CN220248329U - Modularized reciprocating pumping equipment - Google Patents
Modularized reciprocating pumping equipment Download PDFInfo
- Publication number
- CN220248329U CN220248329U CN202320550287.XU CN202320550287U CN220248329U CN 220248329 U CN220248329 U CN 220248329U CN 202320550287 U CN202320550287 U CN 202320550287U CN 220248329 U CN220248329 U CN 220248329U
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- Prior art keywords
- assembly
- power end
- end assemblies
- driving shaft
- eccentric
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- 238000005086 pumping Methods 0.000 title claims abstract description 22
- 230000000712 assembly Effects 0.000 claims abstract description 31
- 238000000429 assembly Methods 0.000 claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 17
- 230000001105 regulatory effect Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model relates to the technical field of pumping equipment, in particular to modularized reciprocating pumping equipment, which can realize the adjustment of displacement by being provided with eccentric discs with various eccentric amounts and disassembling and connecting the eccentric discs with different specifications, has a very simple structure and convenient maintenance, does not need to carry out large-area modification on a pump body or add other devices, and has low equipment cost. In addition, the distance between the hydraulic end assembly and the connecting module can be finely adjusted to match the phenomenon that the stroke of the plunger is different when different eccentric discs are used, so that the stroke of the plunger can be effectively adjusted. A plurality of power end assemblies and fluid end assemblies are arranged on the same driving shaft, so that when the displacement is regulated, the quantity of the power end assemblies and the fluid end assemblies can be regulated wholly by additionally arranging or reducing the quantity of the power end assemblies and the fluid end assemblies, or the eccentric disc, the power end assemblies and the fluid end assemblies can be regulated simultaneously, the adjustable range of the displacement is greatly increased, and the application range is wide.
Description
Technical Field
The utility model relates to the technical field of pumping equipment, in particular to modularized reciprocating pumping equipment.
Background
Reciprocating pumps are used in many applications in the pumping equipment industry, such as plunger pumps. The main working principle is that the volume in the working chamber is changed by the reciprocating displacement of an element in the working chamber, such as a plunger, so that the conveyed fluid is discharged at a determined flow rate. In practical application, the required displacement is often changed, so that the pumping equipment is required to be capable of adjusting the displacement, and the need of re-selecting the pumping equipment is avoided. At present, the eccentricity of the eccentric rotary member is often adjusted by adding a variable adjusting device in the prior art so as to achieve the effect of adjusting the stroke of the plunger, but because the variable adjusting device is added in the pump body, the structure of the device is complex, the cost is high, various inconveniences exist during maintenance, and meanwhile, the adjustable displacement range of the variable adjusting device is limited and can be adjusted only in the length range of the eccentric rotary member.
Disclosure of Invention
In order to solve the technical problems, the utility model provides modularized reciprocating pumping equipment.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a modular reciprocating pumping apparatus comprising a drive shaft, a power end assembly and a fluid end assembly; the hydraulic end assembly comprises a cylinder body assembly and a plunger; the power end assembly comprises a power end body and a connecting rod, and the driving shaft is rotationally connected to the power end body; an eccentric disc is detachably sleeved on the outer peripheral side of the driving shaft, and the eccentric disc is detachably connected with the connecting rod in a rotating way, so that the eccentric disc can be replaced; the eccentric discs are configured in a plurality and with different amounts of eccentricity such that, in use, a particular eccentric disc can be selected according to the desired displacement; one end of the connecting rod, which is away from the power end module, is connected with the hydraulic end assembly through the connecting module; the connecting module comprises a connecting block body, wherein a cross head assembly is arranged in the connecting block body, and two ends of the cross head assembly are respectively connected with the connecting rod and the plunger; the distance between the cylinder body assembly and the connecting module is adjustable.
Further, the cross head assembly is connected with the plunger through a coupling device.
Further, a threaded adjusting cylinder is arranged at one end side of the cylinder body assembly, which is close to the connecting module, a threaded connecting cavity is formed in the connecting block body, and the threaded adjusting cylinder is in threaded connection with the threaded connecting cavity, so that the distance between the cylinder body assembly and the connecting module is adjustable.
As optimization, the periphery side threaded connection of screw thread adjustment section of thick bamboo has lock nut, one side that lock nut is close to the connecting block body is tightly supported with the connecting block body and is connected.
Further, the driving shaft is connected with a plurality of groups of power end assemblies and hydraulic end assemblies which are connected in parallel.
Further, the two ends of the driving shaft are respectively provided with a gland, and the glands are fixed with the power end body through connecting bolts.
Further, the eccentric discs are arranged in a plurality, and the eccentric amounts of the eccentric discs are different.
