Bearing downhole motor

 

(57) Abstract:

The invention relates to the drilling technique, namely to the supports downhole motors. The inventive bearing downhole motor includes a thrust ring grooves installed in flush sliding plates interacting with the flat end protrusions drive the heel, and a spacer sleeves located between the thrust bearings, equipped with the inner cylindrical surface of the sliding plates, interacting with the outer cylindrical surfaces of the disks heel. The invention provides increase time between work support. 1 Il.

The invention relates to the drilling technique, namely to the supports downhole motors, and can be used for drilling wells.

Known axial lead rubber bearing, consisting of pads, discs, outer rings, inner rings, shaft and housing /Century A. Dobkin, D. M. Nikitin, A. A. Utrobin. Maintenance and repair of hydraulic downhole motors. M. , Nedra, 1983, 28/. Bearing is designed as a multistage axial bearing. The thrust bearing of such support coated on the two end planes rubber.

The disadvantage of d is d support.

Known rubber-metal bearing comprising a thrust ring grooves installed in flush sliding plates, discs, rings, shaft, housing and spacer sleeves located between the thrust bearings /D. F., Balenko, F. D. Balenko, A. N. Gnoevykh. Screw downhole motors. M., Nedra, 1999, 62-66 C./.

The disadvantage of this design is the inability to bear radial load and insufficient turnaround time.

The objective of the invention is to increase the radial load capacity of a bearing hole of the engine. The technical result - increase time between work support.

The task and the technical result is achieved in that the bearing face of the engine including the thrust bearings with annular grooves installed in flush sliding plates, discs, rings, shaft, housing and spacer sleeves located between the thrust bearings, differs from the known fact that the spacer sleeve is fitted on the inner cylindrical surface friction plates that are installed with the interaction with the outer cylindrical surfaces of the disks heel made with the th ability of a support, it allows to increase the turnaround time of work supports in General.

Thus, the proposed solutions appear properties that do not match the properties of the known solutions to increase the efficiency and durability of the bearing, on what basis we can conclude that the proposed solution meets the criterion of "inventive step".

The drawing shows the proposed design supports downhole motor, which includes a thrust bearing with annular grooves 1. In the grooves of the thrust bearing flush has two mechanical anti-friction lining 2. With the plates of the thrust bearing interacts disk heel 3 made with double-sided flat end tabs, which is held on the shaft 4 by means of the ring 5. Surface friction disk heel made abrasion resistant. The heel support is fixed in the housing 6 spacer sleeve 7. The inner surface of the spacer sleeve feature anti-friction lining 8 installed with the opportunity to interact with the outer cylindrical surfaces of the disks heel.

Bearing downhole motor operates as follows. The axial load of the shaft 4 is passed through the ring 5 on the disk heel 3, which useres spacer sleeve 7 in the housing 6. Radial load from the shaft 4 through the disk 3 is transmitted to the friction lining 8 spacer sleeves 7 and further to the housing 6. Thus, the proposed bearing downhole motor is able to perceive all the loads encountered during drilling.

Bearing downhole motor comprising thrust bearings with annular grooves installed in flush sliding plates, discs, rings, shaft, housing and spacer sleeves located between the thrust bearings, characterized in that the spacer sleeve is fitted on the inner cylindrical surface friction plates that are installed with the interaction with the outer cylindrical surfaces of the disks heels, made with double-sided flat end tabs.

 

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