CN109736786A - A kind of continuous wave positive pulse generator of linear motor driving - Google Patents
A kind of continuous wave positive pulse generator of linear motor driving Download PDFInfo
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- CN109736786A CN109736786A CN201811533927.6A CN201811533927A CN109736786A CN 109736786 A CN109736786 A CN 109736786A CN 201811533927 A CN201811533927 A CN 201811533927A CN 109736786 A CN109736786 A CN 109736786A
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- fixedly mounted
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- collection box
- linear motor
- drill collar
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Abstract
A kind of continuous wave positive pulse generator of linear motor driving, including drill collar, throttle valve seat is fixedly mounted in drill collar two sides inner wall respectively, linear motor is fixedly mounted in drill collar rear end inner wall, linear motor is located at below throttle valve seat, vertical support column is fixedly mounted in linear motor top, support top end that rotary table is fixedly mounted, rotary table is located at below throttle valve seat and can be engaged with throttle valve seat, collection box is fixedly mounted in drill collar two sides inner wall respectively, collection box is located above throttle valve seat, drill collar two sides inner wall opens up vertical placing groove respectively, placing groove is located above collection box.Pass through the staggeredly work of two waterproof machines, respectively enter the large granular impurity on filter screen in collection box, filter screen in filtering screen frame is cleared up, make to flow more smoothly, and two filtering connections of the screen frame by connecting rod, two filtering screen frames can be made to extend movement routine in banking motion, while also avoiding two filtering screen frame separation.
Description
Technical field
The invention belongs to drilling technique field, specifically a kind of continuous wave positive pulse of linear motor driving occurs
Device.
Background technique
More large granular impurity is had in mud, large granular impurity is easy to after entering in drill collar to the component in drill collar
It damages, thus more inconvenient in use.
Summary of the invention
The present invention provides a kind of continuous wave positive pulse generator of linear motor driving, to solve in the prior art lack
It falls into.
The present invention is achieved by the following technical programs:
Section is fixedly mounted in a kind of continuous wave positive pulse generator of linear motor driving, including drill collar, drill collar two sides inner wall respectively
Valve seat is flowed, linear motor is fixedly mounted in drill collar rear end inner wall, and linear motor is located at below throttle valve seat, and linear motor top is fixed
Vertical support column is installed, rotary table is fixedly mounted in support top end, and rotary table is located at below throttle valve seat and can be with throttle valve seated connection
Collection box is fixedly mounted in touching cooperation, drill collar two sides inner wall respectively, and collection box is located above throttle valve seat, drill collar two sides inner wall difference
Vertical placing groove is opened up, placing groove is located above collection box, and waterproof machine, waterproof is fixedly mounted in every placing groove top inner wall
The first vertical screw rod is fixedly mounted in the output shaft bottom end of motor, and cooperation is equipped with the first nut on every first screw rod, and two the
The opposite end of one nut is respectively articulated with the hemispheric filtering screen frame of installation, fixed installation filter screen in each filtering screen frame, and two
The rear and front end of the opposite face of a filtering screen frame opens up the first groove respectively, is located on same horizontal axis simultaneously opening direction
Cooperation is equipped with a connecting rod in two opposite the first grooves, and two connecting rods are parallel to each other, the relative edge of two connecting rods
Sliding slot is opened up respectively, and sliding block, every two pieces of sliding block energy is fixedly mounted in the rear and front end of the opposite face of two filtering screen frames respectively
It is inserted into a sliding slot, is fixedly connected between four pieces of sliding blocks by one piece of filter screen, each collection box top opens up through-hole, often
The side inner wall of a through-hole opens up the second groove, and horizontal telescopic rod is fixedly mounted in the side inner wall of the second groove, telescopic rod
Crushing block is fixedly mounted towards through-hole, the movable boom end of telescopic rod in direction of extension, and each through-hole wall is fixedly connected with pipeline
The other end of one end, every pipeline can be fixedly connected with and penetrate through filter screen with the filter screen in filtering screen frame, and crushing block can be with pipe
Road is engaged.
