CN105570580B - A kind of pair of medium chicksan - Google Patents
A kind of pair of medium chicksan Download PDFInfo
- Publication number
- CN105570580B CN105570580B CN201610035687.1A CN201610035687A CN105570580B CN 105570580 B CN105570580 B CN 105570580B CN 201610035687 A CN201610035687 A CN 201610035687A CN 105570580 B CN105570580 B CN 105570580B
- Authority
- CN
- China
- Prior art keywords
- joint
- ring
- core pipe
- bearing
- adapter
- Prior art date
- 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.)
- Active
Links
- 239000011083 cement mortar Substances 0.000 claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 34
- 239000004519 grease Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to double medium chicksans.Main shaft is arranged in housing by bearing assembly supporting；Second core pipe is arranged on above bearing assembly, is separated between the second core pipe lower end and bearing assembly upper end by the first spacer；Upper baffle ring, thrust ball bearing and lower baffle ring are sequentially arranged in core pipe and are enclosed on main shaft, and upper baffle ring, lower baffle ring are close to the top race of thrust ball bearing, bottom race；The seat of honour is connected with housing upper end, and the first core pipe is connected to main shaft upper end, and adapter is arranged in the endoporus of main shaft, and adapter upper end is connected by the first joint with core pipe lower end, and adapter lower end connects the second joint；Tegillum is connected to seat of honour upper end, and core pipe upper end is stretched into inside tegillum, and the seat of honour is provided with inlet suction port, the small cement mortar interface connection cement mortar adapter assembly covered.In the case of the present invention can not change part being changed without device yet, the replacing or superposition of medium are carried out, and can also realize that double media inject simultaneously, the working time is saved, improves operating efficiency.
Description
Technical field
The present invention relates to a kind of chicksan, specifically double medium chicksans belong to engineering machinery
Construction tool technical field in ground-based device.
Background technology
In foundation construction, water seepage prevention or consolidation process are carried out to soil layer sometimes, so can be determined into soil layer
Spray, pendulum spray or rotary jet grouting, reach antiseepage, the purpose of consolidated subsoil bearing capacity.And conventional shower nozzle can only realize one kind mostly
The use of high-pressure medium, it is necessary to adjusting apparatus when needing to change medium, it is sometimes desirable to shut down and reequiped, therefore just
The non-cutting time of construction is extended, so that whole operating efficiency reduction.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art there is provided a kind of pair of medium chicksan,
Its clever structure is reasonable, it is possible to achieve in the case where being changed without device also without part is changed, carry out medium replacing or
Superposition, and can also realize that double media inject simultaneously, the working time is saved, operating efficiency is drastically increased.
The technical scheme provided according to the present invention：A kind of pair of medium chicksan, it is characterised in that：Including tegillum,
First core pipe, the first sealing ring, the seat of honour, the first hole back-up ring, the second sealing ring, the first joint, the first oil sealing, the second hole gear
Circle, upper baffle ring, thrust ball bearing, the second core pipe, the first spacer, lower baffle ring, housing, shaft block ring, the second oil sealing, lower cover, connect
Pipe, main shaft and the second joint；The main shaft is arranged in housing by bearing assembly supporting；The bearing assembly lower end outside leads to
Shaft block ring and the spacing encapsulation of lower cover are crossed, the lower cover is connected by screw thread with housing lower end, equipped with the between lower cover and main shaft
Two oil sealings；Second core pipe is arranged on above bearing assembly, and the second core pipe is accurately positioned in the housing, the first oil sealing press-in the
Two core pipes simultaneously carry out axial limiting with the second hole with back-up ring, and the second core pipe upper end passes through first on the inner hole wall of main shaft upper end
Hole retainer ring spacing, between the second core pipe lower end and bearing assembly upper end by be accurately positioned the first spacer in the housing every
Open；The upper baffle ring, thrust ball bearing and lower baffle ring are sequentially arranged in core pipe and are enclosed on main shaft from up to down, the upper gear
Ring is close to the top race of thrust ball bearing, and the lower baffle ring is close to the bottom race of thrust ball bearing；The seat of honour by screw thread with
Housing upper end is connected, and the second sealing ring is pressed between the seat of honour and main shaft；First core pipe is threadedly attached on main shaft
End, the adapter is arranged in the endoporus of main shaft, and adapter upper end is connected by the first joint with core pipe lower end, the connection of adapter lower end
Second joint, leaves gap between first joint, adapter and the outer wall of the second joint and the inwall of main shaft and mutually interconnects
It is logical；The tegillum is threadedly attached in seat of honour upper end, and the core pipe upper end is stretched into inside tegillum, press-fited between core pipe and tegillum
There is the first sealing ring；The seat of honour is provided with inlet suction port, and the circle that the inlet suction port is provided with by core pipe is axially small logical
Gap area between hole and the first joint and main shaft；It is described it is small cover provided with cement mortar interface, the cement mortar interface is inner
Connected with the first core pipe the inner, cement mortar interface is connected with cement mortar adapter assembly.
