CN105598103B - A kind of wiper hydraulic control brake gear - Google Patents

A kind of wiper hydraulic control brake gear Download PDF

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Publication number
CN105598103B
CN105598103B CN201610015859.9A CN201610015859A CN105598103B CN 105598103 B CN105598103 B CN 105598103B CN 201610015859 A CN201610015859 A CN 201610015859A CN 105598103 B CN105598103 B CN 105598103B
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CN
China
Prior art keywords
cylinder
oil cylinder
pedestal
wiper
connecting rod
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610015859.9A
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Chinese (zh)
Other versions
CN105598103A (en
Inventor
邓兰
梁政
邓严
刘稳
何虹钢
叶哲伟
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Southwest Petroleum University
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Southwest Petroleum University
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Priority to CN201610015859.9A priority Critical patent/CN105598103B/en
Publication of CN105598103A publication Critical patent/CN105598103A/en
Application granted granted Critical
Publication of CN105598103B publication Critical patent/CN105598103B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/04Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/049Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The present invention relates to a kind of wiper hydraulic control brake gear, the shortcoming of by-passing valve control mode can be overcome.Its technical scheme:Speed acquisition wheel is pressed on inner-walls of duct by hydraulic coupling, speed acquisition wheel drive hydraulic pump, hydraulic oil flows back to fuel tank by choke valve, choke pressure is delivered to center oil cylinder, oil cylinder pushing drawing head, drawing head produces the thrust to pipeline, thrust to be directly proportional to the wiper speed of service by linkage to brake block.Wiper hydraulic control brake gear of the present invention only needs to be arranged on wiper rear side, and can carry testing equipment can be applied to multiclass pigging operation.