A kind of continuous wave positive pulse generator of linear motor driving as described above, the collection box bottom end side is opened
If outlet, the two sides outer wall of drill collar opens up sewage draining exit respectively, and sewage draining exit is in same level with outlet and inside communicates,
Vertical elevating lever is fixedly mounted in each collection box two sides inner wall respectively, passes through level between the motion bar bottom end of two elevating levers
Connecting plate be fixedly connected, connecting plate bottom surface opens up sliding groove, and fixed block is fixedly mounted in connecting plate bottom surface both side respectively, and two pieces are solid
Determine the second screw rod that activity installation between block has motor, cooperation is equipped with the second nut on the second screw rod, and the second nut top is solid
Determine installation sliding block, sliding shoe can be inserted into sliding groove, and solid hopkinson bar is fixedly mounted in the rear end of the second nut, and the second nut is located at
Solid hopkinson bar one end, solid hopkinson bar can pass through outlet, sewage draining exit and be fitted close with outlet, sewage draining exit.
The continuous wave positive pulse generator of a kind of linear motor driving as described above, in the collection box rear and front end
Wall opens up strip grooves respectively, and strip grooves are located at lower section in collection box, and activity installation is horizontal between the two sides inner wall of every strip grooves
The third screw rod with motor, cooperation is equipped with third nut on every third screw rod, by vertical between two third nuts
Push plate be fixedly connected, push plate is located at below the second screw rod.
A kind of continuous wave positive pulse generator of linear motor driving as described above, described is located at same trunnion axis
On line and the upper and lower ends inner wall of two opposite the first grooves of opening direction is fixedly mounted stop block respectively, and the two of connecting rod
Block is fixedly mounted in end respectively, and block is located in the first groove.
A kind of continuous wave positive pulse generator of linear motor driving as described above, the collection box two sides inner wall point
Vertical guide groove is not opened up, and guide pad is fixedly mounted in the two sides of connecting plate respectively, and every piece of guide pad can be inserted into corresponding one
In guide groove.
A kind of continuous wave positive pulse generator of linear motor driving as described above, the section of the guide groove is swallow
Tail type, the section of guide pad are dove-tail form.
The invention has the advantages that first passing around filtering screen frame after mud enters in drill collar and then flowing downward, pass through filtering
Filter screen in screen frame is filtered the large granular impurity in mud, and large granular impurity is avoided to cause to damage to internal component
Bad, by prolonged use, the more large granular impurity retained on filter screen can block filter mesh, one of them is anti-at this time
Hydroelectric machine work, the output shaft of waterproof machine are fixedly connected with the first screw rod, and waterproof machine drives the rotation of the first screw rod, the first spiral shell
Bar and the first nut thread cooperate, the first nut and filtering screen frame articulated connection, the first nut drive one end of filtering screen frame to
Upper movement, large granular impurity under gravity, slide on the filter screen of another filtering screen frame, and be flowed into pipeline
Interior, telescopic rod is in contraction state at this time, and crushing block is located in the second groove, and then large granular impurity enters in collection box, leads to
Staggeredly working for two waterproof machines is crossed, respectively enters the large granular impurity on filter screen in collection box, in filtering screen frame
Filter screen cleared up, make to flow more smoothly, and two filtering connections of the screen frame by connecting rod, two mistakes can be made
Filter screen frame extends movement routine in banking motion, while also avoiding two filtering screen frame separation, and in two filtering screen frames
When banking motion, gap is generated between two filtering screen frames, and filters screen frame and is fixedly connected with a slide block, sliding block is located in sliding slot,
It being fixedly connected between four pieces of sliding blocks by a filter screen, filter screen frames shift dynamic band movable slider in sliding slot, makes to filter net unfolding,
And generated gap is separated to two filtering screen frames by filter screen and carries out filtering slurry, avoid the bulky grain in scale removal process
Impurity filters the gap between screen frame from two and flows through.The large granular impurity in mud can be filtered through the invention,
It avoids large granular impurity from entering inside drill collar to damage other components, and in use for some time, it can be to mistake
