CN107179207B - Rotary pressure-maintaining transfer device for marine geological exploration samples and control method - Google Patents
Rotary pressure-maintaining transfer device for marine geological exploration samples and control method Download PDFInfo
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- CN107179207B CN107179207B CN201710342473.3A CN201710342473A CN107179207B CN 107179207 B CN107179207 B CN 107179207B CN 201710342473 A CN201710342473 A CN 201710342473A CN 107179207 B CN107179207 B CN 107179207B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a rotary type pressure-maintaining transfer device for a sample in marine geological exploration and a control method, wherein the pressure-maintaining transfer device comprises a pressure-maintaining sampler, a rotary pressure cylinder and a static pressure cylinder, the right end of the rotary pressure cylinder is connected with the left end of the static pressure cylinder, the rotary pressure cylinder can rotate relative to the static pressure cylinder, and a pressure-maintaining closed chamber is formed by the rotary pressure cylinder and the static pressure cylinder; the static pressure cylinder is externally connected with a pressure supply device for ensuring the pressure in the pressure-maintaining closed cavity to be in a constant state; a first screw nut mechanism and a second screw nut mechanism are horizontally arranged in the pressure maintaining closed cavity, a first screw head and a second screw head can linearly move left and right under the driving of the first screw nut mechanism and the second screw nut mechanism respectively, and the first screw head and the second screw head are provided with threads matched with the pressure maintaining sampler; the rotary pressure cylinder is internally and horizontally provided with a sample pressure storage cylinder, the left end of the rotary pressure cylinder is externally connected with a pressure maintaining sampler, and the right end of the pressure maintaining sampler is communicated with the pressure maintaining sealed cavity.
Description
Technical field
The present invention relates to a kind of rotary Marine Geology prospecting sample pressure-maintaining transfer device and control methods.
Background technology
The presence of gas hydrates provides new hope and possibility with the energy of taking over that the mankind find newly is found to be,
Since its huge potential energy causes the great attention of the numerous scientists in the world and government, and as the heat of research and development
Point.In order to preferably study other properties of hydrate sample, need pressurize sample being transferred in the environment of keeping pressure
Laboratory, this process need whole pressurize.
Existing secondary pressurize sample transfer device volume is larger, operating process is cumbersome, is not suitable for offshore natural gas hydrate
Reconnoitre sampler construction, therefore develop it is a set of docked with existing gas hydrates gastight sampling utensil it is small, easy to operate
Rotary Marine Geology prospecting sample pressure-maintaining transfer device be a technical problem to be solved urgently.
Invention content
The goal of the invention of the present invention is to provide a kind of rotary Marine Geology prospecting sample pressure-maintaining transfer device and control
Method, it is easy to operate, it can directly be docked with existing pressure keeping sampler.
Based on same inventive concept, there are two independent technical solutions for present invention tool：
1, a kind of rotary Marine Geology reconnoitres sample pressure-maintaining transfer device, including pressure keeping sampler, which is characterized in that also
Including：
Rotational pressure cylinder, static pressure cylinder, the right end of rotational pressure cylinder connect the left end of static pressure cylinder, and rotational pressure cylinder can be opposite
Static pressure cylinder rotates, and rotational pressure cylinder forms pressurize airtight chamber with static pressure cylinder；Static pressure cylinder is circumscribed with pressure device for supplying,
For ensureing that pressurize closed chamber room pressure is in steady state；
The first leadscrew-nut mechanism, the second leadscrew-nut mechanism, the first leading screw are horizontally disposed in the pressurize airtight chamber
First leading screw left end of nut body connects the first leading screw head, and the second leading screw left end of the second leadscrew-nut mechanism connects the second leading screw
Head, the first leading screw head, the second leading screw head respectively the first leadscrew-nut mechanism, the second leadscrew-nut mechanism drive under can control
Linear motion, the first leading screw head, the second leading screw head are equipped with and the matched screw thread of pressure keeping sampler；
Horizontal in rotational pressure cylinder to be equipped with sample strain storage cylinder, sample strain storage cylinder left end is solid with rotational pressure cylinder
Fixed, sample strain storage cylinder right end is equipped with and the second matched screw thread of leading screw head；The external gastight sampling of rotational pressure cylinder left end
Device communicates in the right end of pressure keeping sampler and pressurize airtight chamber.