Description

A kind of wiper hydraulic control brake gear
Technical field
The present invention relates to a kind of wiper hydraulic control brake gear.
Background technology
In pigging and detection process is carried out to oil-gas pipeline, the general laws and regulations requirement pigging equipment speed of service be 3.5~ 5m/s;Pipeline detection equipment is in order to obtain preferably detection data quality, it is desirable to which the speed of service of equipment is less than 5m/s;Electromagnetism Ultrasonic detection equipment then requires that its speed of service is less than 2m/s.Wiper is by pipeline climb and fall section, bending section, hydrops, product Speed is changed greatly when sand and fouling section, directly can not meet speed control requirement using conventional wiper.
Existing oil-gas pipeline wiper speed control method is active control mode and passive control mode.
Active control uses by-passing valve control mode, and its technical scheme is:Wiper speed or use are gathered with mileage wheel Acceleration transducer obtains wiper speed;Electric-control system is to signal transacting;The opening degree of eduction valve is adjusted by motor; Again by pressure difference before and after eduction valve aperture regulation wiper, wiper motive force is adjusted, so as to control the wiper speed of service.
Passive control mode is by adjusting the pressure medium and flow of arrival end and the port of export in pigging operation come indirectly Control wiper speed.Because the compressibility of gas, passive control mode is often difficult to reach preferable speed control effect, clearly Pipe device easily because speed is excessive causes impact, the problems such as cause wiper and pipe damage.
Patent CN201410708220.X discloses a kind of wiper speed control with hydraulic system, patent CN201310496586.0 discloses a kind of mechanical tube cleaner speed control, and scheme described in above-mentioned two patent is by wiper Speed is converted into the rotation of centroplasm gauge block by hydraulic system, and mass rotates the centrifugal force for producing and produces extruding to brake block Power.Program mass and link rotatable, are adapted to gas pipeline, and for fluid pipeline, mass rotary resistance is larger, speed Feedback can be a greater impact.
Patent CN201520301095.0 discloses a kind of wiper speed control, changes scheme and acts on hydraulic control brake weight On the scroll wheel of controller rear end, when accumulator Preliminary pressure-filled is too high or pipeline in have wax deposition or wiper excessive velocities When, controller trailing wheel can locking, the deformation of trailing wheel eccentric wear.
Current active control mode controlled motor consumption electric energy, the accumulator electric-quantity that wiper is carried is limited therefore long It is restricted apart from pipeline cleaning.On the other hand, the by-passing valve control program of automatically controlled mode is because it is contemplated that pipe interior medium, pipeline shape The factors such as shape and become complicated.It is general to insulate one section of liquid using two closed type wipers when pipe ultrasonic ripple is detected Post, ultrasonic detecting equipment is immersed in and couplant is used fluid as in liquid.Under this kind of operating mode, wiper front and back end medium Can not communicate, so by-passing valve control mode is using being restricted.In pipeline discharge opeing operation, promote clear from rear end using gas Pipe device is run forward, and liquid is pushed away and scans out pipeline by wiper.In this kind of operation, wiper front and back end medium equally can not be even Logical, otherwise liquid can earial drainage time wiper rear end.State's internal bypass valve active control mode wiper is still immature, and external such is clear Pipe device rents expensive, and country's oil-gas pipeline pigging is still based on passive control mode at present.
Therefore, develop that the wider array of wiper active controller of applicable working condition is significant and prospect of the application.
The content of the invention
The purpose of the present invention:In order to overcome wiper by-passing valve earial drainage speed control method and existing brake control valve side The shortcoming of case, spy provides a kind of wiper hydraulic control brake gear.
To reach above-mentioned purpose, the present invention is adopted the technical scheme that:
A kind of wiper hydraulic control brake gear, including brake block, connecting rod A, connecting rod B, connection ring, end cap, oil cylinder A, cylinder, Piston, piston rod, compression spring, cylinder cap, drawing head, speed acquisition wheel, hydraulic pump, support, plunger, oil cylinder B, pedestal, fuel tank, Accumulator, check valve, choke valve, it is characterised in that:
Pedestal generally truncated cone-shaped, pedestal outer face sets the connection of connection ring blending bolt;Pedestal is radially arranged section The groove of rectangle, support is installed in the groove in the middle of pedestal, radially sliding along pedestal in the groove that support can be in the middle of pedestal; Stationary hydraulic pump on support, hydraulic pump input shaft installation rate collection wheel, pedestal lower end sets plunger, and plunger is installed to oil cylinder B Interior, oil cylinder B is fixed in pedestal radial slot;
Fuel tank bolt is installed to base central position, and the connection of end cap blending bolt, the cylinder other end are installed in cylinder one end Installation pedestal blending bolt is connected, and accumulator is installed near base position in cylinder;End cap outer side center position sets connection ring Blending bolt is connected, and oil cylinder A is arranged in cylinder, and oil cylinder A ends are installed to end cap central position by bolt;Set in oil cylinder A Put piston and piston rod, cylinder cap is installed in oil cylinder A outer ends, oil cylinder A sets drain tap near cylinder cap position, piston rod is from cylinder cap center Circular hole stretches out, and piston rod external part installs drawing head;Compression spring is set between piston and cylinder cap;
Brake block articulated linkage A and connecting rod B, the connecting rod A other ends are hinged to the side of drawing head, the other end hinge of connecting rod B It is connected to end cap sidewall;The axially arranged chute of cylinder, connecting rod A is stretched into cylinder through chute;
Hydraulic pump inlet port is connected to fuel tank, and hydraulic pump oil-out is connected to choke valve by check valve, and choke valve is fuel-displaced Mouth is connected to fuel tank;Oil cylinder A is connected to throttling valve inlet, and oil cylinder B is connected to throttling valve inlet, oil cylinder B entrances by check valve Position connects accumulator.
The invention has the advantages that:(1) wiper hydraulic control brake gear of the present invention only needs to be arranged on clearly Pipe device rear side, can be applied to multiclass pigging operation;(2) wiper hydraulic control brake gear of the present invention is without electric elements, peace It is complete reliable, it is not necessary to by accumulators store energy, can be used for long away from pipeline cleaning;(3) wiper hydraulic control of the present invention Brake gear major diameter is smaller, easily by bend pipe position.
Brief description of the drawings
Fig. 1 is structure diagram of the invention.
Fig. 2 is the schematic diagram of hydraulic system of the present invention.
In figure:1. brake block;2. connecting rod A;3. connecting rod B;4. connection ring;5. end cap;6. oil cylinder A;7. cylinder;8. piston; 9. piston rod;10. compression spring;11. cylinder caps;12. drawing heads;13. speed acquisition wheels;14. hydraulic pumps;15. supports;16. posts Plug;17. oil cylinder B;18. pedestals;19. fuel tanks;20. accumulators;21. check valves;22. choke valves.
Specific embodiment
The present invention is not limited by following embodiments, can be determined with technology according to the present invention scheme and actual conditions Specific embodiment.Make following description to the present invention with reference to Fig. 1, Fig. 2.The position relationship of upper and lower, left and right etc. be according to Determine according to the layout direction of Figure of description 1.
As shown in figure 1, the generally truncated cone-shaped of pedestal 18, the outer face of pedestal 18 sets the connection of the blending bolt of connection ring 4, connection Ring 4 is used to connect other wipers or pipe testing apparatus.Pedestal 18 is radially arranged the groove of rectangular cross-section, and support 15 is installed In groove in the middle of to pedestal 18, support 15 can be in radially sliding along pedestal 18 in the groove in the middle of pedestal 18.On support 15 Stationary hydraulic pump 14, the input shaft installation rate collection wheel 13 of hydraulic pump 14, the lower end of support 15 sets plunger 16, and plunger 16 is installed to In oil cylinder B17, oil cylinder B17 is fixed in the radial slot of pedestal 18.
As shown in figure 1, the bolt of fuel tank 19 is installed to the center of pedestal 18.The one end of cylinder 7 is installed by the blending bolt of end cap 5 Connection, the blending bolt of 7 other end installation pedestal of cylinder 18 connection, accumulator 20 is installed in cylinder 7 near the position of pedestal 18.End cap 5 outer side center positions set the connection of the blending bolt of connection ring 4, and connection ring 4 is used to connect other wipers or pipe detection sets It is standby.Oil cylinder A6 is arranged in cylinder 7, and oil cylinder A6 ends are installed to the center of end cap 5 by bolt.Piston is set in oil cylinder A6 8 and piston rod 9, cylinder cap 11 is installed in oil cylinder A6 outer ends, and piston rod 9 stretches out from the center hole of cylinder cap 11, and the external part of piston rod 9 is installed Drawing head 12.Compression spring 10 is set between piston 8 and cylinder cap 11, and compression spring 10 allows piston rod 9 to be contracted under not working condition In oil return cylinder A6, brake block 1 is set to withdraw not extrusion pipe.
As shown in figure 1, the articulated linkage A2 of brake block 1 and connecting rod B3, the connecting rod A2 other ends are hinged to the side of drawing head 12, The other end of connecting rod B3 is hinged to the side of end cap 5.The axially arranged chute of cylinder 7, connecting rod A2 is stretched into cylinder 7 through chute.Even Bar A2 can be slided under the dragging of drawing head 12 in the axial slide of cylinder 7.
As shown in Fig. 2 the inlet port of hydraulic pump 14 is connected to fuel tank 19, the oil-out of hydraulic pump 14 is connected to by check valve 21 Choke valve 22, the oil-out of choke valve 22 is connected to fuel tank 19.Oil cylinder A6 is connected to the entrance of choke valve 22, and oil cylinder B17 is by unidirectional Valve 21 is connected to the entrance of choke valve 22, oil cylinder B17 entry positions connection accumulator 20.In hydraulic pump 14 not operation, accumulation of energy The pressure of device 20 can promote the plunger 16 of oil cylinder B17, speed acquisition wheel 13 is pressed on inner-walls of duct.
Operation principle of the invention is:
This wiper brake gear together runs with wiper.Support 15 is adopted speed by oil cylinder B17 thrusts Collection wheel 13 is pressed on inner-walls of duct.The rotational band hydrodynamic press pump 14 of speed acquisition wheel 13 works, and the hydraulic oil of the output of hydraulic pump 14 leads to Cross choke valve 22 and flow back to fuel tank 19, the forefront pressure of choke valve 22 is incorporated into oil cylinder A6, the piston 8 in oil cylinder A6 promotes piston rod 9 So as to drive drawing head 12 to stretch, drawing head 12 is acted on by connecting rod A2 and connecting rod B3 so that brake block 1 is pressed on inner-walls of duct Produce brake weight.
When wiper speed is raised, hydraulic fluid flow rate increases, and the choke pressure that choke valve 22 is produced increases, so as to pass through The motive force that oil cylinder A6, piston 8, piston rod 9 are delivered to drawing head 12 increases, therefore the thrust of brake block 1 increases, generation Resistance increases, speed reduction;When wiper speed reduces, the reduction of the thrust of brake block 1, the resistance reduction of generation, wiper Speed is gone up.So, the undulating value of the speed of service of wiper can reduce, and wiper runs more steady in the duct.

Claims (1)

1. a kind of wiper hydraulic control brake gear, including brake block, connecting rod A, connecting rod B, connection ring A, connection ring B, end cap, oil cylinder A, cylinder, piston, piston rod, compression spring, cylinder cap, drawing head, speed acquisition wheel, hydraulic pump, support, plunger, oil cylinder B, base Seat, fuel tank, accumulator, check valve, choke valve, it is characterised in that:
Pedestal generally truncated cone-shaped, pedestal outer face sets the connection of connection ring A blending bolts;Pedestal is radially arranged rectangular cross-section Groove, support is installed in the groove in the middle of pedestal, radially sliding along pedestal in the groove that support can be in the middle of pedestal;Support Upper stationary hydraulic pump, hydraulic pump input shaft installation rate collection wheel, pedestal lower end sets plunger, and plunger is installed in oil cylinder B, oil Cylinder B is fixed in pedestal radial slot;
Fuel tank bolt is installed to base central position, and the connection of end cap blending bolt is installed in cylinder one end, and the cylinder other end is installed Pedestal blending bolt is connected, and accumulator is installed near base position in cylinder;End cap outer side center position sets connection ring B and is used in combination Bolt connection, oil cylinder A is arranged in cylinder, and oil cylinder A ends are installed to end cap central position by bolt;Set in oil cylinder A and lived Cylinder cap is installed in plug and piston rod, oil cylinder A outer ends, and oil cylinder A sets drain tap near cylinder cap position, and piston rod is from cylinder cap center hole Stretch out, piston rod external part installs drawing head;Compression spring is set between piston and cylinder cap;
Brake block articulated linkage A and connecting rod B, the connecting rod A other ends are hinged to the side of drawing head, and the other end of connecting rod B is hinged to End cap sidewall;The axially arranged chute of cylinder, connecting rod A is stretched into cylinder through chute;
Hydraulic pump inlet port is connected to fuel tank, and hydraulic pump oil-out is connected to choke valve by check valve, and choke valve oil-out connects It is connected to fuel tank;Oil cylinder A is connected to throttling valve inlet, and oil cylinder B is connected to throttling valve inlet, oil cylinder B entry positions by check valve Connection accumulator.
CN201610015859.9A 2016-01-12 2016-01-12 A kind of wiper hydraulic control brake gear Expired - Fee Related CN105598103B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610015859.9A CN105598103B (en) 2016-01-12 2016-01-12 A kind of wiper hydraulic control brake gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610015859.9A CN105598103B (en) 2016-01-12 2016-01-12 A kind of wiper hydraulic control brake gear

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CN105598103B true CN105598103B (en) 2017-06-30

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106424032B (en) * 2016-11-19 2018-08-14 西南石油大学 A kind of wiper with dead-man's device
CN106391604B (en) * 2016-11-19 2018-10-19 西南石油大学 A kind of hydraulic control bypass valve type speed governing wiper
CN108903972B (en) * 2018-06-20 2020-12-08 青岛大学附属医院 Unilateral supplementary device for medical ultrasonic probe
CN110711750B (en) * 2019-10-30 2023-10-13 汕头市澄海区骏意玩具设计有限公司 Pipeline cleaning robot, control method and storage medium
CN112157079B (en) * 2020-09-26 2022-06-03 宜宾学院 Pipe cleaner roller type impact suppressor
CN112207096B (en) * 2020-09-26 2021-10-29 宜宾学院 Pipe cleaner speed impact suppression mechanism
CN112113064B (en) * 2020-09-26 2021-12-17 宜宾学院 Series oil cylinder type acceleration controller

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103721986A (en) * 2014-01-02 2014-04-16 西南石油大学 Pipe cleaner speed controller with brake pads
CN103977994A (en) * 2014-05-23 2014-08-13 西南石油大学 Automatic speed adjusting pipe cleaner
CN204620573U (en) * 2015-05-12 2015-09-09 西南石油大学 A kind of wiper speed control

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Publication number Priority date Publication date Assignee Title
EP2139621B1 (en) * 2007-04-27 2015-06-10 Aquamaxit L.P. Cleaning apparatus for large diameter pipes
US9810365B2 (en) * 2014-02-24 2017-11-07 Saudi Arabian Oil Company Variable speed pipeline pig with internal flow cavity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103721986A (en) * 2014-01-02 2014-04-16 西南石油大学 Pipe cleaner speed controller with brake pads
CN103977994A (en) * 2014-05-23 2014-08-13 西南石油大学 Automatic speed adjusting pipe cleaner
CN204620573U (en) * 2015-05-12 2015-09-09 西南石油大学 A kind of wiper speed control

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Granted publication date: 20170630

Termination date: 20190112