CN212867385U

CN212867385U - Top drive drilling machine power head with dustproof mud guard cover

Info

Publication number: CN212867385U
Application number: CN202021782635.9U
Authority: CN
Inventors: 温岫; 谭颖; 李永; 李刚; 张晓�; 温光俊
Original assignee: CCCC FHDI Engineering Co Ltd
Current assignee: CCCC FHDI Engineering Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-02
Anticipated expiration: 2030-08-24

Abstract

The utility model provides a rig unit head is driven on top of dustproof fender mud cover in area, includes mud pipe, tap, driving shaft, upper and lower driving shaft bearing gland, box, drive gear, power input shaft gear and drilling rod, characterized by still includes dustproof fender mud cover, dustproof fender mud cover set up between tap and last driving shaft bearing gland, dustproof fender mud cover is hollow cylindricality, the up end is equipped with the connecting hole that link up to the end, in the tap lower extreme inserts the connecting hole, with connecting hole threaded connection, dustproof fender mud cover lower extreme connecting hole position is equipped with the tubulose bulge, the bulge inserts driving shaft upper port, with driving shaft upper port threaded connection. The dustproof mud guard is additionally arranged between the faucet and the driving shaft, so that the problem that a sealing ring on a main shaft of the power head of the top drive drilling machine is easily damaged by dust and occasionally leaked mud can be avoided, the service cycle of the power head is prolonged, the loss cost is reduced, the working efficiency of drilling operation is improved, and the dustproof mud guard has popularization and application values.

Description

Top drive drilling machine power head with dustproof mud guard cover

Technical Field

The utility model relates to a rig unit head technical field, especially a take top drive rig unit head of dustproof fender mud cover.

Background

As shown in figure 1, the top drive drilling machine power head structure is common in the geological drilling industry at present, and comprises a mud pipe (1), a water faucet (2), a driving shaft (3), upper and lower driving shaft bearing glands (4), a box body (5), a transmission gear (6), a power input shaft gear (7) and a drill rod (8), wherein the upper end of the water faucet (2) is connected with the mud pipe (1), the lower end of the water faucet (2) is in threaded connection with the upper end of the driving shaft (3), and the upper and lower driving shaft bearing glands (4) are in bolted connection with the box body (5) and are used for fixing a tapered roller bearing on the driving shaft (3) penetrating through the box body (5).

The working principle is as follows: the transmission gear (6) transmits power from the input shaft gear (7) to the driving shaft (3), the driving shaft (3) drives the drill rod (8) to rotate, when the whole power head moves downwards, drilling is formed, and otherwise, drilling taking is formed; the water tap (2) is used for delivering slurry to the bottom end of the drill rod (8) through the hollow driving shaft (3) so as to ensure that the drill rod and rock or hard soil are sufficiently lubricated during drilling. When the drilling machine is in a working state, slurry is conveyed to the faucet through the slurry pipe, the faucet can swing ceaselessly, the connecting position of the slurry pipe and the faucet is likely to be loosened, if the connecting position is loosened, and an operator does not find the connecting position in time, slurry can leak from the pipe orifice of the slurry pipe and flows to the upper end of the main shaft along the outer wall of the faucet, an upper driving shaft bearing gland is arranged at the upper end of the main shaft, a sealing ring (used for keeping the tightness in the box body and preventing stone soil or slurry from flowing into the box body during operation to influence the operation of a power device in the box body) is arranged in the upper driving shaft bearing gland, and if the slurry leaks to the sealing ring, the sealing ring is easily damaged. In addition, the drilling site environment is complicated, the amount of earth, stone, sand and ash is large, and the exposed sealing ring is easy to deposit ash and damage.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, and provide a sealing washer not fragile, extension drill bit duty cycle improves the top of taking dustproof fender mud cover of probing work efficiency and drives the rig unit head.

The technical scheme of the utility model is that: the utility model provides a rig unit head is driven on top of dustproof fender mud cover in area, includes mud pipe, tap, driving shaft, upper and lower driving shaft bearing gland, box, drive gear, power input shaft gear and drilling rod, characterized by still includes dustproof fender mud cover, dustproof fender mud cover set up between tap and last driving shaft bearing gland, dustproof fender mud cover is hollow cylindricality, the up end is equipped with the connecting hole that link up to the end, in the tap lower extreme inserts the connecting hole, with connecting hole threaded connection, dustproof fender mud cover lower extreme connecting hole position is equipped with the tubulose bulge, the bulge inserts driving shaft upper port, with driving shaft upper port threaded connection.

The further scheme is as follows: dustproof fender mud cover lower extreme step face indent that makes progress forms the round around the annular groove of lower extreme tubular bulge, last driving shaft bearing gland upper end also be equipped with round and annular groove to the annular boss that corresponds, when dustproof fender mud cover is connected with the driving shaft, the annular groove can be detained on the annular boss, leakproofness when increasing dustproof fender mud cover and driving shaft and connecting.

The further scheme is as follows: when the dustproof mud guard is disassembled and assembled, the inserting rod can be conveniently inserted into the screwing hole to rotate the inserting rod, and the dustproof mud guard can rotate, and the outer wall of the dustproof mud guard is provided with 1-6 screwing holes arranged around the outer circle.

The further scheme is as follows: in order to guarantee that the stress is even when the dustproof mud guard rod is rotated, the screwing holes in the outer wall of the dustproof mud guard cover are arranged in a pairwise opposite mode, the distance between the screwing holes is the same, and the number of the screwing holes can be set to be a plurality according to the rule according to the size of the dustproof mud guard cover.

Compared with the prior art, the utility model, add between tap and driving shaft and establish dustproof fender mud cover, can avoid the top to drive the problem that the sealing washer above the rig unit head main shaft is damaged by dust and the mud of leaking occasionally easily, increase the life cycle of unit head, reduced the loss cost, improve the work efficiency of probing operation, have popularization and application and worth.

Drawings

FIG. 1 is a schematic diagram of a power head of a top drive drilling machine in the prior art;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a dustproof mud guard according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a partial enlarged view of the position B of the embodiment of the present invention.

Detailed Description

The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 2-5, a top drive drilling machine power head with a dustproof mud guard comprises a mud pipe 1, a water faucet 2, a driving shaft 3, an upper driving shaft bearing gland 4, a lower driving shaft bearing gland 4, a box body 5, a transmission gear 6, a power input shaft gear 7, a drill rod 8 and a dustproof mud guard 9, wherein the dustproof mud guard 9 is arranged between the water faucet 2 and the upper driving shaft bearing gland 4, the dustproof mud guard 9 is of a hollow cylindrical shape, the upper end face of the dustproof mud guard 9 is provided with a connecting hole 91 penetrating through to the bottom, the lower end of the water faucet 2 is inserted into the connecting hole 91 and is in threaded connection with the connecting hole 91, a tubular protruding part 92 is arranged at the position of the connecting hole at the lower end of the dustproof mud guard 9, and the tubular protruding part 92 is inserted into the upper port.

Dustproof fender mud cover 9 lower extreme step face indent upwards, form the annular groove 93 that the round centers on the tubular bulge of lower extreme, last driving shaft bearing gland 4 upper end also be equipped with the round and annular groove 93 to the annular boss 41 that corresponds, when dustproof fender mud cover 9 is connected with driving shaft 3, annular groove 93 can be detained on annular boss 41, leakproofness when increasing dustproof fender mud cover and driving shaft and connecting.

Dustproof fender mud cover 9 outer wall on be equipped with and screw up hole 94 around a plurality of that the excircle set up, when the dustproof fender mud cover 9 of dismouting of being convenient for, use the inserted bar to insert and screw up hole 94 swing inserted bar and can rotate dustproof fender mud cover 9.

In order to ensure that the stress is uniform when the dustproof mud guard cover 9 is rotated, the screwing holes 94 on the outer wall of the dustproof mud guard cover 9 are arranged in pairs and oppositely, the spacing distance of the screwing holes 94 is the same, and the number of the screwing holes 94 is arranged according to the rule according to the size of the dustproof mud guard cover.

Claims

1. A top drive drilling machine power head with a dustproof mud guard cover comprises a mud pipe (1), a water faucet (2), a driving shaft (3), upper and lower driving shaft bearing glands (4), a box body (5), a transmission gear (6), a power input shaft gear (7) and a drill rod (8), it is characterized by also comprising a dustproof mud guard (9), wherein the dustproof mud guard (9) is arranged between the water tap (2) and the upper driving shaft bearing gland (4), the dustproof mud guard (9) is hollow column-shaped, the upper end surface is provided with a connecting hole (91) which is communicated with the bottom, the lower end of the water tap (2) is inserted into the connecting hole (91), and the lower end of the dustproof mud guard (9) is provided with a tubular projecting part (92) at the connecting hole position, and the tubular projecting part (92) is inserted into the upper port of the driving shaft (3) and is in threaded connection with the upper port of the driving shaft (3).

2. The power head of the top drive drilling machine with the dustproof mud guard according to claim 1, wherein the step surface at the lower end of the dustproof mud guard (9) is recessed upwards to form a ring-shaped groove (93) surrounding the tubular protruding part at the lower end, the upper end of the bearing gland (4) of the upper driving shaft is also provided with a ring-shaped boss (41) corresponding to the ring-shaped groove (93), and when the dustproof mud guard (9) is connected with the driving shaft (3), the ring-shaped groove (93) is buckled on the ring-shaped boss (41).

3. The top drive drilling machine power head with the dustproof mud guard as claimed in claim 1 or 2, wherein the outer wall of the dustproof mud guard (9) is provided with a plurality of screwing holes (94) arranged around the outer circle.

4. The top drive drilling machine power head with the dustproof mud guard as claimed in claim 3, characterized in that the tightening holes (94) on the outer wall of the dustproof mud guard (9) are arranged in pairs and opposite to each other, and the distance between the tightening holes (94) is the same.