RU222965U1 - DEVICE FOR MEASURING WELL DEPTH AND DRILLING SPEED OF DRILLING MACHINE - Google Patents

Abstract

The utility model relates to the mining industry, namely to roller-cone drilling machines, and is used to control parameters during the drilling process.

The technical challenge is to create a more advanced and universal design of the device, which provides increased accuracy in measuring the depth of the well and the accuracy of measuring the drilling speed, durability and reliability against slippage of the proposed device.

The technical result is achieved in that the device for measuring the depth of the well and the drilling speed of the drilling rig is placed in the mast on the upper support of the feed mechanism block with a bypass wheel for the traction element, containing a drive wheel rigidly fixed to the bypass wheel, connected with the possibility of transmitting the measurement with an encoder, drive the wheel is engaged with a measuring wheel equipped with an output shaft connected through an elastic coupling to the encoder shaft. The drive and measuring wheels are made in the form of gears. Along with the above, the increased accuracy of measuring the depth of the well and the accuracy of measuring the drilling speed, durability and reliability against slippage of the inventive device are fully ensured.

Description

The utility model relates to the mining industry, namely to roller-cone drilling machines, and is used to control parameters during the drilling process.

A device for measuring the depth of a well and the drilling speed of a drilling rig is designed to control and measure the depth of a well during the drilling process, measuring the speed of drilling vertical and inclined wells during open-pit mining.

A device is known for measuring the depth of a well during drilling, containing a hydraulic pressure cylinder with a freely moving rod inside connected to a bar, and a transducer connected through a recording unit to an idle speed exclusion unit and equipped with a guide cylinder with a measuring drum installed in it with a cable and a counterweight, and the converter is made in the form of an induction coil and a core, inside of which a toothed disk is located with the possibility of free movement, while the latter is rigidly connected to the measuring drum, which is connected to the rod through a cable and a bar [1].

The disadvantages of this device are the presence of a large number of additional parts and large overall dimensions, which do not allow its use inside the mast of a drilling rig, as well as the resulting measurement error if the cable is applied in two or three layers on the measuring drum.

The prototype used is a well-known device for measuring the length of a string of pipes lowered into a well, containing a rope winch on which a traveling block with an elevator is installed for capturing and lifting pipes connected into the string, a spider with wedge grips, a mast with a crown block, and a measuring roller. The function of the measuring roller is performed by the crown block impeller. An encoder is installed on the crown block impeller, which includes two independent pulse channels, the relative position of which allows you to determine the direction of movement using the controller [2].

The disadvantage of the device described in the prototype is that the measuring roller does not perform measurements accurately enough due to difficult operating conditions, and also has the possibility of slipping due to the accumulation of dust and snow on the crown block impeller where the encoder is installed. In this regard, slippages significantly reduce the accuracy of measurements.

The technical problem to be solved by the claimed utility model is the creation of a more advanced and universal design of the device, which provides increased accuracy in measuring the depth of the well and the accuracy of measuring the drilling speed, durability and reliability against slippage of the claimed device.

The technical result is achieved by the fact that the device for measuring the depth of the well and the drilling speed of the drilling rig is placed in the mast on the upper support of the feed mechanism block with a bypass wheel for the traction Element, containing a drive wheel rigidly fixed to the bypass wheel, connected with the possibility of transmitting the measurement with an encoder,

the drive wheel is engaged with a measuring wheel equipped with an output shaft connected through an elastic coupling to the encoder shaft. The device is made of a drive wheel and a measuring wheel in the form of gears and meshing.

The utility model is illustrated in the drawings.

In fig. 1 is a general view of the device in which the drive wheel and the measuring wheel are made in the form of gears; FIG. 2 is a side view of the device, where the drive wheel and the measuring wheel are made in the form of gears.

A device for measuring the depth of the well and the drilling speed of the drilling rig is located in the mast on the upper support of the feed mechanism block with a deflection wheel 1 for the traction element 2 of a rope or chain (not shown). The drive wheel 3, rigidly mounted on the bypass wheel 1, rotates and is engaged with the measuring wheel 4 (Fig. 1). The drive wheel 3 and the measuring wheel 4 (Fig. 2) are made in the form of gears. The measuring wheel 4 contains an output shaft 5 installed in a support 6 with a bearing (not shown) and with the possibility of transmitting rotation through an elastic coupling 7 to the encoder shaft 8. The encoder is installed in a protective box 9 with the possibility of attachment to the mast frame 10. Data from the encoder is transmitted to the unit

processing and then to the operator console.

A device for measuring well depth and drilling speed operates as follows. The bypass wheel 1 of the upper block of the feed mechanism of the drilling rig is driven into rotation with a rigidly fixed drive wheel 3 under the action of the tension force of the traction element 2 from the feed cylinder to the head of the drill bit (not shown). The drive wheel 3, in engagement with the measuring wheel 4, transmits rotation through the output shaft 5 of the measuring wheel 4. The measuring wheel 4 with the output shaft 5 installed in the support 6 transmits rotation through the elastic coupling 7 to the encoder shaft 8. A protective box 9 with an encoder is attached to the frame of the mast 10. Data from the encoder is transmitted to the processing unit and then to the operator’s console.

Thus, the proposed technical solution for a device for measuring the depth of a well and the drilling speed of a drilling rig provides a more accurate transmission of rotation from the idler wheel with a rigidly fixed drive wheel in engagement with the measuring wheel through an elastic coupling to the encoder shaft. Along with the above, the increased accuracy of measuring the depth of the well and the accuracy of measuring the drilling speed, durability and reliability against slippage of the inventive device are fully ensured.

Information sources

1. Copyright certificate SU No. 1148991, class. E21 B 44/04, 1983.

2. Patent RU No. 204621, class. E21 B 44/00, 2020.

Claims (2)

1. A device for measuring the depth of the well and the drilling speed of the drilling rig, located in the mast on the upper support of the feed mechanism block with a bypass wheel for the traction element, containing a drive wheel rigidly fixed to the bypass wheel, connected with the possibility of transmitting rotation with the encoder shaft, characterized in that that the drive wheel is engaged with a measuring wheel equipped with an output shaft installed in a support and connected through an elastic coupling to the encoder shaft. 2. The device according to claim 1, characterized in that the drive wheel and the measuring wheel are made in the form of gear wheels that are in mesh.