CN2612816Y

CN2612816Y - High-pressure plunger slurry pump

Info

Publication number: CN2612816Y
Application number: CN 03216069
Authority: CN
Inventors: 张守山
Original assignee: TAIAN CITY WATER CONSERVANCY MACHINERY FACTORY
Current assignee: Taishan Grouting Co., Ltd., Taian
Priority date: 2003-03-30
Filing date: 2003-03-30
Publication date: 2004-04-21
Anticipated expiration: 2013-03-30

Abstract

The utility model relates to a high pressure piston mud pump, which comprises a power end and a hydraulic end, wherein the power end comprises a crankshaft box, a main shaft, a drive gear, a crank-shaft mechanism and a crosshead and the like, the hydraulic end comprises elements such as a brace, a piston, a piston seal group, a long packing sleeve, a pump head, a pastes-absorption valve and a pastes-draining valve and the like, also comprises an unified inhaled channel and a discharge channel and the like, and a connecting rod and a crankshaft are connected using a cylindrical roller bearing. The utility model has the advantages of reasonable design parameters, excellent performance, long service life, low cost, convenient maintenance, and beautiful external form and the like. The utility model is a light, high-pressure and quantitative latest generation product of medium such as high density cement slurry and the like, and is capable of delivering water using a pump. The utility model is capable of being widely used in anti-seepage reinforcement of a foundation and a dam, fluid supply of underground hydraulic pillars, dredging of underground large pipes, pumps for chemical industry, and a lever crossing drilling of high pressure water jet and the like.

Description

The high-pressure plunger slurry pump

One, technical field:

The utility model relates to a kind of high-pressure plunger slurry pump, belongs to reciprocating pump technical field in the fluid machinery.

Two, background technique:

High pressure slurry pump is the capital equipment in present hydraulic engineering, the petroleum works.At present, the high pressure slurry pump kind of using in the hydraulic engineering is more, what domestic production was arranged also has an external import, adopt plain bushing to connect between its crankshaft-link rod of the high pressure slurry pump of domestic production mostly, because of friction ractor is big, the sliding difficulty in ravine, cause heating value big, working life is short, has also adopted the needle bearing connection, but manufacturing processing technic difficulty, requirement on machining accuracy height, manufacture cost are higher.In a word, domestic like product ubiquity is short working life, critical component repair rate height, and the processing technology complexity, shortcomings such as cost height, therefore, many users spare no high price to introduce the product or the critical component of Japan, but cost an arm and a leg inconvenient maintenance.

Three, summary of the invention:

It is simple that the purpose of this utility model provides a kind of manufacturing process, wear-resisting wiping, and easily damaged parts is changed convenient, and running is steady, the high pressure slurry pump of long service life.

The technical solution of the utility model is: the high-pressure plunger slurry pump is made up of power end and fluid end, on power end, be provided with crankcase body, main shaft, driving gear, crankshaft ﹠ connecting, cross is first-class, on fluid end, establish by pull bar, plunger, the plunger seal group, long packing cover, pump head body, pulp absorbing valve, component such as pulp-expelling valve, and compositions such as unified suction passage and discharge route, the crankshaft ﹠ connecting of power end is made up of three identical connecting rods and bent axle, adopt roller bearing to connect between connecting rod and the bent axle, one end of connecting rod is equipped with crosshead, links to each other with the plunger of fluid end.

The utility model is owing to adopted three pairs of crankshaft ﹠ connectings, and the GB roller bearing is adopted in the connection between connecting rod and the bent axle, have design parameter rationally, characteristics such as function admirable, long service life, cost be low, easy to maintenance, aesthetic in appearance.Can be widely used in ground, dyke seepage control consolidation process, underground hydraulic pressure pillar feed flow, underground large-scale pipeline desilting, chemicalpump, high pressure water jet level and pass through boring etc.

Four, description of drawings:

Fig. 1 is the main sectional view of the utility model high-pressure plunger slurry pump;

Fig. 2 is the utility model high-pressure plunger mud pump structure plan view shown in Figure 1;

Fig. 3 is the structural representation of the utility model crankshaft ﹠ connecting.

Five, specific embodiments

From the utility model high-pressure plunger slurry pump master illustrated in figures 1 and 2, plan view, as can be seen, this pump is made up of power end and fluid end two-part, on power end, be provided with crankcase body 2, main shaft 7, driving gear 6, driven gear 3, crankshaft ﹠ connecting, crosshead 9 component such as grade, crankshaft ﹠ connecting is made up of three identical connecting rods 8 and bent axle 1, motor that pump is outer or diesel engine are by the belt train, with transmission of power to the main shaft 7 of power end, two measure-alike driving gears 6 are housed on the main shaft 7, be meshing with each other with two measure-alike driven gears 3 on the bent axle 1, with transmission of power to bent axle 1, two driven gears 3 between three pairs of crankshaft ﹠ connectings, thereby make bent axle 1 evenly stressed.From the structural representation of crankshaft ﹠ connecting shown in Figure 3 as can be seen, adopt two pairs of roller bearings 5 to connect between connecting rod 8 and the bent axle 1, roller bearing 5 is GB/T283-93 N1024, when mounted roller bearing 5 is cut along axis, be enclosed within together on the bent axle 1 with an end of connecting rod 8, couple together by bolt 4, the other end of connecting rod 8 is equipped with crosshead 9, links to each other with the plunger 17 of fluid end by pull bar 10.Fluid end contains pull bar 10, plunger 17, plunger seal group 11, long packing cover 18, pump head body 14, pulp absorbing valve 15, pulp-expelling valve 13 component such as grade, its quantity is identical with the crankshaft ﹠ connecting quantity of power end, all be three covers, plunger 17 diameters are 45mm, working stroke is 120mm, also contain unified suction passage 16 and discharge route 12, sucking caliber is 2 inches, the discharge caliber is 25mm, plunger 17 adopts the special steel Quenching Treatment, sealing can be regulated by the pressure mother on the long packing cover 18, so that the acquisition reliable sealing effect, pump head body 14 is to be swaged into material all in one piece, and pulp absorbing valve 15 has identical structure with pulp-expelling valve 13, use the spring precompressed, simplified the structure of fluid end.Thereby make prime mover power, rotation motion is become the straight reciprocating motion of plunger, realize sucking or dispatch liquid by crankshaft ﹠ connecting.The utility model has only been enumerated a kind of mode of execution, and rated power is 90KW, and discharge flow rate is 95L/min, and all changes the part element size, and genus those skilled in the art expect without creative work, all within the utility model protection domain.

Claims

1, a kind of high-pressure plunger slurry pump is made up of power end and fluid end, and its power end is made up of crankcase body (2), main shaft (7), driving gear, crankshaft ﹠ connecting, crosshead (9) etc.; Its fluid end is by pull bar (10), plunger (17), plunger seal group (11), long packing cover (18), pump head body (14), pulp absorbing valve (15), pulp-expelling valve component such as (13), and unified suction passage (16) and discharge route compositions such as (12); It is characterized in that: the crankshaft ﹠ connecting of described power end is made up of three identical connecting rods (8) and bent axle (1), adopt roller bearing (5) to connect between described connecting rod (8) and the bent axle (1), one end of connecting rod (8) is equipped with crosshead (9), links to each other with the plunger (17) of fluid end.

2, high-pressure plunger slurry pump according to claim 1 is characterized in that: described roller bearing (5) is GB/T283-93 model N1024.