CN201241803Y

CN201241803Y - Drilling pump

Info

Publication number: CN201241803Y
Application number: CNU2008201877383U
Authority: CN
Inventors: 郭伟; 陈有滨; 李洪贵; 闫学刚
Original assignee: SHANDONG QINGNENG POWER CO Ltd
Current assignee: SHANDONG QINGNENG POWER CO Ltd
Priority date: 2008-08-18
Filing date: 2008-08-18
Publication date: 2009-05-20
Anticipated expiration: 2018-08-18

Abstract

The utility model relates to a drilling pump, comprising a pump body and a power device, wherein the pump body comprises a frame assembly, a power end assembly and a hydraulic end assembly, the power end assembly comprises an eccentric shaft which power input end is connected with the power output end of the power device directly. The power transmission part eliminates a small gear shaft and a gear ring fixed on the crank shaft and meshed with the small gear shaft, thereby eliminating a gear pair to simplify the whole power transmission system, reduce the consumption in power transmission, simplify structure, reduce volume, reduce weight and avoid manufacturing the small gear shaft and the gear ring in production, to further reduce production cost and production period.

Description

A kind of drilling pump

Technical field

The utility model relates to a kind of drilling equipment, specifically, relates to short relatively drilling pump of a kind of manufacture cycle simple in structure.

Background technique

Drilling pump is widely used in the drilling process, its main effect is in drilling process mud to be crept into the injection down-hole with drill bit, play the cooling drill bit, clean drilling tool, the set borehole wall, driving is crept into, and the back landwaste of will drilling is taken back the effect on ground, drilling pump now commonly used all is to use diesel engine or motor as power source, clutch is as clutch for clutch control, drive small belt pulley by primary gear speed reducing box deceleration back, transmission of power is arrived the big belt pulley of fixedlying connected by belt transmission with the drilling pump pinion shaft, thereby driving pinion shaft rotates, pinion shaft meshes with the gear ring that is fixedly connected on the bent axle again, and then drives the bent axle rotation, and the drilling pump pinion shaft slows down by gear pair and drives bent axle work, the rotation motion of power source is converted into to-and-fro motion, realizes the effect of drilling pump.The mode of this transmission of power is very complicated, in the power transmission process loss big, integral layout is more loaded down with trivial details, production process is restricted more, the manufacture cycle of whole system is longer.

The model utility content

Problem to be solved in the utility model is at above problem, and the drilling pump that loss is less in a kind of simple in structure, power transmission process, the manufacture cycle is relatively short is provided.

For achieving the above object, the technological scheme that the utility model adopted is: a kind of drilling pump, comprise the pump housing and power plant, the described pump housing comprises support assembly, power end assembly and fluid end assembly, described power end assembly has an eccentric shaft, and described eccentric shaft power intake directly links to each other with the clutch end of power plant.

As a kind of optimized project, described power plant comprise power source, retarder, clutch and cardan shaft, are connected with clutch between described power source and the clutch input end, and described clutch output terminal is connected with cardan shaft.

Another kind of optimized project, described retarder is the two-stage speed-change gear box.

The optimized project of eccentric shaft, described eccentric shaft is made up of with the eccentric mass of fixedlying connected with multidiameter shaft multidiameter shaft.

The another kind of optimized project of eccentric shaft, described multidiameter shaft and be structure as a whole with eccentric mass.

Described eccentric shaft power intake is provided with coupling.

The utility model is taked above technological scheme, have the following advantages: owing to motivation transfer motion part has saved pinion shaft and has been fixed on the gear ring that meshes with pinion shaft on the bent axle, thereby reduced by a gear driving pair, whole dynamic transfer system is simplified, reduced the loss in the power transmission process, and designs simplification, volume reduces, and weight reduces, in process of production, to save the processing of pinion shaft and gear ring, and then cost of production is reduced, the manufacture cycle reduces.

The utility model is described in further detail below in conjunction with drawings and Examples.

Description of drawings

Accompanying drawing 1 is the structural representation of drilling pump in the utility model;

Accompanying drawing 2 is the power transmission system figure of drilling pump in the utility model;

Accompanying drawing 3 is a drilling well pump power end assembly structure schematic representation in the utility model.

Embodiment

Embodiment 1, as Fig. 1, shown in Figure 2, a kind of drilling pump, comprise the pump housing and power plant, the pump housing is fixed on the base 12, and the pump housing comprises support assembly 1, power end assembly 2 and fluid end assembly 3, power end assembly 2 has an eccentric shaft 4, and eccentric shaft 4 power intakes directly link to each other with the clutch end of power plant.

As shown in Figure 2, power plant comprise power source 5, retarder 7, clutch 6 and cardan shaft 8, are connected with clutch 6 between power source 5 and the clutch input end, and clutch 7 output terminals are connected with cardan shaft 8, and retarder 7 is the two-stage speed-change gear box.

As shown in Figure 3, eccentric shaft 4 is made up of with three eccentric mass 4b of fixedlying connected with multidiameter shaft 4a multidiameter shaft 4a, and eccentric shaft 4 power intakes are provided with 9, three eccentric mass 4b of coupling and link to each other with three connecting rods 10 by connecting rod bearing 11.

Power source 5 is made up of diesel engine or motor, cut-out or input by clutch 6 control power, clutch 6 is connected between power source 5 and retarder 7 input ends, retarder 7 output terminals are connected with cardan shaft 8, cardan shaft 8 is connected with eccentric shaft 4 power intakes by coupling 9, make the power input shaft of eccentric shaft 4 as drilling pump, thereby the gear ring that has dispensed pinion shaft and fixedlyed connected with eccentric shaft 4, change retarder 7 into the two-stage speed-change gear box by the one-level speed-change gear box simultaneously, eccentric shaft 4 is made up of with three eccentric mass 4b of fixedlying connected with multidiameter shaft 4a multidiameter shaft 4a, three eccentric mass 4b link to each other with three connecting rods 10 by connecting rod bearing 11, connecting rod 10 the other ends link to each other with fluid end assembly 3, by eccentric shaft 4 rotation motion is converted into the to-and-fro motion of connecting rod 10, thereby realizes the running of drilling pump.

Embodiment 2, and the eccentric shaft 4 of drilling pump is the integrative-structure that has three crank throws that obtains by the forging mode, and other structure of drilling pump is identical with embodiment 1.

Claims

1, a kind of drilling pump, comprise the pump housing and power plant, the described pump housing comprises support assembly (1), power end assembly (2) and fluid end assembly (3), described power end assembly (2) has an eccentric shaft (4), it is characterized in that: described eccentric shaft (4) power intake directly links to each other with the clutch end of power plant.

2, a kind of drilling pump as claimed in claim 1, it is characterized in that: described power plant comprise power source (5), retarder (7), clutch (6) and cardan shaft (8), be connected with clutch (6) between described power source (5) and the clutch input end, described clutch (7) output terminal is connected with cardan shaft (8).

3, a kind of drilling pump as claimed in claim 2 is characterized in that: described retarder (7) is the two-stage speed-change gear box.

4, a kind of drilling pump as claimed in claim 3 is characterized in that: described eccentric shaft (4) is made up of with the eccentric mass (4b) of fixedlying connected with multidiameter shaft (4a) multidiameter shaft (4a).

5, a kind of drilling pump as claimed in claim 4 is characterized in that: described multidiameter shaft (4a) and be structure as a whole with eccentric mass (4b).

6, a kind of drilling pump as claimed in claim 5 is characterized in that: described eccentric shaft (4) power intake is provided with coupling (9).