CN112360334A

CN112360334A - Universal shaft sealing sleeve of geological exploration screw drill

Info

Publication number: CN112360334A
Application number: CN202011043764.0A
Authority: CN
Inventors: 李峰; 隋秀梅; 于丽娜; 魏星; 李洁; 白冰
Original assignee: Changchun Vocational Institute of Technology
Current assignee: Changchun Vocational Institute of Technology
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of geological exploration equipment and discloses a universal shaft sealing sleeve of a geological exploration screw drilling tool, which comprises a shaft body, wherein ball covers are fixedly connected to the left end and the right end of the shaft body, arc covers are clamped inside the ball covers, telescopic supporting rods are hinged to one ends, close to the shaft body, of the arc covers, fixing frame bodies are movably connected to the outer portions of the telescopic supporting rods, and centrifugal blocks are elastically connected to one ends, close to the shaft body, of the arc covers through springs. This geological exploration screw rod drilling tool cardan shaft seal cover adjusts the change of protection position according to axis body operational aspect, reaches the outside effect of scalable sealed protection axis body, avoids grit, the inside accelerated wear of muddy water entering axis body, when the inside wearing and tearing of axis body are violent suddenly, makes inside lubricating oil receive the movable block extrusion and gets into the axis body and rotate the junction, to the automatic lubrication's of being convenient for effect at the probing in-process, avoids pause work to take out the lubrication and expend time reduce efficiency.

Description

Universal shaft sealing sleeve of geological exploration screw drill

Technical Field

The invention relates to the technical field of geological exploration equipment, in particular to a seal sleeve of a universal shaft of a geological exploration screw drill.

Background

Geological exploration is to survey and detect geology through various means and methods, determine a proper bearing layer, determine a foundation type according to the bearing capacity of a foundation of the bearing layer, calculate investigation and research activities of basic parameters, but the conventional universal shaft is usually directly and naked arranged on a screw drilling tool, the universal shaft is directly contacted with soil and gravel in a geological soil layer, the universal shaft is easy to wear when the screw drilling tool works, the sealing performance of a sealing sleeve is poor for the telescopic universal shaft, so that the soil and the gravel are easy to enter the shaft body to accelerate the internal wear of the shaft body, the conventional universal shaft cannot perform lubricating action in the use process, the wear is difficult to find when the shaft body is severely worn, the service life of the universal shaft is shortened, the time for taking out and replacing oil consumption and the time is saved, and the working efficiency is reduced.

In order to solve the problems, the inventor provides a universal shaft sealing sleeve of a geological exploration screw drill, which adjusts the change of a protection position according to the working condition of a shaft body, achieves the effect of protecting the outside of the shaft body in a telescopic sealing manner, avoids sand, gravel and muddy water from entering the inside of the shaft body to accelerate abrasion, enables internal lubricating oil to be extruded by a movable block to enter the rotating connection part of the shaft body when the abrasion inside the shaft body is suddenly severe, achieves the effect of facilitating automatic lubrication in the drilling process, and avoids the time consumption and the efficiency reduction caused by the suspension of work for taking out the lubrication.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the universal shaft sealing sleeve of the geological exploration screw drilling tool, which has the advantages of protecting the outside of the shaft body by a telescopic rotary seal and facilitating automatic lubrication in the drilling process to improve the working efficiency, and solves the problems that the shaft body is directly exposed to the outside to accelerate wear and the lubrication is required to be taken out in the drilling process in a pause mode.

(II) technical scheme

In order to realize the purposes of protecting the outside of the shaft body by the telescopic rotary seal and facilitating automatic lubrication in the drilling process and improving the working efficiency, the invention provides the following technical scheme: a universal shaft sealing sleeve of a geological exploration screw drilling tool comprises a shaft body, wherein ball covers are fixedly connected to the left end and the right end of the shaft body, an arc cover is clamped inside the ball covers, one end, close to the shaft body, of the arc cover is hinged to a telescopic supporting rod, the outer portion of the telescopic supporting rod is movably connected with a fixing frame body, one end, close to the shaft body, of the arc cover is elastically connected with a centrifugal block through a spring I, one end, close to the center of the shaft body, of the centrifugal block is fixedly connected with a contact I, one side, close to the contact I, of the arc cover is fixedly connected with a resistance belt, one end, close to the center of the shaft body, of the arc cover is fixedly connected with a fixing sleeve, the inner portion of the fixing sleeve is movably connected with a movable sleeve, the middle portion of the, the inner part of the movable block is fixedly connected with a magnet I, one end, far away from the shaft body, of the fixed support is provided with an oil inlet, one end, far away from the shaft body, of the fixed support is elastically connected with a centrifugal ball through a spring II, the right end of the fixed support is fixedly connected with a capacitor plate, one end, close to the shaft body, of the fixed support is provided with an oil outlet, and the oil outlet is fixedly connected with a threaded end cover.

Preferably, the axis body is the cardan shaft body, both ends pass through screw nut fixedly connected with spherical cap about the axis body, make the spherical cap can seal the protection axis body.

Preferably, the inside of spherical cover and the outside looks adaptation of arc lid, the inside of spherical cover is seted up slottedly, the tip of arc lid and the inside groove looks adaptation of seting up of spherical cover adjust the rotation of different coaxial lines at the cardan shaft and make the protection axis body closely, prevent the entering of mud liquid and grit.

Preferably, the outside of telescopic support rod and the inside looks adaptation of fixed support body, the inside elastic connection of fixed support body has telescopic support rod, the one end joint that fixed support body is close the axis body is at the surface of axis body, protects the axis body when the cardan shaft is flexible.

Preferably, contact one is connected with resistance area, electric capacity board and electromagnet circuit, contact one is two sets of with the quantity in resistance area, and the electric current direction of even going into in the circuit is opposite, the quantity of electro-magnet is two, the centrifugation piece is made by insulating material, fixed cover and movable sleeve are the hollow circular cylinder casing, the left end fixedly connected with left end ball lid of fixed cover, the right-hand member fixedly connected with right-hand member ball lid of movable sleeve changes the inside electric current of centrifugal piece even going into the circuit through the difference of cardan shaft output and input rotational speed, and the electric current of opposite direction offsets each other this moment, inside the big self-lubricate axis body of rotational speed difference.

Preferably, the fixed bolster has two sets ofly, the inside cavity of fixed bolster, the hydraulic fluid port is led to inside having seted up of movable block, and one of them group's fixed connection is at the middle part of axis body, and another group's fixed connection is at the one end that the axis body is close to the spherical cap, the fixed bolster that the spherical cap is close axis body center one end fixed connection is around axis symmetrical arrangement, also can protect the axis body when making the cardan shaft flexible.

Preferably, the outside of movable block and the inside looks adaptation of fixed bolster, the inside of oil inlet and the outside looks adaptation of centrifugal ball, the electric capacity board is connected with the electro-magnet circuit at both ends about with respectively.

(III) advantageous effects

Compared with the prior art, the invention provides a seal sleeve for a universal shaft of a geological exploration screw drill, which has the following beneficial effects:

1. this geological exploration screw rod drilling tool universal shaft seal cover, both ends difference fixedly connected with spherical cap about through the axis body, the inside swing joint of spherical cap has the arc lid, the left end fixedly connected with fixed cover of arc lid simultaneously, the inside swing joint of fixed cover has the movable sleeve, wrap up the axis body completely, at axis body during operation, adjust the relative position of arc lid and spherical cap and the relative position of fixed cover and movable sleeve according to axis body behavior, thereby reach the outside effect of scalable sealed protection axis body, avoid the grit, muddy water gets into the inside accelerated wear of axis body.

2. This geological exploration screw drilling tool cardan shaft seal cover, there is the centrifugal piece through spring elastic connection through the one end of the close axis body of arc lid, the centrifugal piece is close the one end fixedly connected with contact one at axis body center, change the centrifugal piece through the speed of the rotational speed of axis body and drive the inside resistance of contact one joining resistance area, the output and the input of axis body have the centrifugal piece respectively elastic connection, when the internal wear of axis body is violent suddenly, output and input both ends rotational speed alternate in the twinkling of an eye, insert the inside current value of electric capacity board by offsetting mutually for zero to the electric current that appears, the short-lived end of charging, electric capacity board arouses the electro-magnet to make inside lubricated fluid receive the movable block extrusion and get into the axis body and rotate the junction, thereby reach the effect of being convenient for self-lubrication at the probing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a diagram of the shaft motion of the present invention;

FIG. 3 is a schematic plan view of the telescopic strut of the present invention;

FIG. 4 is an enlarged view of the fixing bracket at the ball cover according to the present invention;

FIG. 5 is a schematic view of the refueling of the fixing bracket at the ball cover of the present invention;

FIG. 6 is an enlarged view of the structure shown at A in FIG. 1 according to the present invention;

fig. 7 is an enlarged view of the structure shown at B in fig. 1 according to the present invention.

In the figure: 1. a shaft body; 2. a ball cover; 3. an arc-shaped cover; 4. a telescopic strut; 5. a fixed frame body; 6. a first spring; 7. a centrifugal block; 8. a first contact; 9. a resistance band; 10. fixing a sleeve; 11. a movable sleeve; 12. fixing a bracket; 13. an electromagnet; 14. a movable block; 15. a first magnet; 16. an oil inlet; 17. a centrifugal ball; 18. a second spring; 19. a capacitive plate; 20. an oil outlet; 21. and (4) a threaded end cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a universal shaft sealing sleeve for a geological exploration screw drilling tool comprises a shaft body 1, wherein ball covers 2 are fixedly connected to the left end and the right end of the shaft body 1, the shaft body 1 is a universal shaft body, the ball covers 2 are fixedly connected to the left end and the right end of the shaft body 1 through threaded nuts, so that the ball covers 2 can seal and protect the shaft body 1, the inner portion of each ball cover 2 is matched with the outer portion of each arc-shaped cover 3, grooves are formed in the inner portions of the ball covers 2, the end portions of the arc-shaped covers 3 are matched with the grooves formed in the inner portions of the ball covers 2, the shaft body 1 is closely protected by the universal shaft through coaxial rotation adjustment, the arc-shaped covers 3 are clamped in the inner portions of the ball covers 2, telescopic struts 4 are hinged to one ends of the arc-shaped covers 3, which are close to the shaft body 1, the outer portions of the telescopic struts 4 are matched with the inner portions of fixing frame bodies 5, the fixing frame, when the universal shaft stretches, the shaft body 1 is protected, a fixed frame body 5 is movably connected to the outer portion of a telescopic support rod 4, one end, close to the shaft body 1, of an arc-shaped cover 3 is elastically connected with a centrifugal block 7 through a spring I6, one end, close to the center of the shaft body 1, of the centrifugal block 7 is fixedly connected with a contact I8, the contact I8 is in circuit connection with a resistance band 9, a capacitance plate 19 and an electromagnet 13, the number of the contact I8 and the number of the resistance band 9 are two, the directions of currents connected into a circuit are opposite, the number of the electromagnets 13 is two, the resistance band centrifugal block 7 is made of an insulating material, a fixed sleeve 10 and a movable sleeve 11 are both hollow cylindrical shells, a left end spherical cover 2 is fixedly connected to the left end of the fixed sleeve 10, a right end spherical cover 2 is fixedly connected to the right end 11 of the movable sleeve, currents connected into the circuit by, inside the automatic lubrication shaft body 1 with large difference of rotating speed, one side of the arc cover 3 close to the contact I8 is fixedly connected with a resistance band 9, one end of the arc cover 3 close to the center of the shaft body 1 is fixedly connected with a fixed sleeve 10, the inside of the fixed sleeve 10 is movably connected with a movable sleeve 11, the middle part of the arc cover 3 is fixedly connected with a fixed support 12, the fixed support 12 has two groups, the fixed support 12 is hollow, an oil guide port is arranged inside a movable block 14, one group of the movable block is fixedly connected with the middle part of the shaft body 1, the other group of the movable block is fixedly connected with one end of the ball cover 2 close to the shaft body 1, the fixed support 12 fixedly connected with one end of the ball cover 2 close to the center of the shaft body 1 is symmetrically arranged around the axis, the shaft body 1 can be protected when the universal shaft is telescopic, the shaft body 1 can, the outside of movable block 14 and the inside looks adaptation of fixed bolster 12, the inside of oil inlet 16 and the outside looks adaptation of centrifugal ball 17, electric capacity board 19 respectively with the electro-magnet 13 circuit connection of controlling both ends, the inside fixedly connected with magnet 15 of movable block 14, the one end that axis body 1 was kept away from to fixed bolster 12 has seted up oil inlet 16, there is centrifugal ball 18 one end of keeping away from axis body 1 of fixed bolster 12 through two 17 elastic connection of spring, the right-hand member fixedly connected with electric capacity board 19 of fixed bolster 12, oil-out 20 has been seted up to the one end that fixed bolster 12 is close to axis body 1, oil-out 20 fixedly connected with end cover 21.

The working process and principle are as follows: before the universal shaft works, the spherical cover 2, the arc-shaped cover 3, the fixed sleeve 10 and the movable sleeve 11 which are used for sealing and protecting the outside of the shaft body 1 are opened, the fixed support 12 is turned over until an oil inlet 16 is positioned right above, at the moment, the movable block 14 movably connected with the inside of the fixed support 12 is pressed downwards under the action of gravity, at the moment, the centrifugal ball 17 is pressed, the centrifugal ball 17 is elastically connected with the inside of the fixed support 12 through a second spring 18, the centrifugal ball 17 is pressed downwards, the second spring 18 is compressed, at the moment, lubricating oil is injected, the lubricating oil enters the inside of the fixed support 12 along the oil inlet 16, the lubricating oil is injected after finishing, the elastic action of the second spring 18 is used for elastically sealing the oil inlet 16 of the fixed support 12 on the centrifugal ball 17 and is covered again with a protection mechanism outside the shaft body 1, when the shaft body 1 starts to work, because the spherical cover 2, the arc-shaped cover, at the moment, external muddy water and sand are difficult to enter the inside of the shaft body 1, when the shaft body 1 is connected with drilling tools and power shafts on different axes, the arc-shaped cover 3 is driven by the telescopic supporting rod 4 and the fixed frame body 5 to rotate inside the spherical cover 2, the shaft body 1 is protected from external damage within the working angle range of the shaft body 1, meanwhile, when the shaft body 1 stretches, the shaft body 1 is protected from entering of the sand stone layer and the muddy water due to the fact that the fixed sleeve 10 and the movable sleeve 11 movably connected inside the fixed sleeve 10 are both in a hollow cylindrical structure, the shaft body 1 is prevented from entering the sand stone layer and the muddy water, therefore, the outside of the shaft body 1 is protected in a telescopic rotating sealing mode, interference of the external environment to the shaft body 1 is reduced, when the shaft body 1 normally works, because the rotating speed difference between the left end and the right end of the shaft body 1 is not large, the rotating speed difference between the left end and, at the moment, the electromagnet 13 is in a power-off state, when the internal abrasion of the shaft body 1 is suddenly intensified, the rotating speed difference of the left end and the right end of the shaft body 1 is suddenly increased, the centrifugal block 7 drives the contact point I8 to change the position of the access resistor die 9 to be different, at the moment, the residual current after the internal currents connected into the capacitor plate 19 are mutually counteracted charges the capacitor plate 19, after the rotating speeds of the output end and the input end of the shaft body 1 are reset to be balanced, the capacitor plate 19 is charged, at the moment, the electromagnet 13 is supplied with power to the magnet I15, the movable block 14 movably connected with the inside of the fixed support 12 is driven by the magnet I15 from the end away from the shaft body 1 under the action of the centrifugal force to move towards one end of the shaft body 1, the oil liquid in the inside of the fixed support 12 is instantly extruded to enter the rotating connection position inside the shaft body 1 from the oil outlet 20 to the threaded end cover 21, the locking fixing support 12 prevents oil leakage, so that the effect of automatic lubrication in the drilling process is achieved, and the working efficiency is improved.

To sum up, this geological exploration screw rod drilling tool universal shaft seal cover, both ends difference fixedly connected with spherical cap 2 about through the axis body 1, the inside swing joint of spherical cap 2 has arc lid 3, the fixed cover 10 of left end fixedly connected with of arc lid 3 simultaneously, the inside swing joint of fixed cover 10 has movable sleeve 11, wrap up axis body 1 completely, at axis body 1 during operation, adjust the relative position of arc lid 3 and spherical cap 2 and the relative position of fixed cover 10 and movable sleeve 11 according to the 1 operational aspect of axis body, thereby reach the outside effect of scalable rotation seal protection axis body 1, avoid the grit, muddy water gets into the inside accelerated wear of axis body 1.

