CN101769128B - Connecting mechanism for dual shaft drilling machine - Google Patents

Abstract

The invention relates to a connection mechanism of a double shaft drilling rig, which comprises a hollow connection arm and a connection seat, a lifting cylinder, a clamping cylinder and a fork. One end of the connecting arm is installed on the top disk connecting seat of the drilling rig through a pin shaft, and the other end is fixedly connected with the connecting seat. The fixed end of the clamping oil cylinder is installed in the connecting arm with a pin, and the fork is installed on the extended end of the clamping oil cylinder and is movably placed in the connecting seat. The protruding end of the lifting oil cylinder is installed on the connecting arm through a pin shaft, and the other end is installed on the top plate connecting seat through a pin shaft, and the installation position of the lifting oil cylinder on the top plate connecting seat is higher than that of the connecting arm. Location. The connection mechanism makes the connection of the two drilling frames of the duplex shaft drilling rig stable and reliable, the operation is simple, and the connection can be easily disassembled after the work is completed, which not only reduces the labor intensity of the workers, but also improves the work efficiency.

Description

Connection Mechanism of Duplex Shaft Drilling Rig

technical field

The invention belongs to a part of a duplex shaft drilling rig for vertical shaft construction in mine construction, and in particular relates to a drill frame connecting mechanism on the duplex shaft drilling rig.

Background technique

With the rapid development of the national economy, the demand for metal materials in various industries across the country is increasing day by day. At the same time, as a large number of metal mine engineering volumes are transferred from open-pit to underground mining, the engineering volume of metal mine shaft construction is also growing rapidly. Although the engineering volume of metal mine shaft construction is increasing, the rock drilling equipment used for metal mine shaft construction has not been updated in time with the increase in shaft construction engineering volume, and its equipment technology is still relatively backward.

At present, domestic metal mine shaft rock drilling construction mostly adopts pneumatic rock drill as the shaft drilling rig of drilling machinery. Compared with coal mines, the biggest difficulty in vertical shaft rock drilling in metal mines is the high hardness of rocks, resulting in low drilling efficiency with traditional pneumatic rock drills, and there are also disadvantages such as high labor intensity and harsh working environment. The prior art discloses a utility model patent with the patent number "200820134685.9" and the invention title "Hydraulic Shaft Drilling Rig". Gas system and electrical system; Among them, the drill frame includes a column, a swing frame movable on the column, one end connected to the swing frame and the other end connected to the boom of the rock drilling mechanism and a support arm installed on the swing frame at one end; the rock drilling mechanism It includes the slide frame, the compensation frame set on the slide frame and the hydraulic rock drill; the hydraulic and water-gas system includes an auxiliary hydraulic system, a rock drilling hydraulic system and a water pump; when working, the support arm is stretched out and supports the wellbore wall so that the drill frame Stable in the well, the rock drilling mechanism moves to the drilling position with the movable arm, and is driven by the power of the hydraulic, water-gas system and electrical system to drill rock, and at the same time, the water pump flushes the cuttings at the bottom of the hole. The utility model helps to improve the working environment of the workers, increase the accuracy and productivity of rock drilling, and reduce the work intensity of the workers. However, the hydraulic shaft drilling rig is a single drilling rig, which inevitably has the disadvantage of small drilling radius. If two shaft drilling rigs are connected as a whole, extremely high requirements must be placed on the connection mechanism between the two shaft drilling rigs. The connection method of the prior art cannot guarantee the rigid connection of the downhole drilling rig and the stability and reliability of the duplex shaft drilling rig during work, and at the same time, it cannot be disassembled more conveniently after the drilling work is completed.

Contents of the invention

The purpose of the present invention is to provide a connection mechanism of a double shaft drilling rig, which can complete the rigid connection of the drill frame of the double shaft drilling rig underground, and ensure that the drilling rig is stable and reliable during the working process, and can be disassembled more conveniently after the work is completed. Open connection, easy to order hoisting away from the underground.

In order to achieve the above object, the technical solution adopted in the invention is: a connecting mechanism of a double shaft drilling rig, which includes a hollow connecting arm and a connecting seat, a lifting cylinder, a clamping cylinder and a fork. One end of the connecting arm is installed on the top disk connecting seat of the drilling rig through a pin shaft, and the other end is fixedly connected with the connecting seat. The fixed end of the clamping oil cylinder is installed in the connecting arm with a pin, and the fork is installed on the extended end of the clamping oil cylinder and placed in the connecting seat movably. When the clamping oil cylinder is extended, the fork is connected Slide forward in the seat. The protruding end of the lifting oil cylinder is installed on the connecting arm through the pin shaft, and the other end is installed on the top plate connecting seat through the pin shaft, and the installation position of the lifting oil cylinder on the top plate connecting seat is higher than that of the connecting arm. Location. When the lifting cylinder stretches, it drives the connecting mechanism to rotate at a certain angle around the connection between the connecting arm and the top plate connecting seat, thereby realizing the purpose of adjusting the height of the fork.

The connecting arm and the connecting seat are connected and fixed by bolts.

The beneficial effect of the present invention is that: through the connection mechanism, the double shaft drilling rig has been successfully used in the construction of large shaft diameter shafts, the connection of the two drilling frames is stable and reliable, and the operation is simple at the same time, and it can be disassembled more conveniently after the work is completed connect. It not only reduces the labor intensity of workers, but also improves work efficiency, which is of great significance in construction applications.

Description of drawings

Fig. 1 is a structural schematic diagram of the connection mechanism of the double shaft drilling rig according to the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the connection mechanism of the double shaft drilling rig of the present invention includes a hollow connection arm 5 and a connection seat 6 , a lifting cylinder 1 , a clamping cylinder 3 and a fork 4 . One end of the connecting arm 5 is installed on the top plate connection seat 8 of the drilling rig through a pin shaft, and the other end thereof is connected and fixed to the connection seat 6 by bolts. The fixed end of the clamping oil cylinder 3 is installed in the connecting arm 5 with a pin shaft, and the fork 4 is installed on the extended end of the clamping oil cylinder 3 and is movable in the connecting seat 6. When the clamping oil cylinder 3 stretches, it drives The fork 4 is close to or far away from the connection seat 6 . The extended end of the lifting cylinder 1 is installed on the connecting arm 5 through a pin shaft, and the other end is installed on the top plate connecting seat 8 through a pin shaft, and the installation position of the lifting oil cylinder 1 on the top plate connecting seat 8 is higher than that of the top plate connecting seat 8. Describe the installation position of the connecting arm 5. When the lifting cylinder 1 stretches, it drives the connecting mechanism to rotate at a certain angle around the connection between the connecting arm 5 and the top plate connecting seat 8, thereby realizing the purpose of adjusting the height of the fork 4.

After the two drilling frames of the double shaft drilling rig go down the well respectively, the two drilling frames are first adjusted to a suitable position through the vehicle stabilizing device. Then start the auxiliary hydraulic system to connect the two drilling frames. The connecting mechanism is installed on the top plate connection seat 8 of a drilling frame of the double shaft drilling rig. The lifting cylinder 1 is used to control the lifting of the connecting mechanism to a suitable height, and then control the clamping. The oil cylinder 3 stretches out, thereby driving the fork 4 to move forward until the pin shaft 7 of the adjacent drill frame is clamped. At this time, a rigid connection is established between the two drilling frames of the duplex shaft drilling rig.

When the drilling work is finished, in order to facilitate lifting from the downhole, the duplex shaft drilling rig needs to disassemble the rigid connection between the two drilling frames. At this time, the auxiliary hydraulic system is started, the extended end of the clamping cylinder 3 is retracted, the fork 4 leaves the pin shaft 7 of the adjacent drilling frame, and then the auxiliary hydraulic system supplies oil to the rodless chamber of the lifting cylinder 1, and the piston rod is extended. The connecting mechanism rotates downward to leave the drill frame, and the two drill frames are separated successfully.

The present invention is not limited to the above-mentioned embodiments, and for those skilled in the art, any obvious improvements or changes made to the above-mentioned embodiments of the present invention will not go beyond the embodiments of the present invention shown by way of example only and Scope of protection of the appended claims.

Claims (2)

1. A connection mechanism for a double shaft drilling rig, characterized in that: the connection mechanism includes a hollow connection arm (5) and a connection seat (6) of the connection mechanism, a lifting cylinder (1), a clamping cylinder (3 ) and fork (4); one end of the connecting arm (5) is installed on the top plate connecting seat (8) of the drilling rig through a pin shaft, and the other end is fixedly connected with the connecting seat (6) of the connecting mechanism; the clip The fixed end of the clamping oil cylinder (3) is installed in the connecting arm (5) with a pin; the fork (4) is installed on the extended end of the clamping oil cylinder (3) and is movably placed on the connecting seat (6) of the connecting mechanism. ); the protruding end of the lifting cylinder (1) is installed on the connecting arm (5) through the pin shaft, and the other end is mounted on the top plate connecting seat (8) through the pin shaft, and the lifting cylinder (1) is on the top The installation position on the disc connection seat (8) is higher than the installation position of the connecting arm (5) on the top disc connection seat (8). 2. The connection mechanism of the duplex shaft drilling rig according to claim 1, characterized in that: the connection arm (5) is connected to the connection seat (6) of the connection mechanism by bolts.

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