Further, bearing outer barrel is equipped on the outside of rotational pressure cylinder, rotational pressure cylinder is set on bearing, rotational pressure cylinder
It can be rotated relative to bearing outer barrel.
Further, rotational pressure cylinder is driven by worm gear mechanism and is rotated, and the outside of rotational pressure cylinder left part is equipped with
Worm gear.
Further, the first drive shaft, the second drive shaft are horizontally disposed in pressurize airtight chamber, the first drive shaft is for driving
Dynamic first leadscrew-nut mechanism, for the second drive shaft for driving the second leadscrew-nut mechanism, the first leadscrew-nut mechanism is located at the
The left side of one drive shaft, the second leadscrew-nut mechanism are located at the left side of the second drive shaft.
Further, the left end of rotational pressure cylinder is equipped with left end cap, and left end cap is equipped with the first left blind flange, the second left method
Orchid lid, pressure keeping sampler are threadedly coupled with the second left blind flange, and sample strain storage cylinder left end and the first left blind flange screw thread connect
It connects；The right end of static pressure cylinder is equipped with right end cap, and right end cap is equipped with the first right blind flange, the second right blind flange, and the first drive shaft is right
Across the first right blind flange setting, the second drive shaft right end passes through the second right blind flange setting at end；First left blind flange, first right side
Blind flange, the second left blind flange, the second right blind flange are symmetrical arranged.
Further, it is equipped with first servo motor, the second servo motor, the power output shaft of first servo motor connects first
The right end of drive shaft, the power output shaft of the second servo motor connect the right end of the second drive shaft；
Further, static pressure cylinder is equipped with the first quick coupling, the second quick coupling, for connecting with pressure device for supplying
It connects.
Further, rotational pressure cylinder right end and static pressure cylinder left end junction rotatory sealing.
2, a kind of control method for being reconnoitred sample pressure-maintaining transfer device using above-mentioned rotary Marine Geology, feature are existed
In：
Step 1：Drive the rotation of rotational pressure cylinder so that pressure keeping sampler is corresponding with the first leading screw head position, starts first
Leadscrew-nut mechanism, the first leading screw head are rotated and are moved to the left until the sealing pipe screw thread of the first leading screw head and pressure keeping sampler is twisted
Tightly；
Step 2：The first leading screw head is set to invert and move right, until the seal pipe of pressure keeping sampler is detached from gastight sampling
Device；
Step 3：Drive the rotation of rotational pressure cylinder so that pressure keeping sampler is corresponding with the second leading screw head position, starts second
Leadscrew-nut mechanism, the second leading screw head rotate and are moved to the left the bushing pipe pipe shoe head spiral shell until the second leading screw head and pressure keeping sampler
Line is tightened；
Step 4：The second leading screw head is set to invert and move right, until the bushing pipe of pressure keeping sampler is detached from pressure keeping sampler；
Step 5：Drive the rotation of rotational pressure cylinder so that sample strain storage cylinder is corresponding with the second leading screw head position, starts
Second leadscrew-nut mechanism, the second leading screw head are rotated and are moved to the left until the bushing pipe of pressure keeping sampler is completely into sample strain
In storage cylinder, and the screw thread of the second leading screw head and sample strain storage cylinder right end is tightened.
The device have the advantages that：
Rotational pressure cylinder of the present invention forms pressurize airtight chamber with static pressure cylinder, and pressurize closed chamber room pressure is made to be in perseverance
Determine state；In pressurize airtight chamber, the first leading screw is respectively driven by the first leadscrew-nut mechanism, the second leadscrew-nut mechanism
Head, the second leading screw head side-to-side movement, the seal pipe of pressure keeping sampler is removed by the first leading screw head, is removed by the second leading screw head
The bushing pipe of pressure keeping sampler makes the bushing pipe of pressure keeping sampler completely into sample strain storage cylinder eventually by the second leading screw head
It is interior, and the screw thread of the second leading screw head and sample strain storage cylinder right end is tightened, and secondary pressurize sample transfer is finally completed.This hair
It is bright simple in structure, it is easy to operate, it can directly be docked with existing pressure keeping sampler.
Bearing outer barrel is equipped on the outside of rotational pressure cylinder of the present invention, rotational pressure cylinder is set on bearing, and rotational pressure cylinder can
It is rotated relative to bearing outer barrel；Rotational pressure cylinder is driven by worm gear mechanism to be rotated, and the outside of rotational pressure cylinder left part is equipped with
Worm gear further ensures the reliable operating of rotational pressure cylinder, ensures operational effect.
