High-pressure plunger pump fluid end assembly with quick disassembly and assembly structure

Abstract

The utility model provides a high-pressure plunger pump fluid end assembly with a quick disassembly and assembly structure, which belongs to the technical field of hydraulic transmission and comprises a high-pressure plunger pump main body. Comprising a pump body, a fluid end body arranged on the outer side of the pump body, connecting plates fixedly connected to the surfaces of the two sides of the fluid end body correspondingly, positioning holes formed in the surfaces of the two sides of the pump body and the connecting plates correspondingly, and inserting rods inserted into inner cavities of the positioning holes; the splicing mechanism comprises a fixing plate fixedly connected to the outer side of the connecting plate, a supporting plate fixedly installed on the outer surface of the fixing plate, a hand wheel arranged on the outer side of the supporting plate, a threaded rod fixedly connected to the penetrating end of the hand wheel, and an inner threaded sleeve in threaded connection to the outer surface of the threaded rod. The hydraulic end body can be quickly disassembled and assembled through the cooperation of all the components in the splicing mechanism under the condition that a large number of bolts and complex disassembling and assembling tools are not needed, the workload of maintenance personnel is remarkably reduced, and the precision and the performance stability of equipment are ensured by simplifying the complex disassembling and assembling process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic transmission, specifically relates to a high pressure plunger pump hydraulic end assembly with quick dismounting structure. BACKGROUND

[0002] The main role of the high pressure plunger pump is to convert mechanical energy into hydraulic energy, drive various types of hydraulic equipment by generating high pressure liquid, the high pressure plunger pump can generate higher working pressure than other types of pumps, which makes it very suitable for use in hydraulic systems that require high pressure, such as injection molding machine, die casting machine, oil well fracturing, etc., due to its design structure, the high pressure plunger pump can realize the accurate control of output flow and pressure, which is crucial for applications that require stable and adjustable pressure source, such as hydraulic test bench, hydraulic lifting platform, etc.

[0003] The prior art patent with the patent number 202022547143.8 is a kind of high pressure plunger pump complete equipment, including double output shaft motor, two high pressure plunger pumps, front water supply pump and tee outlet, the crankshaft input end of two high pressure plunger pumps is connected with the two output shafts of double output shaft motor through coupling, compared with the traditional motor high pressure plunger pump complete equipment, in the case of reaching the same technical output pressure and flow, the volume and floor area are obviously smaller than two motor and two high pressure plunger pump and two front water supply pump, its hydraulic end assembly is usually fixed and installed on the outside of pump body by bolt, although this design can provide sufficient mechanical strength and sealing property, but in actual use, it brings the problems of dismounting complex, inconvenient maintenance, in the case of field operation or needing to frequently replace wearing parts, dismounting bolt and reinstalling hydraulic end assembly through bolt is a very time-consuming and labor-intensive process, in addition, the complex dismounting process can also damage the seal or other precision components, further increasing the cost of repair and replacement. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of high pressure plunger pump hydraulic end assembly with quick dismounting structure, to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of high pressure plunger pump hydraulic end assembly with quick dismounting structure, including high pressure plunger pump main body, including pump body, the hydraulic end body of setting in the outside of the pump body, the connecting plate of being fixedly connected respectively in the two side surfaces of the hydraulic end body, the positioning hole of being respectively opened in the two side surfaces of the pump body and connecting plate, and the plug-in rod of being inserted in the inner cavity of the positioning hole;

[0007] The splicing mechanism comprises a fixed plate fixedly connected to the outer side of the connecting plate, a supporting plate fixedly installed on the outer surface of the fixed plate, a hand wheel arranged on the outer side of the supporting plate, a threaded rod fixedly connected to the through end of the hand wheel, an internal thread sleeve threadedly connected to the outer surface of the threaded rod, an extrusion block fixedly installed on the outer end surface of the internal thread sleeve, and a limiting guide rail fixedly connected to the outer surface of the fixed plate and matched with the extrusion block.

