CN219974781U - Plunger pump unit structure - Google Patents

Abstract

The utility model relates to the technical field of pump equipment, in particular to a plunger pump unit structure, which aims to solve the technical problem that the reciprocating plunger in the prior art has defects in performance, and comprises the following steps: the ring tooth part is embedded and connected in the end cover shell of the end cover part; the planetary gear assembly is capable of being in meshed connection with the ring gear part, so that a pair of coaxial plunger ends can reciprocate in corresponding plunger cavities; the driving component is used for driving the action of the planetary gear assembly; the plunger cavity is integrated in the end cap member. The technical scheme has the advantages that the performance defect of reciprocating motion is improved, compared with the prior art, the vibration generated by the reciprocating motion is lower, and the loss caused by more driving component mechanisms can be reduced in a matching mode.

Description

Plunger pump unit structure

Technical Field

The utility model relates to the technical field of pump equipment, in particular to a plunger pump unit structure.

Background

In order to obtain the performance parameters of low flow and high lift, the high requirements of the use of chemical equipment under the current trend, such as the field of waste heat boilers, are met so as to prevent the generation of dew point temperature. High-performance high-speed pumps and plunger pumps are always important in industry, pump equipment with higher performance and higher stability is selected, and theoretical chemical production principle models can be effectively converted into production practice.

In the prior art, the plunger pump is a preferential choice for obtaining the technical parameters, the technical performance can be provided more stably, and the manufacturing cost of equipment and the annual maintenance cost are lower. In the prior art, the working principle of the plunger pump is generally an eccentric shaft mode, but the actual loss of the eccentric shaft type plunger pump is high, and the plunger pump has performance requirements on driving equipment such as a gearbox and the like, and also causes the rise of maintenance cost; for example, in Chinese patent, patent No. CN202122403945.6, the utility model discloses a plunger pump, and when the end cover and the main body of the plunger pump are connected, the valve core can be closed to the water inlet and outlet channels under the action of the elastic piece, so that the assembly is convenient and simple; however, when the cam structure in the plunger movement mode is matched with the plunger, not only is loss caused, but also vibration resistance is needed to be solved, and in the driving principle, the defect that the reciprocating direction movement performance of the plunger cannot be directly improved in practice can not be overcome by adopting three groups of planetary gears.

For the above reasons, the above two types of plunger pumps have room for improvement in terms of usability.

Disclosure of Invention

The utility model aims to solve the technical problem that the reciprocating plunger in the prior art has defects in performance, and provides a plunger pump unit structure.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a plunger pump unit structure comprising an end cap member and a drive member, comprising:

a ring tooth member embedded in an end cap housing connected to the end cap member;

a planetary gear assembly capable of meshing engagement with the ring gear member to enable a pair of coaxial plunger ends to reciprocate in corresponding plunger cavities;

wherein the driving component is used for driving the action of the planetary gear assembly;

wherein the plunger cavity is integrated on the end cap member.

Specifically, the pair of coaxial plunger ends are respectively:

a first plunger rod and a second plunger rod;

plunger parts are arranged at the end parts of the first plunger rod and the second plunger rod in the action direction;

the first plunger rod and the second plunger rod are reciprocally movable in a coaxial direction.

Specifically, the ring gear member is annular, and the inner periphery of the ring gear member constructs an inner meshing gear;

the ring gear member is disposed within the end cap housing adjacent the end cap member plunger port.

Specifically, the planetary gear assembly comprises:

and the input end of the transmission shaft is connected with the output end of the driving part, and the axis of the transmission shaft is concentric with the ring gear part.

The rotation center of the cam component is connected with the output end of the transmission shaft;

the cam component is provided with a first lug, and when the cam component rotates, one end of the first lug, which is far away from the cam component, rotates around a virtual circle track;

the diameter of the virtual circle is smaller than the diameter of the ring gear member.

Specifically, the planetary gear is also included and is rotatably connected to the end part of the first convex handle;

the planet gear is provided with planet teeth on its outer periphery so that the planet gear is in meshing connection with the ring gear member.

Specifically, the planetary gear also comprises a second convex handle, one end of the second convex handle is fixedly connected to the center of the planetary gear, and the other end of the second convex handle is rotationally connected with a rotating shaft part;

the track of the second convex handle rotating along with the planetary gear is the inner ring track of the ring gear part.

Specifically, one ends of the first plunger rod and the second plunger rod, which are far away from the respective plunger parts, are fixedly connected with the rotating shaft part.