The first drive shaft, the second drive shaft are horizontally disposed in pressurize airtight chamber of the present invention, the first drive shaft is for driving
First leadscrew-nut mechanism, the second drive shaft is for driving the second leadscrew-nut mechanism；Equipped with first servo motor, the second servo
Motor, the power output shaft of first servo motor connect the right end of the first drive shaft, and the power output shaft of the second servo motor connects
The right end of two drive shafts.First servo motor of the present invention, the second servo motor pass through the first drive shaft respectively, the second drive shaft is driven
Dynamic first leadscrew-nut mechanism, the second leadscrew-nut mechanism, it is simple in structure, it is easy to operate, it is reliable for operation.
The left end of rotational pressure cylinder of the present invention is equipped with left end cap, and left end cap is equipped with the first left blind flange, the second left flange
Lid, pressure keeping sampler are threadedly coupled with the second left blind flange, and sample strain storage cylinder left end is threadedly coupled with the first left blind flange；
The right end of static pressure cylinder is equipped with right end cap, and right end cap is equipped with the first right blind flange, the second right blind flange, and the first drive shaft right end is worn
The first right blind flange setting is crossed, the second drive shaft right end passes through the second right blind flange setting；First left blind flange, the first right flange
Lid, the second left blind flange, the second right blind flange are symmetrical arranged.The present invention ensure that pressurize takes by the structure design of left end cap
Sample device, sample strain storage cylinder are reliably connected with rotational pressure cylinder, by the structure design of right end cap, realize the first driving
Axis, the second drive shaft are in the indoor reasonable Arrangement of pressurize closed chamber.
Static pressure cylinder of the present invention is equipped with the first quick coupling, the second quick coupling, more convenient and pressure device for supplying
Connection provides constant pressure identical with pressure keeping sampler pressure by pressure device for supplying to pressurize airtight chamber.The present invention
Rotational pressure cylinder right end and static pressure cylinder left end junction rotatory sealing, ensure the guarantor being made of rotational pressure cylinder and static pressure cylinder
Airtight chamber is pressed to be in pressure steady state always.
Description of the drawings
Fig. 1 is the overall structure diagram of rotary Marine Geology prospecting sample pressure-maintaining transfer device of the invention；
Fig. 2 is the appearance diagram of pressurize airtight chamber of the present invention part；
Fig. 3 is the structural schematic diagram of pressurize airtight chamber of the present invention part；
Fig. 4 is existing pressure keeping sampler structural schematic diagram；
Fig. 5 is static pressure barrel structure schematic diagram of the present invention；
Fig. 6 is the left end cap structural schematic diagram of rotational pressure cylinder of the present invention；
Fig. 7 is the first leading screw header structure schematic diagram of the invention；
Fig. 8 is the second leading screw header structure schematic diagram of the invention.
Reference sign：
1- first servo motors；The second servo motors of 2-, 3- pressure device for supplying；The first left blind flanges of 4-；5- left end caps；
6- worm gears；7- rotational pressure cylinders；8- bearing caps；9- bearing outer barrels；
10- ring flanges；11- static pressure cylinders；12- right end caps；The first right blind flanges of 13-；The second right blind flanges of 14-；15-
Two left blind flanges；The first drive shafts of 16-；The first feed screw nuts of 17-；The first leading screws of 18-；The second kicker magnets of 19-；20- the last the first
Magnet；21- the first leading screw heads；22- rotatory sealings；23- thrust bearings；24- bearing outer separators；25- cylinder roller bearings I；26-
Sample strain storage cylinder；27- bolts；28- pressure keeping samplers；29- worm screws；30- bearing inner spacing collars；31- cylinder roller bearings II；
32- the second leading screw heads；The second leading screws of 33-；The second feed screw nuts of 34-；35- bolts；The second drive shafts of 36-；37- pressure keeping samplers
Connector；38- sampler pressurize cylinders；39- probe tubes；40- sample bushing pipes；41- samples；42- seal pipes；43- pipe shoe heads；44-
One quick coupling；The second quick couplings of 45-.