As a further improvement on the present invention, the bearing assembly includes clutch shaft bearing, the second spacer and second bearing group
Deep groove ball bearing is used into, the clutch shaft bearing and second bearing, between clutch shaft bearing inner ring and second bearing inner ring, first
The second spacer is provided between bearing outer ring and second bearing outer ring.
As a further improvement on the present invention, the first upper end of joint press-fitting is connected to the first core pipe lower end, and first connects
O-ring seals are provided between head and the first core pipe；The first joint lower end press-fitting is connected to adapter upper end, and the first joint is with connecing
O-ring seals are provided between pipe.
As a further improvement on the present invention, the second joint press-fitting is connected to adapter lower end, the second joint and adapter
Between be provided with O-ring seals.
As a further improvement on the present invention, the cement mortar adapter assembly includes bent sub and straight joint, described direct
Head is threadedly attached in the small cement mortar interface covered, and the bent sub is connected to the straight joint other end.
As a further improvement on the present invention, the inlet suction port on the seat of honour is connected through a screw thread Pneumatic check valve.
As a further improvement on the present invention, the position of correspondence thrust ball bearing is provided with grease fitting on the housing.
As a further improvement on the present invention, first sealing ring and the second sealing ring use v-ring.
The present invention compared with prior art, has the following advantages that：
（1）, clever structure of the present invention rationally, by carrying out ingehious design to inner body and seal construction, it is possible to achieve
In the case where being changed without device also without part is changed, the replacing or superposition of medium are carried out, is situated between while meeting two kinds of work
Matter requirements of one's work, and can also realize that double media inject simultaneously, the working time is saved, work effect is drastically increased
Rate.
（2）, the present invention can more easily use construction technology, shorten the working time, improve efficiency of construction.
（3）, the connection between each part of the invention employ multi-sealing device, it is possible to achieve better seal effect；
And described multi-sealing device has no effect on the rotation of internal mandrel, existing rotation efficiency can be kept all the time.
（4）, the present invention when inner sealing failure, there is water leakage situation, current can pass through housing and coupled core pipe
On through hole outflow, realize water leakage alarm.
（5）, the present invention housing on grease fitting is housed, rotation can be passed through to inside addition lubricating grease, the lubricating grease of injection
Rotary head internal clearance, can flow through three bearings, greatly improve the service life of bearing.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of main shaft in Fig. 1.
Fig. 3 is the structural front view of the first core pipe in Fig. 1.
Fig. 4 is Fig. 3 right view.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in the figure：Double medium chicksans in embodiment are main by bent sub 1, straight joint 2, tegillum 3, first
Core pipe 4, the first sealing ring 5, Pneumatic check valve 6, the seat of honour 7, the first hole back-up ring 8, the second sealing ring 9, the first joint 10, first
Oil sealing 11, the second hole back-up ring 12, upper baffle ring 13, thrust ball bearing 14, the second core pipe 15, the first spacer 16, lower baffle ring 17,
One bearing 18, the second spacer 19, housing 20, second bearing 21, shaft block ring 22, the second oil sealing 23, lower cover 24, adapter 25, master
Axle 26, the second joint 27, inlet suction port 28 and grease fitting 29 etc. are constituted.