Impurity on strainer is cleared up, and prolonged use is avoided, and large granular impurity blocks filter mesh, prevents from causing circulation not
Freely, make its using effect more preferably.Two filtering screen frames are staggeredly raised respectively, i.e., the hinge of one of filtering screen frame and the first nut
Contact moves up, another filtering screen frame is stationary, and two filtering screen frames generate an inclined-plane at this time, big on filter screen
Granule foreign flows under gravity, and then separately flows into two pipelines, thus miscellaneous to the bulky grain on filter screen
Matter is cleared up.When without cleaning, telescopic rod be in extended state, i.e. crushing block and tube contacts and in through-hole,
Pipeline is in closed state at this time, i.e., pipeline not with communicated inside collection box, can prevent mud from entering in collection box.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is structural schematic diagram of the invention；Fig. 2 is the partial enlarged view of the I of Fig. 1.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
A kind of continuous wave positive pulse generator of linear motor driving, as shown, including drill collar 1,1 two sides inner wall of drill collar
Throttle valve seat 2 is fixedly mounted respectively, linear motor 3 is fixedly mounted in 1 rear end inner wall of drill collar, and linear motor 3 is located under throttle valve seat 2
Vertical support column 4 is fixedly mounted in side, 3 top of linear motor, and rotary table 5 is fixedly mounted in 4 top of support column, and rotary table 5 is located at throttling
2 lower section of valve seat can simultaneously be engaged with throttle valve seat 2, and the work of linear motor 3 drives support column 4, rotary table 5 to move up and down, circle
Contact between platform 5 and throttle valve seat 2, generates the mud pulse signal of a column, and collection is fixedly mounted in 1 two sides inner wall of drill collar respectively
Box 6, collection box 6 are located at 2 top of throttle valve seat, and 1 two sides inner wall of drill collar opens up vertical placing groove 7 respectively, and placing groove 7, which is located at, to be received
Collect the top of box 6, every 7 top inner wall of placing groove is fixedly mounted waterproof machine, and two waterproof machines can staggeredly work or two
The output shaft rotary axis direction of waterproof machine is lifted upwards on the contrary, reaching one of filtering screen frame, another filter screen
Frame keeps original position or moves down, and the first vertical screw rod 8, every first spiral shell is fixedly mounted in the output shaft bottom end of waterproof machine
Cooperation is equipped with the first nut 9 on bar 8, and the opposite end of two the first nuts 9 is respectively articulated with the hemispheric filtering screen frame 10 of installation,
Filter screen is fixedly mounted in each filtering screen frame 10, the rear and front end of the opposite face of two filtering screen frames 10 opens up first respectively
Groove 11, cooperation is equipped with a connecting rod on same horizontal axis and in two opposite the first grooves 11 of opening direction
12, two connecting rods 12 are parallel to each other, and the relative edge of two connecting rods 12 opens up sliding slot 13 respectively, and two are filtered screen frame 10
Sliding block 14 is fixedly mounted in the rear and front end of opposite face respectively, and every two pieces of sliding blocks 14 can be inserted into a sliding slot 13, four pieces of cunnings
It is fixedly connected between block 14 by one piece of filter screen, each 6 top of collection box opens up through-hole 15, the side inner wall of each through-hole 15
The second groove 16 is opened up, horizontal telescopic rod 17, the direction of extension of telescopic rod 17 is fixedly mounted in the side inner wall of the second groove 16
Towards through-hole 15, crushing block 18 is fixedly mounted in the movable boom end of telescopic rod 17, and each 15 inner wall of through-hole is fixedly connected with pipeline 19
One end, the other end of every pipeline 19 can be fixedly connected with and penetrate through filter screen, crushing block with the filter screen in filtering screen frame 10
18 can be engaged with pipeline 19, and when not clearing up the impurity on filter screen, crushing block 18 contacts with pipeline 19 and is located at through-hole
In 15, pipeline 19 is in closed state at this time.After mud enters in drill collar 1, first passes around filtering screen frame 10 and then flows downward,
The large granular impurity in mud is filtered by the filter screen in filtering screen frame 10, avoids large granular impurity to internal first device
Part damages, and by prolonged use, the more large granular impurity retained on filter screen can block filter mesh, at this time its
In the work of waterproof machine, the output shaft of waterproof machine is fixedly connected with the first screw rod 8, waterproof machine the first screw rod 8 of drive
Rotation, the first screw rod 8 are threadedly engaged with the first nut 9, and the first nut 9 is articulated and connected with filtering screen frame 10, and the first nut 9 drives