Compared with the prior art, the utility model has the following beneficial effects: according to the modularized reciprocating pumping equipment provided by the utility model, through the arrangement of the eccentric discs with various eccentric amounts, the adjustment of the displacement can be realized by disassembling and connecting the eccentric discs with different specifications, the whole pumping equipment has the advantages of very simple structure, convenience in maintenance, very convenient operation and maintenance and accessory replacement, no need of large-area refitting of a pump body or adding other devices, and low equipment cost. In addition, the distance between the hydraulic end assembly and the connecting module can be finely adjusted to match the phenomenon that the stroke of the plunger is different when different eccentric discs are used, so that the stroke of the plunger can be effectively adjusted. A plurality of power end assemblies and fluid end assemblies are arranged on the same driving shaft, so that when the displacement is regulated, the quantity of the power end assemblies and the fluid end assemblies can be regulated wholly by additionally arranging or reducing the quantity of the power end assemblies and the fluid end assemblies, or the eccentric disc, the power end assemblies and the fluid end assemblies can be regulated simultaneously, the adjustable range of the displacement is greatly increased, and the application range is wide.
Drawings
FIG. 1 is a schematic longitudinal sectional view of the present utility model;
fig. 2 is a schematic cross-sectional view of the present utility model.
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, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model provides modularized reciprocating pumping equipment which mainly comprises a hydraulic end assembly 2, a driving shaft 3 and a power end assembly 1, wherein the power end assembly 1 is used for providing reciprocating power for the hydraulic end assembly 2 under the driving of the driving shaft 3. The power end assembly 1 comprises a power end body 101 and a connecting rod 102, and the driving shaft 3 is rotatably connected to the power end body 101. The driving shaft 3 is detachably connected with the eccentric disc 103 in a sleeved mode, and the central axis of the eccentric disc 103 is not coincident with the central axis of the driving shaft, so that the driving shaft 3 can drive the eccentric disc 103 to synchronously rotate. The eccentric disc 103 is rotatably connected with the connecting rod, and the eccentric disc 103 is detachably connected with the connecting rod 102, and the length direction of the connecting rod 102 is perpendicular to the axial direction of the driving shaft 3. When driving the eccentric disc 103 to rotate, the driving shaft 3 can drive the connecting rod 102 to perform a horizontal back-and-forth reciprocating linear motion, and the rotation is converted into a linear motion. The end of the connecting rod 102 facing away from the eccentric disc 103 is connected to the fluid end assembly 2 to drive the fluid end assembly 2 for operation.
In the present utility model, the connecting rod 102 is connected to the fluid end assembly 2 through the connecting module 4, and the connecting module is fixed to the power end body 101 through bolts. The connection module 4 comprises a connection block body 401, and a cross head assembly 402 is arranged in the connection block body 401. The fluid end assembly 2 includes a cylinder assembly 201 and a plunger 202 that is axially slidable relative to the cylinder assembly 201. The end of the plunger 202 facing away from the cylinder assembly 201 is connected to the end of the connecting rod 102 facing away from the eccentric disc 103 by means of a crosshead assembly 402, and the crosshead assembly 402 is connected to the plunger 202 by means of a coupling means 403. When the driving shaft 3 drives the eccentric disc 103 to rotate, the eccentric disc 103 can pull the connecting rod 102 and the cross head assembly 402, and further pull the plunger 202 to axially reciprocate in and out relative to the cylinder assembly 201, so that pumping is realized.
The eccentric discs 103 are detachable and replaceable, and the eccentric discs 103 are configured in a plurality of different specifications, and the eccentric amount specifications of each eccentric disc 103 are different, so that when the displacement needs to be adjusted, the displacement adjustment can be realized by replacing the eccentric discs 103 with different eccentric amounts.
The distance between the cylinder assembly 201 and the connecting module 4 is adjustable to meet the variation of the plunger 202. A screw adjusting cylinder 203 is provided on one end side of the cylinder assembly 201 near the connection module 4, and the plunger 202 is connected to the crosshead assembly 402 through the screw adjusting cylinder 203. The connecting block body 401 is provided with a threaded connection cavity, and the threaded adjusting cylinder 203 is in threaded connection with the threaded connection cavity. The eccentric discs 103 with different eccentric amounts can drive the plunger 202 to move with different strokes, so that when the eccentric discs 103 are replaced, the hydraulic end assembly 2 is correspondingly adjusted through the threaded connecting cylinder 203 so as to meet and adapt to the stroke change of the plunger 202.
As another alternative embodiment, the screw thread adjusting cylinder 203 may be provided on the connection block body 401, and the screw thread connection chamber is opened on the cylinder assembly 401.
Preferably, a lock nut 204 is further screwed on the outer peripheral side of the screw adjustment cylinder 203, and a side of the lock nut 204 close to the connection block body 401 is tightly connected with the connection block body 401 so as to restrict and fix the position of the fluid end assembly 2 by the lock nut 204.
The detachable connection manner of the eccentric disc 103 with the driving shaft 3 and the connecting rod 102 may be a conventional manner, for example, a flat key, a shaft pin or a bolt, etc., so long as the detachment can be realized, and the present utility model is not particularly limited thereto.