Specific implementation mode
As shown in Figure 2 and Figure 3, the right end of rotational pressure cylinder 7 connects the left end of static pressure cylinder 11, and rotational pressure cylinder 7 can be relatively quiet
Pressure measuring cylinder 11 rotates, 7 right end of rotational pressure cylinder and the 11 left end junction rotatory sealing 22 of static pressure cylinder, rotational pressure cylinder 7 with it is quiet
Pressure measuring cylinder 11 forms pressurize airtight chamber.As shown in Figure 1, static pressure cylinder is circumscribed with pressure device for supplying 3, for ensureing that pressurize is close
Closed chamber room pressure is in steady state.As shown in figure 3, being horizontally disposed with the first feed screw nut machine in described pressurize airtight chamber
Structure, the second leadscrew-nut mechanism, the first leadscrew-nut mechanism are made of the first leading screw 18 and the first feed screw nut 17, the second leading screw
Nut body is made of the second leading screw 33 and the second feed screw nut 34, and 18 left end of the first leading screw connects first through the first kicker magnet 20
Disputer 21,33 left end of the second leading screw connect the second leading screw head 32 through the second kicker magnet 19, and the first leading screw head 21, the second leading screw head 32 divide
Not the first leadscrew-nut mechanism, the second leadscrew-nut mechanism drive under can control linear motion, the first leading screw head 21, second
Leading screw head 32 is equipped with and the matched screw thread of pressure keeping sampler.As shown in Figure 7, Figure 8, the first leading screw head 21, the second leading screw head
32 are equipped with and 28 matched screw thread of pressure keeping sampler.
As shown in figure 3, horizontal in rotational pressure cylinder 7 be equipped with sample strain storage cylinder 26,26 left end of sample strain storage cylinder
It is fixed with rotational pressure cylinder 7,26 right end of sample strain storage cylinder is equipped with and 32 matched screw thread of the second leading screw head；Rotational pressure
The cylinder external pressure keeping sampler 28 of 7 left ends, communicates in the right end of pressure keeping sampler 28 and pressurize airtight chamber.Outside rotational pressure cylinder 7
Side is equipped with bearing outer barrel 9, and bearing outer barrel both ends are respectively equipped with bearing cap 8 and ring flange 10, and rotational pressure cylinder 7 is set to bearing
On, specifically it is correspondingly provided with thrust bearing 23, bearing outer separator 24, cylinder roller bearing I 25, bearing inner spacing collar 30, cylindrical roller
Bearing I I 31, rotational pressure cylinder 7 can be rotated relative to bearing outer barrel 9.Rotational pressure cylinder 7 is driven by worm gear mechanism to be rotated, such as
Shown in Fig. 2, Fig. 6, worm gear mechanism is made of worm gear 6 and worm screw 29, and the outside of 7 left part of rotational pressure cylinder is equipped with worm gear 6.
As shown in figure 3, being horizontally disposed with the first drive shaft 16, the second drive shaft 36, the first drive shaft in pressurize airtight chamber
16 for driving the first leadscrew-nut mechanism, and the second drive shaft 36 is for driving the second leadscrew-nut mechanism, the first feed screw nut
Mechanism is located at the left side of the first drive shaft 16, and the second leadscrew-nut mechanism is located at the left side of the second drive shaft 36.
As shown in Fig. 2, Fig. 6, Fig. 3, the left end of rotational pressure cylinder 7 is equipped with left end cap 5, and left end cap 5 is equipped with the first left method
Blue lid 4, the second left blind flange 15, the first left blind flange 4, the second left blind flange 15 are fixed by bolt 27, pressure keeping sampler 28
It is threadedly coupled with the second left blind flange 15,26 left end of sample strain storage cylinder is threadedly coupled with the first left blind flange 4；Such as Fig. 3 institutes
Showing, the right end of static pressure cylinder 11 is equipped with right end cap 12, and right end cap 12 is equipped with the first right blind flange 13, the second right blind flange 14, the
One right blind flange 13, the second right blind flange 14 are fixed by bolt 35, and 16 right end of the first drive shaft passes through the first right blind flange 13
Setting, 36 right end of the second drive shaft are arranged across the second right blind flange 14；First left blind flange 4, the first right blind flange 15, second
Left blind flange 13, the second right blind flange 14 are symmetrical arranged.As shown in Figure 1, Figure 3, first servo motor 1, the second servo electricity are equipped with
Machine 2, the power output shaft of first servo motor 1 connect the right end of the first drive shaft 16, and the power output shaft of the second servo motor 2 connects
The right end of second drive shaft 36；As shown in figure 5, static pressure cylinder 11 is equipped with the first quick coupling 44, the second quick coupling 45, use
It is connect in pressure device for supplying 3.
