechanism, wherein the worm and worm gear mechanism is connected to the reciprocating pump piston according to any one of claims 1 to 5.

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