Specifically, when the first plunger rod reaches the extreme distal position of the plunger cavity adjacent thereto, the second plunger rod reaches the extreme proximal position of the plunger cavity adjacent thereto.

The utility model has the following beneficial effects:

the technical scheme has the advantages that the performance defect of reciprocating motion is improved, compared with the prior art, the vibration generated by the reciprocating motion is lower, and the loss caused by more driving component mechanisms can be reduced in a matching mode.

Drawings

The utility model is described in further detail below with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of a unit structure of the present utility model;

FIG. 2 is a schematic structural view of a prior art end cap component;

FIG. 3 is a schematic view of the cam member of the present utility model;

FIG. 4 is a schematic view of a second lug of the present utility model;

FIG. 5 is a schematic view of a construction involving a prior art drive member;

FIG. 6 is a schematic illustration of the mechanical principles of the present utility model;

FIG. 7 is a schematic diagram of a motion test curve according to the present utility model.

Reference numerals in the drawings denote:

an end cap member 100, a drive member 200, a ring gear member 10, an end cap member 100, a cap housing 1, a planetary gear set 20, a plunger cavity 40, a first plunger rod 31, a second plunger rod 32, an inner gear tooth 11;

the transmission shaft 21, the cam member 22, the first lug 23, the virtual circle 201, the planetary gear 310, the second lug 42, the rotation shaft portion 41, the connection shaft 61, and the gear seat 62.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model; it should be noted that, for convenience of description, in the present utility model, a "left side" is a "first end", a "right side" is a "second end", an "upper side" is a "first end", and a "lower side" is a "second end" in the present view, and the description is for clearly expressing the technical solution, and should not be construed as unduly limiting the technical solution of the present utility model.

The utility model aims to solve the technical problem that the reciprocating plunger in the prior art has defects in performance, and provides a plunger pump unit structure. The technical solution is an improvement based on the prior art, the same parts are introduced in the cited patent, the utility model is not repeated, firstly, the plunger pump in the prior art comprises an end cover part 100 and a driving part 200, in the utility model, a ring tooth part 10 is designed and is embedded and connected in an end cover shell 1 of the end cover part 100, as shown in fig. 1, obviously, the embedded and connected in the technical solution is a mode which is easier to maintain, and can be designed to be integrally formed with the end cover shell 1 or adopt other mounting modes in practice; the planetary gear assembly 20 is in meshed connection with the ring gear member 10 by virtue of the planetary gear assembly 20 being in engagement with the ring gear member 10 so that a pair of coaxial plunger ends 30 can reciprocate in corresponding plunger cavities 40;

the existing drive member 200 can be utilized for driving the action of the planetary gear assembly 20; the driving part 200 is shown in fig. 5, and comprises a connecting shaft 61 and a gear seat 62, and in the connection driving assembly, the driving connection manner provided in the prior art or the cited patent can be referred to.

In the same manner as in the prior art, the plunger cavity 40 is integrated into the end cap member 100.

For specific illustration, referring to fig. 1 and 2, a pair of coaxial plunger ends 30 are respectively: first plunger rod 31 and second plunger rod 32; plunger portions 33 are provided at both ends of the first plunger rod 31 and the second plunger rod 32 in the operation direction; first plunger rod 31 and second plunger rod 32 are capable of reciprocating in the coaxial direction; corresponding to the upper and lower parallel bars forming the basic form of the plunger pump.

In terms of the operation mode, referring to fig. 1, the ring gear member 10 is designed to be a ring, and the inner periphery of the ring gear member 10 is configured with inner teeth 11;

it should be noted that: when the ring gear member 10 is disposed within the end cap housing 1, adjacent to the end cap member 100 plunger port 2, corresponds to yielding first plunger rod 31 and second plunger rod 32, making the space layout more reasonable.

Further described, the planetary gear assembly 20 includes: a transmission shaft 21, the input end of which is connected with the output end of the driving part 200, a cam part 22 concentric with the ring gear part 10, and the rotation center of which is connected with the output end of the transmission shaft 21; the cam member 22 has a first lug 23, and when the cam member 22 rotates, one end of the first lug 23 away from the cam member 22 rotates around the locus of a virtual circle 201; the diameter of the virtual circle 201 is smaller than the diameter of the ring gear member 10.

Specifically, the planetary gear 310 is rotatably connected to the end of the first lug 23; the outer periphery of the planetary gear 310 is provided with planetary teeth such that the planetary gear 310 forms a meshing connection with the ring gear member 10.