[0008] As a preferred scheme of the utility model, the hand wheel is provided with a bearing sleeve matched with rotation at the connecting position of the hand wheel and the supporting plate, and the extrusion block is slidably sleeved on the outer surface of the limiting guide rail.

[0009] As a preferred scheme of the utility model, the splicing mechanism further comprises a pressing assembly matched with the plug-in rod and a limiting assembly matched with the pressing assembly.

[0010] As a preferred scheme of the utility model, the pressing assembly comprises a fixed frame fixedly connected to the outer surface of the fixed plate, a rotating column fixedly installed on the inner surface of the fixed frame, a pressing block sleeved on the outer surface of the rotating column and matched with the plug-in rod, and a roller fixedly installed on the inner surface of the pressing block through a bearing and matched with the extrusion block.

[0011] As a preferred scheme of the utility model, the inner surface of the pressing block is in rotating contact with the outer surface of the rotating column, and the outer surface of the roller is in sliding contact with the outer surface of the extrusion block.

[0012] As a preferred scheme of the utility model, the limiting assembly comprises a ratchet wheel fixedly sleeved on the outer surface of the hand wheel, a pawl engaged with the outer surface of the ratchet wheel, and a spring fixedly installed on the outer surface of the supporting plate and matched with the pawl.

[0013] As a preferred scheme of the utility model, the outer end surface of the pawl is fixedly installed on the outer surface of the supporting plate through a bearing, and the outer end surface of the spring is fixedly connected with the top of the pawl.

[0014] Compared with the prior art, the utility model has the advantages that: through the cooperation of various components in the splicing mechanism, the hydraulic end body can be quickly disassembled and assembled without using a large number of bolts and complex disassembling tools, the workload of maintenance personnel is significantly reduced, the accuracy and performance stability of the equipment are ensured through simplifying the complex disassembling process, the labor intensity is greatly reduced, and the disassembling and assembling tasks can be quickly responded and completed. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present application Figure 1 It is a schematic diagram of the overall structure of the present application

[0018] Figure 3 It is a schematic diagram of the overall structure of the present application

[0019] Figure 4 It is a schematic diagram of the overall structure of the present application Figure 3 It is a schematic diagram of the overall structure of the present application

[0020] In the figure: 100, high-pressure plunger pump body; 101, pump body; 102, fluid end body; 103, connecting plate; 104, positioning hole; 105, plug-in rod; 200, splicing mechanism; 201, fixed plate; 202, support plate; 203, hand wheel; 204, threaded rod; 205, internal thread sleeve; 206, extrusion block; 207, limiting guide rail; 208, pressing assembly; 208a, fixed frame; 208b, rotating column; 208c, pressing block; 208d, roller; 209, limiting assembly; 209a, ratchet wheel; 209b, pawl; 209c, spring. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0023] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0024] Embodiment

[0025] Reference Figures 1-4 For the embodiment of the utility model, the embodiment provides a high-pressure plunger pump fluid end assembly with a quick disassembly and assembly structure, which can realize the effect of quickly disassembling and assembling the fluid end body 102 without using a large number of bolts and complex disassembly and assembly tools.

[0026] The high-pressure plunger pump body 100 comprises a pump body 101, a fluid end body 102 arranged on the outer side of the pump body 101, connecting plates 103 fixedly connected to the two side surfaces of the fluid end body 102 respectively, positioning holes 104 respectively arranged on the two side surfaces of the pump body 101 and the connecting plates 103, and a plug-in rod 105 inserted into the inner cavity of the positioning hole 104.

[0027] It should be noted that the pump body 101 is the core part of the entire high-pressure plunger pump body 100, the fluid end body 102 directly participates in the suction and discharge of liquid, and the connecting plates 103 and the positioning holes 104 are used for supporting and positioning the plug-in rod 105.

[0028] The splicing mechanism 200 comprises a fixed plate 201 fixedly connected to the outer side of the connecting plate 103, a supporting plate 202 fixedly installed on the outer surface of the fixed plate 201, a hand wheel 203 arranged on the outer side of the supporting plate 202, a threaded rod 204 fixedly connected to the penetrating end of the hand wheel 203, an internal thread sleeve 205 threadedly connected to the outer surface of the threaded rod 204, an extrusion block 206 fixedly installed on the outer end surface of the internal thread sleeve 205, and a limiting guide rail 207 fixedly connected to the outer surface of the fixed plate 201 and used in cooperation with the extrusion block 206.