A circular eccentric disc receiving groove 104 is formed in the connecting rod 102 such that the eccentric disc 103 is rotatably provided in the eccentric disc receiving groove 104.
An openable access cover 105 is also provided on the side of the power end body 101 facing away from the connection module 4, which access cover 105 can be opened for replacement when the eccentric disc 103 is replaced.
In the utility model, a plurality of groups of power end assemblies 1 and hydraulic end assemblies 2 which are connected on a driving shaft 3 in parallel, and pressing covers 5 are arranged at two end sides of the driving shaft 3, and the pressing covers 5 and a power end body 101 are fixed through connecting bolts 6 so as to fix the positions of the power end assemblies 1. The number of the power end assemblies 1 on the driving shaft 3 can be increased or decreased according to the requirement, so that the whole displacement can be regulated by changing the number of the power end assemblies 1 and the hydraulic end assemblies 2 on the driving shaft 3. The plurality of fluid end assemblies 2 are independent of each other, and the overall operation of the device is not affected if a problem occurs in one of the fluid end assemblies.
Working principle: the modular reciprocating pumping equipment provided by the utility model can be realized through three ways when the displacement is required to be regulated, wherein the first way is realized through replacing the eccentric discs 103, and the eccentric discs 103 with different specifications can be installed on the driving shaft 3 with the same specification within a certain range. When the eccentric disc 103 is replaced, the overhaul cover plate 105 is firstly disassembled, after the eccentric disc 103 is replaced, the locking nut 204 is loosened, the cylinder body assembly 201 is rotated to enable the threaded adjusting cylinder 203 to be adjusted in a rotating mode, the adjusting quantity is equal to the variable quantity of the eccentric size, after the adjustment is completed, the driving shaft 3 is driven to rotate slowly for 1-2 circles, and after the cylinder body assembly 201 is finely adjusted in the rotating process, the locking nut 203 is screwed down. The second mode can also be realized by increasing or decreasing the number of groups of matched power end assemblies 1 and hydraulic end assemblies 2 which are connected on the same driving shaft 3 in parallel. If a wide range of displacement adjustment is desired, the multiple sets of head assemblies 1 and 2 on the eccentric disc 103 and drive shaft 3 may also be adjusted simultaneously by combining the first and second modes.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A modular reciprocating pumping apparatus, characterized in that: the hydraulic end comprises a driving shaft, a power end assembly and a hydraulic end assembly; the hydraulic end assembly comprises a cylinder body assembly and a plunger; the power end assembly comprises a power end body and a connecting rod, and the driving shaft is rotationally connected to the power end body; an eccentric disc is detachably sleeved on the outer peripheral side of the driving shaft, and the eccentric disc is detachably connected with the connecting rod in a rotating way, so that the eccentric disc can be replaced; the eccentric discs are configured in a plurality and with different amounts of eccentricity such that, in use, a particular eccentric disc can be selected according to the desired displacement; one end of the connecting rod, which is away from the power end module, is connected with the hydraulic end assembly through the connecting module; the connecting module comprises a connecting block body, wherein a cross head assembly is arranged in the connecting block body, and two ends of the cross head assembly are respectively connected with the connecting rod and the plunger; the distance between the cylinder body assembly and the connecting module is adjustable.
2. The modular reciprocating pumping apparatus of claim 1, wherein: the cross head assembly is connected with the plunger through a coupling device.
3. The modular reciprocating pumping apparatus of claim 2, wherein: the cylinder body assembly is close to the one end side of connecting the module and is equipped with the screw thread adjustment section of thick bamboo, offered threaded connection chamber on the connecting block body, screw thread adjustment section of thick bamboo threaded connection is in threaded connection intracavity, makes the cylinder body assembly with the interval of connecting the module is adjustable.
4. A modular reciprocating pumping apparatus according to claim 3, characterized in that: the periphery side threaded connection of screw thread adjustment section of thick bamboo has lock nut, one side that lock nut is close to the connecting block body is tightly supported with the connecting block body and is connected.
5. The modular reciprocating pumping apparatus of claim 1, wherein: and a plurality of groups of power end assemblies and hydraulic end assemblies which are connected on the driving shaft in parallel.
6. The modular reciprocating pumping apparatus of claim 5, wherein: the two ends of the driving shaft are respectively provided with a gland, and the glands are fixed with the power end body through connecting bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550287.XU CN220248329U (en) | 2023-03-21 | 2023-03-21 | Modularized reciprocating pumping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320550287.XU CN220248329U (en) | 2023-03-21 | 2023-03-21 | Modularized reciprocating pumping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248329U true CN220248329U (en) | 2023-12-26 |
Family
ID=89264734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320550287.XU Active CN220248329U (en) | 2023-03-21 | 2023-03-21 | Modularized reciprocating pumping equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248329U (en) |
-
2023
- 2023-03-21 CN CN202320550287.XU patent/CN220248329U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |