CN201826790U

CN201826790U - Core sampler

Info

Publication number: CN201826790U
Application number: CN2010205860497U
Authority: CN
Inventors: 张杨; 侯卓识; 王丽新; 周宇鹏; 赵英楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2011-05-11
Anticipated expiration: 2020-10-29

Abstract

The utility model relates to a core sampler and belongs to equipment for drilling and sampling rock cores. The core sampler comprises a base, a support, a hollow spindle, a core bit and a lifting drill floor, wherein a rack is provided with a motor and a fixing plate; a box body of the rack is internally provided with the hollow spindle that is axially provided with the core bit; passing through the hollow spindle, a pressing protector coaxially concentric with the core bit is installed on the fixing plate; a core clamping and feeding device is installed on the lifting drill floor; the pressing protector is formed in a way that a solid cylinder is sheathed with a hollow tubular column that is axially concentric with the cylinder and can slide; the section of the solid cylinder inside the hollow tubular column is sequentially and axially provided with a pressure spring and a circular rubber sheet body; and the circular rubber sheet body and the edge of the hollow tubular column are fixed. The core sampler improves the shock resistance of the sections of rock samples and effectively solves the technical problem that the rock samples are broken due to the friction and the vibration of the core bit.

Description

The core sampler

Technical field

The utility model belongs to the equipment that drills through the rock core in the fields such as being applied in rock mechanics engineering, petroleum works, and what be specifically related to is the core sampler.

Background technology

Existingly drill through little core sampling equipment and form by base, anchor clamps, drilling sector, support, anchor clamps are arranged on the base, and form being slidingly connected of fore-and-aft direction with base, drilling sector is arranged on a side of support, and be positioned at the top of anchor clamps, thisly drill through little core sampling equipment, to drill through diameter be 16mm～50mm, when length is the soft rock cores such as mud stone of 3mm～15mm, it is big that coring bit feeds in the process Oscillation Amplitude, cause core cracked easily, can't take out the rock sample of full-size.

Summary of the invention

The purpose of this utility model provides a kind of core sampler, and it is used to solve the easily cracked problem of core that existing core sampling equipment exists when drilling through the soft rock core.

The technical scheme that its technical problem that solves the utility model adopts is: this core sampler comprises base, support, hollow spindle, coring bit, lifting rig floor, motor, fixed head are installed on the frame, hollow spindle is installed in the casing of frame, coring bit axially is installed on the hollow spindle, pass hollow spindle and install on fixed head and the axial concentric protective device of exerting pressure of coring bit, core clamping apparatus for feeding is installed on the lifting rig floor; The protective device of exerting pressure is by one section solid cylinder cover, one axially slidably hollow with one heart tubing string, and the solid cylinder cross section of hollow tubing string inside is axially setting pressure spring, round rubber lamellar body successively, and round rubber lamellar body and hollow tubing string edge are fixed.

There is air duct exert pressure in the such scheme solid cylinder inside of protective device; solid cylinder has three prominent ribs outward; in the prominent rib air duct is arranged also; air duct in the air duct of solid cylinder inside and the prominent rib communicates; air inlet port is on solid cylinder top; venthole is positioned at the at the interface following of three prominent ribs on the solid cylinder, and three prominent ribs become 120 ° of central angles to arrange, and the hollow tubing string and the prominent rib corresponding section of the protective device of exerting pressure are fluted.

Core clamping apparatus for feeding has a slide rail type clamper lifting pedestal in the such scheme, and the rock core fastener of rubber liner is installed on the slide rail type clamper lifting pedestal; Two clamping lamellar bodies of axially installing of close inwall are arranged in the rock core fastener, and an outside side has two protrusion slide rails, and outside opposite side is a stepped tooth; The hand-operated lifting regulating handle is installed on slide rail type clamper lifting pedestal right side.

Stepped tooth cylindricality chain is installed on the slide rail type clamper lifting pedestal in the such scheme, rock core fastener is placed in the slide rail type clamper base and the stepped tooth of rock core fastener is meshed with the stepped tooth of stepped tooth cylindricality chain, and the protrusion slide rail of rock core fastener is placed in the spill slide rail of slide rail type clamper lifting pedestal.

Rock core fastener is circular in the such scheme.

The utlity model has following beneficial effect:

1, the utility model has increased the protective device of exerting pressure in coring bit and hollow spindle; the protective device of exerting pressure in the sampling process does not rotate; along with the increase of the rock sample length of the taking out pressure that protective device is applied on the rock sample of exerting pressure increases synchronously; obviously improved the shock resistance in rock sample cross section, effectively solved and avoided rock sample to be subjected to the friction of coring bit and vibration effect and broken technical problem.

2, the exert pressure column body of protective device of the utility model has air duct; air inlet port is arranged at its top; venthole is positioned at the at the interface following of three prominent ribs on the cylinder; article three, prominent rib becomes 120 ° of central angles to arrange; gases at high pressure enter air duct by the air inlet port on the protective device cylinder of exerting pressure; the venthole at interface blows out under three prominent ribs again; can in time clear up landwaste and cooling coring bit; simultaneously; these three prominent intercostals can form low-pressure area; more the landwaste in the easy to clean coring bit obviously improves the effect that purifies landwaste.

3, the utility model has been cancelled the elevating function of coring bit main shaft in the existing core sampler, the core clamping apparatus for feeding of the special use that can adjust horizontal level is flexibly adopted in design, solved core rocking in sampling process, solved that fixedly the rock sample that causes of shakiness is cracked because of vibrations and core.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is a lateral view of the present utility model;

Fig. 3 is this practical generalized section

Fig. 4 is the stereogram of protective device of exerting pressure in the utility model;

Fig. 5 is the structural representation of core clamping apparatus for feeding in the utility model;

Fig. 6 is the vertical view of core clamping apparatus for feeding in the utility model;

Fig. 7 is the stereogram of rock core fastener in the utility model.

1 motor, 2 electrical machine belt pulleys, 3 main shaft belt wheels, 4 hollow spindles, 5 casings, 6 fixed heads, 7 frames, 8 coring bits 9 protective device 10 bases 11 slide rail type clamper lifting pedestals 12 rock core fasteners 13 lift adjustment handles 14 stepped tooth cylindricality chains 15 driving-belts 16 lifting rig floors 17 lift adjustment handle main shafts 18 compressed gas cylinders of exerting pressure

The specific embodiment

In conjunction with the accompanying drawings the utility model is described further:

In conjunction with Fig. 1, Fig. 2, shown in Figure 3; this core sampler is mainly by motor 1, electrical machine belt pulley 2, main shaft belt wheel 3, hollow spindle 4, casing 5, fixed head 6, frame 7, coring bit 8, the protective device 9 of exerting pressure, base 10, slide rail type clamper lifting pedestal 11, rock core fastener 12, lift adjustment handle 13, stepped tooth cylindricality chain 14, driving-belt 15, and lifting rig floor 16 constitutes.Use screw that motor 1 is fixed on the casing 5; casing 5 is installed in the top of frame 7; again frame 7 bottoms are installed on the base 10; motor 1 connects an electrical machine belt pulley 2; at the casing 5 inner hollow spindles 4 of installing; a main shaft belt wheel 3 is installed on hollow spindle 4 tops; driving-belt 15 is installed on electrical machine belt pulley 2 and main shaft belt wheel 3; use screw that fixed head 6 is fixed on the casing 5; compressed gas cylinder 18 and fixed head 6 upper entrance places are exerted pressure, and the air inlet port of air duct is connected on the solid cylinder of protective device 9; the protective device 9 of exerting pressure passes hollow spindle 4 and uses the rotation of spiral shell button to be fixed on the fixed head 6, coring bit 8 is buckled rotation by spiral shell be fixed on hollow spindle 4 bottoms.As shown in Figure 4, the protective device 9 of exerting pressure is by one section solid cylinder cover one axially slidably hollow with one heart tubing string, axially setting pressure spring, round rubber lamellar body constitute successively in the solid cylinder cross section of hollow tubing string inside, round rubber lamellar body and hollow tubing string edge are fixed, and the function of the protective device 9 of exerting pressure is the cracked abilities of axial compression raising sample opposing of exerting pressure; There is air duct the exert pressure solid cylinder inside of protective device; solid cylinder has three prominent ribs outward; in the prominent rib air duct is arranged also; air duct in the air duct of solid cylinder inside and the prominent rib communicates; air inlet port is on solid cylinder top; venthole is positioned at the at the interface following of three prominent ribs on the solid cylinder, and three prominent ribs become 120 ° of central angles to arrange, and hollow tubing string and prominent rib corresponding section are fluted.Core clamping apparatus for feeding is installed on the lifting rig floor 16, core clamping apparatus for feeding has a slide rail type clamper lifting pedestal 11, slide rail type clamper lifting pedestal 11 promptly is installed on the lifting rig floor 16, the rock core fastener 12 of rubber liner is installed on the slide rail type clamper lifting pedestal 11, and rock core fastener 12 is installed in coring bit 8 belows.