The planetary gear 310 is fixedly connected with the center of the shaft part 41, and the other end of the planetary gear 310 is rotatably connected with the center of the shaft part 41; the locus of rotation of the second lug 42 with the planetary gear 310 is the inner ring locus of the ring gear member 10.

According to the above connection manner, please refer to the schematic diagram of the mechanical principle provided in fig. 6, so as to illustrate the working principle of the present technical scheme as follows:

the movement track of the rotating shaft part 41 is in the vertical direction, namely the axial direction of the first plunger rod 31 and the second plunger rod 32, the cam part 22 rotates along with the driving shaft to drive the planetary gear 310 to move around the ring gear part 10 in a meshing way, and the second convex handle 42 is rotationally connected with the rotating shaft part 41 to realize the movement of the rotating shaft part 41 in the vertical direction, so as to realize the piston movement.

In a specific arrangement, referring to fig. 1, the ends of the first plunger rod 31 and the second plunger rod 32 remote from the respective plunger portions 33 are fixedly connected to the rotating shaft portion 41. Thus, when first plunger rod 31 reaches the extreme distal position of plunger cavity 40 adjacent thereto, second plunger rod 32 reaches the extreme proximal position of plunger cavity 40 adjacent thereto, and vice versa, so forth.

It should be noted that, the principle of fig. 6 has a correspondence with the simulation test of fig. 7, and the simulation test of fig. 7 is stroke and time, that is, the abscissa is time, and the ordinate is stroke, specifically, the first plunger rod 31; based on the configuration mode, the technical scheme can effectively provide a more stable operation mode in a travel range, and the simulation curve is a continuous sine curve; the technical scheme has the advantages that the performance defect of reciprocating motion is improved, compared with the prior art, the vibration generated by the reciprocating motion is lower, and the loss caused by more driving component mechanisms can be reduced in a matching mode.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (8)

1. A plunger pump unit structure including an end cap member (100) and a drive member (200), characterized by comprising:

a ring tooth member (10) embedded in an end cap housing (1) connected to the end cap member (100);

-a planetary wheel assembly (20) capable of being in meshing engagement with the ring gear member (10) so that a pair of coaxial plunger ends are capable of reciprocating in corresponding plunger cavities (40);

wherein the driving part (200) is used for driving the action of the planetary gear assembly (20);

wherein the plunger cavity (40) is integrated on the end cap member (100).

2. The plunger pump unit structure of claim 1, wherein the pair of coaxial plunger ends are respectively:

a first plunger rod (31) and a second plunger rod (32);

the first plunger rod (31) and the second plunger rod (32) are provided with plunger parts (33) at the ends in the action direction;

the first plunger rod (31) and the second plunger rod (32) are reciprocally movable in a coaxial direction.

3. The plunger pump unit structure according to claim 2, wherein the ring gear member (10) is in a circular ring shape, and an inner periphery of the ring gear member (10) is configured with an inner engagement tooth (11);

the ring gear member (10) is arranged adjacent to the end cap member (100) plunger port (2) when arranged in the end cap housing (1).

4. A plunger pump unit as set forth in claim 3, wherein the planetary gear assembly (20) comprises:

a transmission shaft (21) with an input end connected to the output end of the driving part (200) and an axis concentric with the ring gear part (10)

A cam member (22) whose rotation center is connected to the output end of the transmission shaft (21);

the cam component (22) is provided with a first lug (23), and when the cam component (22) rotates, one end of the first lug (23) away from the cam component (22) rotates around the track of a virtual circle (201);

the diameter of the virtual circle (201) is smaller than the diameter of the ring gear member (10).

5. The plunger pump unit structure as set forth in claim 4, further comprising a planetary gear (310) rotatably connected to an end of said first lug (23);

the outer periphery of the planetary gear (310) is provided with planetary teeth so that the planetary gear (310) is in meshing connection with the ring gear member (10).

6. The plunger pump unit structure as set forth in claim 5, further comprising a second lug (42) having one end fixedly connected to the center of the planetary gear (310) and the other end rotatably connected to a rotary shaft portion (41);

the track of the second lug (42) rotating along with the planetary gear (310) is the inner ring track of the ring gear member (10).

7. Plunger pump unit structure according to claim 6, wherein the ends of the first plunger rod (31) and the second plunger rod (32) remote from the respective plunger portions (33) are fixedly connected to the shaft portion (41).

8. Plunger pump unit arrangement according to claim 7, wherein said second plunger rod (32) reaches a limit near point position of a plunger chamber (40) adjacent thereto when said first plunger rod (31) reaches a limit far point position of a plunger chamber (40) adjacent thereto.