One end of filtering screen frame 10 moves up, and large granular impurity under gravity, slides into the mistake of another filtering screen frame 10
On strainer, and it is flowed into pipeline 19, telescopic rod 17 is in contraction state at this time, and crushing block 18 is located in the second groove 16, into
And large granular impurity enters in collection box 6, by the staggeredly work of two waterproof machines, makes the large granular impurity point on filter screen
The filter screen in filtering screen frame Jin Ru not be cleared up in collection box 6, make to flow more smoothly, and two filtering screen frames
10 pass through the connection of connecting rod 12, two filtering screen frames 10 can be made to extend movement routine in banking motion, while also avoiding
Two filtering screen frame 10 separation, and in two filtering 10 banking motions of screen frame, gap is generated between two filtering screen frames 10,
And filter screen frame 10 and be fixedly connected with sliding block 14, sliding block 14 is located in sliding slot 13, passes through a filter screen between four pieces of sliding blocks 14
It is fixedly connected, the mobile band movable slider 14 of filtering screen frame 10 makes to filter net unfolding in sliding slot 13, and by filter screen to two mistakes
Filter screen frame 10 separate caused by gap carry out filtering slurry, avoid in scale removal process large granular impurity from two filtering screen frames
It flows through in gap between 10.The large granular impurity in mud can be filtered through the invention, avoid large granular impurity into
Enter and other components are damaged inside drill collar, and in use for some time, the impurity on filter screen can be carried out
Cleaning, avoids prolonged use, and large granular impurity blocks filter mesh, prevents from causing to circulate unsmooth, make its using effect more
It is good.Two filtering screen frames 10 are staggeredly raised respectively, i.e., the hinge joint of one of filtering screen frame 10 and the first nut 9 is to moving up
Dynamic, another filtering screen frame 10 is stationary, and two filtering screen frames 10 generate an inclined-plane at this time, and the bulky grain on filter screen is miscellaneous
Matter flows under gravity, and then separately flows into two pipelines 19, thus to the large granular impurity on filter screen into
Row cleaning.When without cleaning, telescopic rod 17 is in extended state, i.e. crushing block 18 contacts with pipeline 19 and is located at through-hole 15
Interior, pipeline 19 is in closed state at this time, i.e. pipeline 19 is not communicated with inside collection box 6, can prevent mud from entering collection box 6
It is interior.
Specifically, 6 bottom end side of collection box described in the present embodiment opens up outlet 20, the two sides outer wall point of drill collar 1
Sewage draining exit is not opened up, and sewage draining exit is in same level with outlet 20 and inside communicates, each 6 two sides inner wall of collection box difference
Vertical elevating lever 21 is fixedly mounted, connects between the motion bar bottom end of two elevating levers 21 by the way that horizontal connecting plate 22 is fixed
Connect, 22 bottom surface of connecting plate opens up sliding groove 26, and 22 bottom surface both side of connecting plate is fixedly mounted fixed block respectively, two pieces of fixed blocks 23 it
Between activity installation have the second screw rod 24 of motor, cooperation is equipped with the second nut 25,25 top of the second nut on the second screw rod 24
Sliding shoe 27 is fixedly mounted, sliding shoe 27 can be inserted into sliding groove 26, and solid hopkinson bar 28 is fixedly mounted in the rear end of the second nut 25,
Second nut 25 is located at 28 one end of solid hopkinson bar, and solid hopkinson bar 28 can pass through outlet 20, sewage draining exit and tight-lipped with outlet 20, blowdown
Close fit.The motor of second screw rod 24 is installed therein on the medial surface of one piece of fixed block 23, is needed after work to receipts
When collection box 6 is cleared up, the motor work of the second screw rod 24 drives the rotation of the second screw rod 24, the second screw rod 24 and the second nut
25 are threadedly engaged, and the second nut 25 is fixedly connected with sliding shoe 27, and sliding shoe 27 is inserted into sliding groove 26, and then the second screw rod
24 rotations can make the second nut 25 that solid hopkinson bar 28 be driven to move into collection box 6, outlet 20, sewage draining exit be exposed, then
Elevating lever 21 is shunk, and drives connecting plate 22, the second screw rod 24, solid hopkinson bar 28 to move up, the impurity in collection box 6 passes through discharge
Mouth 20, sewage draining exit exclude collection box 6, consequently facilitating next time uses, are not clearing up in collection box 6, solid hopkinson bar 28 is inserted into discharge
In mouth 20, sewage draining exit, prevent impurity from entering in collection box 6 from sewage draining exit, outlet 20.
