CN2142895Y

CN2142895Y - Mechanical speed-changing drive device for slurry pump of drilling machine

Info

Publication number: CN2142895Y
Application number: CN 92245353
Authority: CN
Inventors: 朱宏; 邹正; 乌传荣
Original assignee: Sinopec Jiangsu Petroleum Exploration Bureau
Current assignee: Sinopec Jiangsu Petroleum Exploration Bureau
Priority date: 1992-12-30
Filing date: 1992-12-30
Publication date: 1993-09-29
Anticipated expiration: 2002-12-30

Abstract

The utility model relates to a mechanical speed-changing drive device for slurry pump of a drilling machine. A machinery speed-changing mechanism is arranged between a motive power output terminal of a drilling machine and a drive pair of a slurry pump, convenient offering the displacement of multi gears slurry pump, changing the reverse operating slurry pump into forward operating slurry pump, and improving the working condition. The utility model has smallest modifier used in the drilling machine such as the 'Daqing' 130.

Description

Mechanical speed-changing drive device for slurry pump of drilling machine

The utility model relates to the rig transmission device, particularly the mechanical variable speed drive of rig slurry pump.

The transmission device of present petroleum machinery rig, slurry pump adopts the mode transmission of gear reduction box-belt transmission or fluid torque converter-chain transmission more, slurry pump all can not speed change, can not provide the slurry pump discharge capacity of different class to satisfy the requirement of various drillng operation different displacements.As run into operations such as getting core, formation fracture pressure test, startup mud motor, and requiring low discharge capacity output, the way that the scene have to take to change small size cylinder sleeve or disengaging section valve realizes.So not only bothersome time-consuming, labor intensity is big, also causes unreasonable that equipment uses simultaneously, has also increased unsafe factor.So some rig is not stinted the increase expense, be equipped with the slurry pump of a little discharge capacity in addition again.

The purpose of this utility model is to realize many grades of outputs of slurry pump discharge capacity easily, satisfies the requirement of various drillng operations to different mud displacements.

The utility model is achieved in that at clutch to the mechanical speed change mechanism that sets up a twin shaft or three many grades of outputs between the band pump drive pair, and the input end of this mechanism and output terminal are connected with the parts two ends of institute access device respectively.Be provided with gear driving pair, tooth clutch and engage a gear mechanism etc. in the mechanism.For ease of using on existing rig, the mechanical speed change mechanism that the utility model proposed can be installed between band pump clutch and the band pump drive pair.This gear is designed to 2 to 6 grades, and velocity ratio 0.8:1 to 10:1 is to satisfy the requirement of various drillng operations to different displacements.Adopt twin shaft or three speed changing structures, its objective is to guarantee that slurry pump all is in the forward operating condition.

Adopt the utility model, many grades of outputs of mud pump delivery energy, easy to operate and safe, can adjust the mud pump delivery according to the variation of different drillng operations or down-hole situation at any time, and obtain comparatively reasonably hydraulic parameters, improve drilling well timeliness and economic benefit.Simultaneously, make the slurry pump of a part of antiport become the forward running, thereby reduced the vibration of the dynamic load and the crosshead of pump, improved the sealing and the greasy property of pump.During as the transmission of usefulness v belt, reduced the possibility of belt job-hopping.The utility model not only can be used for the design of new rig, also can be used on the pump group of drive the transformation of more being suitable for the existing machinery rig.China is used maximum grand celebration 130 types and ZJ45J type rig, adopt the utility model, former transmission unit only need be done very little change, just can realize the many grades of output of slurry pump discharge capacity and the forward running of pump, and obtain considerable benefit.

Fig. 1 is a slurry pump mechanical speed change mechanism connection schematic representation, wherein

1-is with pump clutch; The 2-input shaft; 3-gear body; The 4-gear pair; The 5-tooth clutch; The 6-output shaft; 7-band pump belt pulley;

Embodiment: gear is equipped with systems such as assembly such as many grades of gear driving pairs, tooth clutch, engage a gear mechanism, block bearing and lubricated, cooling.Be used for grand celebration 130 type rigs, then gear adopts cross-compound arrangement, and its velocity ratio is 0.8:1 to 5:1, divides 3 grades of outputs, gear be installed in No. 2 and No. 3 transmission units on, the center height of gear diaxon is consistent with the axle center height of No. 2, No. 3 transmission units that insert respectively.Its connection is as shown in Figure 1: the input end of the input shaft 2 of gear is connected with the band pump clutch 1 of former unit, and the output terminal of output shaft 6 is connected with the band pump belt pulley of former unit.

Claims

1, a kind of mechanical variable speed drive of rig slurry pump is characterized in that adopting the mechanical speed change mechanism of a twin shaft or three many grades of outputs to be connected with band pump drive parafacies.

2, mechanical variable speed drive according to claim 1 is characterized in that gear is output as 2～6 grades.

3, mechanical variable speed drive according to claim 1 and 2, the velocity ratio that it is characterized in that gear is 0.8:1 to 10:1.

4, mechanical variable speed drive according to claim 1 is characterized in that mechanical speed change mechanism is installed between band pump clutch and the band pump drive pair.