[0029] It should be noted that rotating the hand wheel 203 can drive the threaded rod 204 to rotate, and the internal thread sleeve 205 drives the extrusion block 206 to move axially along the limiting guide rail 207 with the rotation of the threaded rod 204.

[0030] Specifically, bearings are installed at the connection between the hand wheel 203 and the supporting plate 202 for cooperation with rotation, and the extrusion block 206 is slidingly sleeved on the outer surface of the limiting guide rail 207.

[0031] Further, the splicing mechanism 200 further comprises a pressing assembly 208 used in cooperation with the plug-in rod 105, and a limiting assembly 209 used in cooperation with the limiting pressing assembly 208.

[0032] Preferably, the pressing assembly 208 comprises a fixed frame 208a fixedly connected to the outer surface of the fixed plate 201, a rotating column 208b fixedly installed on the inner surface of the fixed frame 208a, a pressing block 208c sleeved on the outer surface of the rotating column 208b and matched with the insertion rod 105, and a roller 208d fixedly installed on the inner surface of the pressing block 208c through a bearing and matched with the extruding block 206.

[0033] It should be further pointed out that the roller 208d is extruded by the extruding block 206, and when the roller 208d is pressed by the extruding block 206, the pressing block 208c will rotate around the rotating column 208b, so that the pressing block 208c tightly presses the insertion rod 105 in the positioning hole 104.

[0034] It should be pointed out that the inner surface of the pressing block 208c is in rotating contact with the outer surface of the rotating column 208b, and the outer surface of the roller 208d is in sliding contact with the outer surface of the extruding block 206.

[0035] Further, the limiting assembly 209 comprises a ratchet wheel 209a fixedly sleeved on the outer surface of the hand wheel 203, a pawl 209b engaged with the outer surface of the ratchet wheel 209a, and a spring 209c fixedly installed on the outer surface of the support plate 202 and matched with the pawl 209b.

[0036] When the hand wheel 203 rotates, the ratchet wheel 209a can also rotate synchronously, the pawl 209b is temporarily extruded by the ratchet wheel 209a for a distance, and then the pawl 209b is quickly reset by the reaction force of the spring 209c, so that the pawl 209b and the ratchet wheel 209a always remain engaged, avoiding the accidental reverse rotation of the hand wheel 203 causing the pressing block 208c to loosen.

[0037] Specifically, the outer end surface of the pawl 209b is fixedly installed on the outer surface of the support plate 202 through a bearing, and the outer end surface of the spring 209c is fixedly connected with the top of the pawl 209b.

[0038] In use, the insertion rod 105 is inserted into the positioning hole 104 through the connecting plate 103 to ensure accurate positioning, and then the rotating hand wheel 203 is rotated to drive the threaded rod 204 to rotate, the inner threaded sleeve 205 moves axially along the limiting guide rail 207 with the rotation of the threaded rod 204, the roller 208d is extruded by the extruding block 206, when the roller 208d is pressed by the extruding block 206, the pressing block 208c will rotate around the rotating column 208b, so that the pressing block 208c tightly presses the insertion rod 105 in the positioning hole 104;

[0039] When the hand wheel 203 rotates, the ratchet wheel 209a rotates synchronously, the pawl 209b is temporarily squeezed away by the ratchet wheel 209a, and then the pawl 209b is quickly reset by the reaction force of the spring 209c, so that the pawl 209b and the ratchet wheel 209a are always in engagement, and the pressure block 208c is prevented from loosening due to accidental reverse rotation of the hand wheel 203.

[0040] In summary, through the cooperation of various components in the splicing mechanism 200, the hydraulic end body 102 can be quickly disassembled and assembled without using a large number of bolts and complex disassembly tools, the workload of maintenance personnel is significantly reduced, the accuracy and performance stability of the equipment are ensured by simplifying the complex disassembly process, and the effect of greatly reducing the labor intensity and responding and completing the disassembly task more quickly is achieved.