Specifically, 6 rear and front end inner wall of collection box described in the present embodiment opens up strip grooves 29 respectively, strip grooves 29 are located at
Below in collection box 6, the horizontal third screw rod 30 with motor of activity installation between the two sides inner wall of every strip grooves 29, often
Cooperation is equipped with third nut 31 on root third screw rod 30, is fixedly connected between two third nuts 31 by vertical push plate 32,
Push plate 32 is located at 24 lower section of the second screw rod.The motor of third screw rod 30 is mounted on the side inner wall of strip grooves 29, outlet 20,
After sewage draining exit exposes, the motor of third screw rod 30 works, and drives third screw rod 30 to work, third screw rod 30 and 31 spiral shell of third nut
Line cooperates, and is fixedly connected, and then impurity can be pushed to outlet 20, is made miscellaneous by push plate 32 between two third nuts 31
Mass-energy smoothly flows out, and makes in collection box more clean, and impurity residual volume is less, in the next use in can store it is more,
Using more convenient.
Further, be located at described in the present embodiment two that on same horizontal axis and opening direction is opposite it is first recessed
Stop block 33 is fixedly mounted in the upper and lower ends inner wall of slot 11 respectively, and block 34 is fixedly mounted in the both ends of connecting rod 12 respectively,
Block 34 is located in the first groove 11.By the cooperation of stop block 33 and block 34, connecting rod 12 can be prevented from one first
It is removed in groove 11, two filtering screen frame separation is avoided, to keep structure more stable.
Further, 6 two sides inner wall of collection box described in the present embodiment opens up vertical guide groove 35, connecting plate respectively
Guide pad 36 is fixedly mounted in 22 two sides respectively, and every piece of guide pad 36 can be inserted into a corresponding guide groove 35.Guide pad
36 with the cooperation of guide groove 35, the stress in use of connecting plate 22 can be made more stable, structure is more stable.
Further, the section of guide groove 35 described in the present embodiment is dove-tail form, and the section of guide pad 36 is dovetail
Type.The section of guide groove and guide pad is dove-tail form, and connecting plate 22 can be in horizontality always in use, and to even
Fishplate bar 22 is oriented to, and use is more convenient.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of continuous wave positive pulse generator of linear motor driving, it is characterised in that: including drill collar (1), drill collar (1) two sides
Inner wall is fixedly mounted throttle valve seat (2) respectively, and linear motor (3) are fixedly mounted in drill collar (1) rear end inner wall, linear motor (3) position
Below throttle valve seat (2), linear motor (3) top is fixedly mounted vertical support column (4), the fixed peace in support column (4) top
It fills rotary table (5), rotary table (5) is located at below throttle valve seat (2) and can be engaged with throttle valve seat (2), drill collar (1) two sides inner wall
Collection box (6) are fixedly mounted respectively, collection box (6) is located above throttle valve seat (2), and drill collar (1) two sides inner wall opens up perpendicular respectively
To placing groove (7), placing groove (7) is located above collection box (6), and anti-water power is fixedly mounted in every placing groove (7) top inner wall
Vertical the first screw rod (8) is fixedly mounted in machine, the output shaft bottom end of waterproof machine, and cooperation is equipped with the on every first screw rod (8)
One nut (9), the opposite end of two the first nuts (9) are respectively articulated with the hemispheric filtering screen frame (10) of installation, each filtering
Filter screen is fixedly mounted in screen frame (10), the rear and front end of the opposite face of two filterings screen frame (10) opens up the first groove respectively
(11), cooperation is equipped with a connecting rod on same horizontal axis and in two opposite the first grooves (11) of opening direction
(12), two connecting rods (12) are parallel to each other, and the relative edge of two connecting rods (12) opens up sliding slot (13) respectively, two filterings
Sliding block (14) are fixedly mounted respectively in the rear and front end of the opposite face of screen frame (10), and every two pieces of sliding blocks (14) can be inserted into a cunning
In slot (13), it is fixedly connected between four pieces of sliding blocks (14) by one piece of filter screen, each collection box (6) top opens up through-hole
(15), the side inner wall of each through-hole (15) opens up the second groove (16), and water is fixedly mounted in the side inner wall of the second groove (16)
Flat telescopic rod (17), towards through-hole (15), the movable boom end of telescopic rod (17) is fixed to pacify the direction of extension of telescopic rod (17)
It fills crushing block (18), each through-hole (15) inner wall is fixedly connected with one end of pipeline (19), and the other end of every pipeline (19) can be with
Filter screen in filtering screen frame (10) is fixedly connected with and penetrates through filter screen, and crushing block (18) can be engaged with pipeline (19).