As shown in figure 4, existing pressure keeping sampler is by pressure keeping sampler connector 37, sampler pressurize cylinder 38, probe tube 39, lining
Pipe 40, seal pipe 42, bushing pipe pipe shoe head 43 form, and are sample 41 in bushing pipe 40, and pressurize sample secondary transferring is sought to bushing pipe
40 take out from pressure keeping sampler, are transferred in sample strain storage cylinder 26.
When work, the pressurize airtight chamber that pressure device for supplying 3 is formed to rotational pressure cylinder 7 and static pressure cylinder 11 provides perseverance
Fixed pressure, the pressure are identical as the pressure in pressure keeping sampler.
Step 1：The worm gear mechanism being made up of worm gear 6, worm screw 29, driving rotational pressure cylinder 7 rotate so that pressurize
Sampler 28 is corresponding with 21 position of the first leading screw head, and first servo motor 1 drives the first leadscrew-nut mechanism so that the first leading screw
First 21 rotate and are moved to the left until 42 screw thread of seal pipe of the first leading screw head 21 and pressure keeping sampler is tightened；
Step 2：First servo motor drives the first leadscrew-nut mechanism, so that the first leading screw head 21 is inverted and moves right,
Until the seal pipe 42 of pressure keeping sampler is detached from pressure keeping sampler；
Step 3：Rotational pressure cylinder 7 is driven to rotate so that pressure keeping sampler 28 is corresponding with 32 position of the second leading screw head, and second
Servo motor 2 drives the second leadscrew-nut mechanism, so that the second leading screw head 32 is rotated and be moved to the left until the second leading screw head 32 with
43 screw thread of bushing pipe pipe shoe head of pressure keeping sampler is tightened；
Step 4：Second servo motor 2 drives the second leadscrew-nut mechanism, so that the second leading screw head 32 is inverted and moves right,
Until the bushing pipe 40 of pressure keeping sampler is detached from pressure keeping sampler；
Step 5：Rotational pressure cylinder 7 is driven to rotate so that sample strain storage cylinder 26 is corresponding with 32 position of the second leading screw head,
Second servo motor drives the second leadscrew-nut mechanism, so that the second leading screw head 32 is rotated and is moved to the left up to pressure keeping sampler
Bushing pipe 40 is completely into sample strain storage cylinder 26, and the screw thread of the second leading screw head 32 and 26 right end of sample strain storage cylinder
It tightens.Rotational pressure cylinder 7 is opened, sample strain storage cylinder 26 is unloaded into taking-up, that is, completes sample pressure-maintaining transfer.
Claims (9)
1. a kind of rotary Marine Geology reconnoitres sample pressure-maintaining transfer device, including pressure keeping sampler, which is characterized in that also wrap
It includes：
Rotational pressure cylinder, static pressure cylinder, the right end of rotational pressure cylinder connect the left end of static pressure cylinder, and rotational pressure cylinder can relative static pressure
Power cylinder rotates, and rotational pressure cylinder forms pressurize airtight chamber with static pressure cylinder；Static pressure cylinder is circumscribed with pressure device for supplying, is used for
Ensure that pressurize closed chamber room pressure is in steady state；
The first leadscrew-nut mechanism, the second leadscrew-nut mechanism, the first feed screw nut are horizontally disposed in the pressurize airtight chamber
First leading screw left end of mechanism connects the first leading screw head, and the second leading screw left end of the second leadscrew-nut mechanism connects the second leading screw head, the
One leading screw head, the second leading screw head respectively the first leadscrew-nut mechanism, the second leadscrew-nut mechanism drive under can left and right straight line
Movement, the first leading screw head, the second leading screw head are equipped with and the matched screw thread of pressure keeping sampler；
Horizontal in rotational pressure cylinder to be equipped with sample strain storage cylinder, sample strain storage cylinder left end is fixed with rotational pressure cylinder, sample
Product pressure reservoir cylinder right end is equipped with and the second matched screw thread of leading screw head；The external pressure keeping sampler of rotational pressure cylinder left end is protected
It presses and is communicated in the right end and pressurize airtight chamber of sampler.