[0041] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages described in the subject matter of this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise changed, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the subject matter. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to particular embodiments described, but extends to various modifications, combinations, and permutations of the described embodiments.

[0042] Furthermore, in the interest of providing a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those unrelated to the best mode of practicing the present application, or those unrelated to enabling the claimed application).

[0043] It is to be understood that the development of the particular implementations described herein was not determined merely by the availability of certain items or materials. Rather and more generally, specific implementations can be determined, for example, based on the particular requirements of the instrument or system to which that implementation relates. For example, a specific implementation of a reagent or kit can be determined based on the number of assays or assays types that are to be performed by the instrument or system that implementation relates to.

[0044] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A high pressure piston pump hydraulic end assembly having a quick disconnect structure, characterized by: The utility model relates to a high pressure plunger pump body (100) and splicing mechanism (200), belong to the field of high pressure plunger pump. The utility model discloses a high pressure plunger pump body (100), including pump body (101), the liquid end body (102) of setting in the pump body (101) outside, the connecting plate (103) fixed connection in the liquid end body (102) both sides surface respectively, the positioning hole (104) respectively set up in the pump body (101) and connecting plate (103) both sides surface, and the plug-in rod (105) of inserting in the inner chamber of positioning hole (104); Splicing mechanism (200), including fixedly connected with the fixed plate (201) outside connecting plate (103), fixedly installed support plate (202) the outer surface of fixed plate (201), set up hand wheel (203) the outside of support plate (202), fixedly connected with the threaded rod (204) of hand wheel (203) through -end, the internal thread sleeve (205) of screwing on the outer surface of threaded rod (204), fixedly installed extrusion block (206) the outer end surface of internal thread sleeve (205), and fixedly connected with the limiting guide rail (207) of fixed plate (201) outer surface and cooperate extrusion block (206) use.

2. The high pressure piston pump fluid end assembly with quick disassembly structure according to claim 1, characterized in that: The connecting place of hand wheel (203) and support plate (202) is equipped with the bearing sleeve of cooperation rotation, and extrusion block (206) is slidably sleeved on the outer surface of limiting guide rail (207).

3. The high pressure piston pump fluid end assembly with quick disassembly structure of claim 2, wherein: Splicing mechanism (200) still includes the lower pressure subassembly (208) of cooperation fixed plug-in rod (105) use, and the limiting component (209) of cooperation limiting lower pressure subassembly (208) use.

4. The high pressure piston pump fluid end assembly with quick disassembly structure of claim 3, wherein: The lower pressure subassembly (208) includes fixedly connected with the fixed frame (208a) of fixed plate (201) outer surface, fixedly installed rotatable column (208b) the inner surface of fixed frame (208a), the pressure block (208c) of sleeveing the outer surface of rotatable column (208b) and cooperation plug-in rod (105) use, and the gyro wheel (208d) of bearing fixed installation the inner surface of pressure block (208c) and cooperation extrusion block (206) use.

5. The high pressure piston pump fluid end assembly with quick disassembly structure of claim 4, wherein: The inner surface of pressure block (208c) and the outer surface of rotatable column (208b) rotation contact, and the outer surface of gyro wheel (208d) and the outer surface of extrusion block (206) sliding contact.

6. The high pressure piston pump fluid end assembly with quick disassembly structure of claim 5, wherein: The limiting component (209) includes the ratchet wheel (209a) of fixed sleeveing the outer surface of hand wheel (203), the pawl (209b) engaged on the outer surface of ratchet wheel (209a), and the spring (209c) of fixed installation the outer surface of support plate (202) and cooperation pawl (209b) use.

7. The high pressure piston pump fluid end assembly with quick disassembly structure of claim 6, wherein: The outer end surface of pawl (209b) is fixedly installed on the outer surface of support plate (202) through the bearing, and the outer end surface of spring (209c) and the top of pawl (209b) are fixedly connected.

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