2. a kind of continuous wave positive pulse generator of linear motor driving according to claim 1, it is characterised in that: described
Collection box (6) bottom end side open up outlet (20), the two sides outer wall of drill collar (1) opens up sewage draining exit respectively, sewage draining exit and row
Outlet (20) is in same level and inside communicates, and vertical lifting is fixedly mounted in each collection box (6) two sides inner wall respectively
Bar (21) is fixedly connected between the motion bar bottom end of two elevating levers (21), connecting plate (22) by horizontal connecting plate (22)
Bottom surface opens up sliding groove (26), and fixed block is fixedly mounted in connecting plate (22) bottom surface both side respectively, lives between two pieces of fixed blocks (23)
Dynamic installation has the second screw rod (24) of motor, and cooperation is equipped with the second nut (25) on the second screw rod (24), the second nut (25)
Sliding shoe (27) are fixedly mounted in top, and sliding shoe (27) can be inserted into sliding groove (26), and the rear end of the second nut (25) is fixed
It installs solid hopkinson bar (28), the second nut (25) is located at solid hopkinson bar (28) one end, and solid hopkinson bar (28) can pass through outlet (20), blowdown
Mouth is simultaneously fitted close with outlet (20), sewage draining exit.
3. a kind of continuous wave positive pulse generator of linear motor driving according to claim 2, it is characterised in that: described
Collection box (6) rear and front end inner wall open up respectively strip grooves (29), strip grooves (29) are located at lower section in collection box (6), every
The horizontal third screw rod (30) with motor of activity installation, every third screw rod (30) between the two sides inner wall of strip grooves (29)
Upper cooperation is equipped with third nut (31), is fixedly connected between two third nuts (31) by vertical push plate (32), push plate
(32) it is located at below the second screw rod (24).
4. a kind of continuous wave positive pulse generator of linear motor driving according to claim 1, it is characterised in that: described
Be located on same horizontal axis and the upper and lower ends inner wall of two opposite the first grooves (11) of opening direction is solid respectively
Dingan County fills stop block (33), and block (34) are fixedly mounted respectively in the both ends of connecting rod (12), and block (34) is located at the first groove
(11) in.
5. a kind of continuous wave positive pulse generator of linear motor driving according to claim 2, it is characterised in that: described
Collection box (6) two sides inner wall open up respectively vertical guide groove (35), guiding is fixedly mounted in the two sides of connecting plate (22) respectively
Block (36), every piece of guide pad (36) can be inserted into a corresponding guide groove (35).
6. a kind of continuous wave positive pulse generator of linear motor driving according to claim 5, it is characterised in that: described
The section of guide groove (35) be dove-tail form, the section of guide pad (36) is dove-tail form.
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| CN201811533927.6A CN109736786B (en) | 2018-12-14 | 2018-12-14 | Continuous wave positive pulse generator driven by linear motor |
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| CN201811533927.6A CN109736786B (en) | 2018-12-14 | 2018-12-14 | Continuous wave positive pulse generator driven by linear motor |
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| CN111140200A (en) * | 2020-02-18 | 2020-05-12 | 中国石油大学(华东) | Positive-negative coupling pulse chemical physical blockage removal system and blockage removal method |
| CN112796740A (en) * | 2021-01-27 | 2021-05-14 | 东营精控恒通钻井技术有限公司 | Continuous wave mud pressure pulse generator |
| CN115920505A (en) * | 2023-03-10 | 2023-04-07 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Geothermal water degassing and purifying device |
| CN115920505B (en) * | 2023-03-10 | 2023-08-22 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Geothermal water degassing and purifying device |
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Effective date of registration: 20211125 Address after: 257300 the intersection of Central Avenue and Binsi Road, Guangrao Binhai New Area, Dongying City, Shandong Province, 50 meters south Patentee after: SHANDONG DINGSHENG ELECTROMECHANICAL EQUIPMENT Inc. Address before: 257061 Taihangshan Road Economic Park, Dongying District, Dongying City, Shandong Province Patentee before: DONGYING HENGTONG DRILLING TECHNOLOGY CO.,LTD. |