In addition, the universal shaft sealing sleeve of the geological exploration screw drill is elastically connected with a centrifugal block 7 through one end of the arc-shaped cover 3 close to the shaft body 1 through a spring I6, one end of the centrifugal block 7 close to the center of the shaft body 1 is fixedly connected with a contact I8, the centrifugal block 7 is changed by the rotating speed of the shaft body 1 to drive the contact I8 to add the resistance inside the resistance band 9, the output end and the input end of the shaft body 1 are respectively and elastically connected with the centrifugal block 7, when the abrasion in the shaft body 1 is suddenly severe, the rotating speeds at the two ends of the output end and the input end are instantly changed, the current value of the current connected into the capacitor plate 19 is changed from mutual offset to zero to the current, after the short charging is finished, the capacitor plate 19 excites the electromagnet 13 to enable the internal lubricating oil to be extruded by the movable block 14 to enter the rotating connection part of the shaft body 1, therefore, the effect of facilitating automatic lubrication in the drilling process is achieved, time consumption and efficiency reduction caused by taking out the lubrication in a suspended mode are avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prospecting screw rod drilling tool cardan shaft seal cover, includes axis body (1), its characterized in that: the improved electric soldering iron is characterized in that ball covers (2) are fixedly connected to the left end and the right end of the shaft body (1), an arc cover (3) is clamped in the ball covers (2), a telescopic supporting rod (4) is hinged to one end, close to the shaft body (1), of the arc cover (3), a fixing frame body (5) is movably connected to the outer portion of the telescopic supporting rod (4), one end, close to the shaft body (1), of the arc cover (3) is elastically connected with a centrifugal block (7) through a spring I (6), one end, close to the center of the shaft body (1), of the centrifugal block (7) is fixedly connected with a contact I (8), one side, close to the contact I (8), of the arc cover (3) is fixedly connected with a resistance belt (9), one end, close to the center of the shaft body (1), of the arc cover (3) is fixedly connected with a fixing sleeve (10), the inner portion of the fixing sleeve (10) is movably, the improved electric spindle is characterized in that an electromagnet (13) is fixedly connected to the inside of the fixed support (12), a movable block (14) is movably connected to the inside of the fixed support (12), a first magnet (15) is fixedly connected to the inside of the movable block (14), an oil inlet (16) is formed in one end, away from the spindle body (1), of the fixed support (12), a centrifugal ball (18) is elastically connected to one end, away from the spindle body (1), of the fixed support (12) through a second spring (17), a capacitor plate (19) is fixedly connected to the right end of the fixed support (12), an oil outlet (20) is formed in one end, close to the spindle body (1), of the fixed support (12), and a threaded end cover (21) is fixedly connected.

2. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: the shaft body (1) is a universal shaft body, and the left end and the right end of the shaft body (1) are fixedly connected with ball covers (2) through threaded nuts.

3. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: the inner part of the spherical cover (2) is matched with the outer part of the arc-shaped cover (3), a groove is formed in the spherical cover (2), and the end part of the arc-shaped cover (3) is matched with the groove formed in the spherical cover (2).

4. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: the outside of telescopic support pole (4) and the inside looks adaptation of fixed support body (5), the inside elastic connection of fixed support body (5) has telescopic support pole (4), the one end joint that fixed support body (5) are close axis body (1) is at the surface of axis body (1).

5. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: contact (8) and resistance area (9), electric capacity board (19) and electro-magnet (13) circuit connection, the quantity of contact (8) and resistance area (9) is two sets of, and the electric current opposite direction in the circuit even goes into, the quantity of electro-magnet (13) is two, centrifugation piece (7) are made by insulating material, fixed cover (10) and movable sleeve (11) are the cavity cylinder casing, the left end fixedly connected with left end ball lid (2) of fixed cover (10), the right-hand member (11) fixedly connected with right-hand member ball lid (2) of movable sleeve.

6. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: the utility model discloses a ball bearing, including fixed bolster (12), movable block (14), fixed bolster (12) have two sets ofly, the inside cavity of fixed bolster (12), the hydraulic fluid port has been seted up to movable block (14) inside, and one of them a set of fixed connection is in the middle part of axis body (1), and another fixed connection of group is close the one end of axis body (1) in spherical cap (2), fixed bolster (12) that spherical cap (2) are close axis body (1) center one end fixed connection are about axis symmetrical arrangement.

7. The seal sleeve for the universal shaft of the geological exploration screw drill is characterized by comprising the following components in parts by weight: the external portion of the movable block (14) is matched with the internal portion of the fixed support (12), the internal portion of the oil inlet (16) is matched with the external portion of the centrifugal ball (17), the capacitor plate (19) is respectively in circuit connection with the electromagnets (13) at the left end and the right end, and the threaded end cover (21) is in threaded connection with the lubricating portion of the shaft body (1).