The utility model is cancelled the coring bit elevating function, designed core clamping apparatus for feeding simultaneously, core clamping apparatus for feeding such as Fig. 5, shown in Figure 6, core clamping apparatus for feeding comprises slide rail type clamper lifting pedestal 11 and the rock core fastener 12 that can adjust the position flexibly, consult shown in Figure 6, stepped tooth cylindricality chain 14 is installed on the slide rail type clamper lifting pedestal 11, rock core fastener 12 is placed in the slide rail type clamper base 11 and the stepped tooth of rock core fastener 12 is meshed with the stepped tooth of stepped tooth cylindricality chain 14, the left side of circular rock core fastener 12 is protruded slide rail and is placed in the spill slide rail of slide rail type clamper lifting pedestal 11, the stepped tooth that lift adjustment handle 13 is installed on slide rail type clamper lifting pedestal 11 right sides and the lift adjustment handle main shaft 17 is meshed with stepped tooth cylindricality chain 14, rock core fastener 12 inwalls paste rubber layer and near inwall two axial clamp clip bodies are installed, advance clamping lamellar body clamping core by screw, its effect is significantly to reduce the vibrations that cause because of bit run when drilling through sample, the deficiency that core easily shook when well fixedly core solved sampling.

Fig. 7 provides the stereogram of rock core fastener, and as shown in the figure, rock core fastener 12 is circular, and two clamping lamellar bodies of axially installing of close inwall are arranged in the rock core fastener 12, and outer left side has two protrusion slide rails, and outside right side is a stepped tooth.

When the utility model uses; protective device 9 rotations of will exerting pressure in hollow spindle 4 are fixed on the fixed head 6; coring bit 8 is installed in rotation on the hollow spindle 4 of protective device 9 outsides of exerting pressure; at the fixing lifting rig floor 16 of proper height; the switch of opening compressed gas cylinder 18 is to the venthole air feed on protective device 9 cylinders of exerting pressure; cool off coring bit 8 and cleaning landwaste; core is put into rock core fastener 12; advance the clamping lamellar body to clamp core by adjustment screw; move up and down by lift adjustment handle 13 control rock core fasteners 12 and to drill through sample; rotate in the sampling process at coring bit 8; the protective device 9 of exerting pressure maintains static; the exert pressure compression spring of protective device 9; the round rubber lamellar body applies axial compression above the core sample that drills through; with the growth of being materialsed, the spring of exerting pressure of protective device 9 inside of exerting pressure progressively compresses, and applied pressure progressively increases on sample top; reduce the severe degree of coring bit vibrations effectively, strengthened the shatter-resistant ability of core root.

Claims

1. core sampler, it is characterized in that: this core sampler comprises base (10), frame (7), hollow spindle (4), coring bit (8), lifting rig floor (16), motor (1), fixed head (6) are installed on the frame (7), hollow spindle (4) is installed in the casing (5) of frame (7), hollow spindle (4) is gone up coring bit (8) axially is installed, pass hollow spindle (4) and go up installation and the axial concentric protective device of exerting pressure (9) of coring bit (8) at fixed head (6), core clamping apparatus for feeding is installed on the lifting rig floor (16); The protective device (9) of exerting pressure is by one section solid cylinder cover, one axially slidably hollow with one heart tubing string, and the solid cylinder cross section of hollow tubing string inside is axially setting pressure spring, round rubber lamellar body successively, and round rubber lamellar body and hollow tubing string edge are fixed.

2. core sampler according to claim 1; it is characterized in that: there is air duct the solid cylinder inside of the described protective device of exerting pressure (9); solid cylinder has three prominent ribs outward; in the prominent rib air duct is arranged also; air duct in the air duct of solid cylinder inside and the prominent rib communicates; air inlet port is on solid cylinder top; venthole is positioned at the at the interface following of three prominent ribs on the solid cylinder; article three, prominent rib becomes 120 ° of central angles to arrange, and the hollow tubing string and the prominent rib corresponding section of the protective device of exerting pressure (9) are fluted.

3. core sampler according to claim 2 is characterized in that: described core clamping apparatus for feeding has a slide rail type clamper lifting pedestal (11), and the rock core fastener (12) of rubber liner is installed on the slide rail type clamper lifting pedestal (11); Two clamping lamellar bodies of axially installing of close inwall are arranged in the rock core fastener (12), and an outside side has two protrusion slide rails, and outside opposite side is a stepped tooth; Hand-operated lifting regulating handle (13) is installed on slide rail type clamper lifting pedestal (11) right side.

4. core sampler according to claim 3, it is characterized in that: described slide rail type clamper lifting pedestal (11) is gone up stepped tooth cylindricality chain (14) is installed, rock core fastener (12) is placed in the slide rail type clamper base (11) and the stepped tooth of rock core fastener (12) is meshed with the stepped tooth of stepped tooth cylindricality chain (14), and the protrusion slide rail of rock core fastener (12) is placed in the spill slide rail of slide rail type clamper lifting pedestal (11).

5. core sampler according to claim 4 is characterized in that: described rock core fastener (12) is circular.