2. rotary Marine Geology according to claim 1 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Rotation pressure
Bearing outer barrel is equipped on the outside of power cylinder, rotational pressure cylinder is set on bearing, and rotational pressure cylinder can be rotated relative to bearing outer barrel.
3. rotary Marine Geology according to claim 2 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Rotation pressure
Power cylinder is driven by worm gear mechanism to be rotated, and the outside of rotational pressure cylinder left part is equipped with worm gear.
4. rotary Marine Geology according to claim 3 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Pressurize is close
Closed chamber indoor horizontal be arranged the first drive shaft, the second drive shaft, the first drive shaft for drive the first leadscrew-nut mechanism, second
Drive shaft is for driving the second leadscrew-nut mechanism, the first leadscrew-nut mechanism to be located at the left side of the first drive shaft, the second leading screw
Nut body is located at the left side of the second drive shaft.
5. rotary Marine Geology according to claim 4 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Rotation pressure
The left end of power cylinder is equipped with left end cap, and left end cap is equipped with the first left blind flange, the second left blind flange, pressure keeping sampler and second left side
Blind flange is threadedly coupled, and sample strain storage cylinder left end is threadedly coupled with the first left blind flange；The right end of static pressure cylinder is equipped with the right side
End cap, right end cap are equipped with the first right blind flange, the second right blind flange, and the first drive shaft right end passes through the first right blind flange setting,
Second drive shaft right end passes through the second right blind flange setting；First left blind flange, the first right blind flange, the second left blind flange,
Two right blind flanges are symmetrical arranged.
6. rotary Marine Geology according to claim 5 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Equipped with
One servo motor, the second servo motor, the power output shaft of first servo motor connect the right end of the first drive shaft, the second servo electricity
The power output shaft of machine connects the right end of the second drive shaft.
7. rotary Marine Geology according to claim 6 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Static pressure
Cylinder is equipped with the first quick coupling, the second quick coupling, for being connect with pressure device for supplying.
8. rotary Marine Geology according to claim 7 reconnoitres sample pressure-maintaining transfer device, it is characterised in that：Rotation pressure
Power cylinder right end and static pressure cylinder left end junction rotatory sealing.
9. a kind of control for reconnoitring sample pressure-maintaining transfer device using rotary Marine Geology described in claim 1 to 8 any one
Method processed, it is characterised in that：
Step 1：Drive the rotation of rotational pressure cylinder so that pressure keeping sampler is corresponding with the first leading screw head position, starts the first leading screw
Nut body, the first leading screw head are rotated and are moved to the left until the sealing pipe screw thread of the first leading screw head and pressure keeping sampler is tightened；
Step 2：The first leading screw head is set to invert and move right, until the seal pipe of pressure keeping sampler is detached from pressure keeping sampler；
Step 3：Drive the rotation of rotational pressure cylinder so that pressure keeping sampler is corresponding with the second leading screw head position, starts the second leading screw
Nut body, the second leading screw head are rotated and are moved to the left until the bushing pipe pipe shoe head thread of the second leading screw head and pressure keeping sampler is twisted
Tightly；
Step 4：The second leading screw head is set to invert and move right, until the bushing pipe of pressure keeping sampler is detached from pressure keeping sampler；
Step 5：Drive the rotation of rotational pressure cylinder so that sample strain storage cylinder is corresponding with the second leading screw head position, starts second
Leadscrew-nut mechanism, the second leading screw head are rotated and are moved to the left until the bushing pipe of pressure keeping sampler is stored completely into sample strain
In cylinder, and the screw thread of the second leading screw head and sample strain storage cylinder right end is tightened.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342473.3A CN107179207B (en) | 2017-05-16 | 2017-05-16 | Rotary pressure-maintaining transfer device for marine geological exploration samples and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342473.3A CN107179207B (en) | 2017-05-16 | 2017-05-16 | Rotary pressure-maintaining transfer device for marine geological exploration samples and control method |
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| CN107179207B true CN107179207B (en) | 2018-07-24 |
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| CN109030779B (en) * | 2018-07-28 | 2020-05-22 | 浙江大学 | Long-stroke pushing and rotating device for natural gas hydrate core tube |
| CN114354245B (en) * | 2021-12-02 | 2024-03-19 | 浙江大学 | Water-covering pollution-free and sediment low-disturbance repeated pressure-maintaining separation transfer device |
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