As shown in Fig. 1 ~ Fig. 4, the main shaft 26 is arranged in housing 20 by bearing assembly supporting；Under the bearing assembly
End outside is by shaft block ring 22 and the spacing encapsulation of lower cover 24, and the lower cover 24 is connected by screw thread with the lower end of housing 20, lower cover
Second oil sealing 23 is housed between 24 and main shaft 26；Second core pipe 15 is arranged on above bearing assembly, and the second core pipe 15 is accurate
Within the casing 20, the first oil sealing 11 is pressed into the second core pipe 15 and axial limiting, the second core is carried out with back-up ring 12 with the second hole for positioning
The upper end of pipe 15 is spacing with back-up ring 8 by the first hole on the upper end inner hole wall of main shaft 26, the lower end of the second core pipe 15 and bearing group
Separated between part upper end by the first spacer 16 being accurately positioned within the casing 20；The upper baffle ring 13, the and of thrust ball bearing 14
Lower baffle ring 17 is sequentially arranged in core pipe and is enclosed on main shaft 26 from up to down, and the upper baffle ring 13 is close to thrust ball bearing 14
The seat of honour 7 is enclosed, and the lower baffle ring 17 is close to the bottom race of thrust ball bearing 14；The seat of honour 7 is connected by screw thread and the upper end of housing 20
Connect, the second sealing ring 9 is pressed between the seat of honour 7 and main shaft 26；First core pipe 4 is threadedly attached in the upper end of main shaft 26,
The adapter 25 is arranged in the endoporus of main shaft 26, and the upper end of adapter 25 is connected by the first joint 10 with core pipe lower end, adapter 25
Lower end is connected between the second joint 27, the inwall of first joint 10, the outer wall of the joint 27 of adapter 25 and second and main shaft 26
Leave gap and be interconnected；The tegillum 3 is threadedly attached in the upper end of the seat of honour 7, and the core pipe upper end is stretched into tegillum 3
Portion, is pressed with the first sealing ring 5 between core pipe and tegillum 3；The seat of honour 7 is provided with inlet suction port 28, the inlet suction port 28
Gap area between circle axial direction small through hole 4a and the first joint 10 and the main shaft 26 being provided with by core pipe；The tegillum 3
Cement mortar interface is provided with, the cement mortar interface is inner to be connected with the inner of the first core pipe 4, and cement mortar interface is connected with cement
Starch adapter assembly.
As shown in figure 1, in the embodiment of the present invention, the bearing assembly is main by clutch shaft bearing 18, the second spacer 19 and the
Two bearings 21 are constituted, and the clutch shaft bearing 18 and second bearing 21 use deep groove ball bearing, the inner ring of clutch shaft bearing 18 and second
The second spacer 19 is provided between the inner ring of bearing 21, between the outer ring of clutch shaft bearing 18 and the outer ring of second bearing 21.
As shown in figure 1, in the embodiment of the present invention, the upper end of the first joint 10 press-fitting is connected to the lower end of the first core pipe 4, the
O-ring seals are provided between one joint 10 and the first core pipe 4；The lower end of first joint 10 press-fitting is connected to the upper end of adapter 25,
O-ring seals are provided between first joint 10 and adapter 25.The press-fitting of second joint 27 is connected to the lower end of adapter 25, and second connects
O-ring seals are provided between first 27 and adapter 25.Described O-ring seals form multi-sealed, and what can both be realized is close
Effect is sealed, and does not influence the rotation of internal mandrel.
As shown in figure 1, in the embodiment of the present invention, the cement mortar adapter assembly includes bent sub 1 and straight joint 2, described
Straight joint 2 is threadedly attached in the cement mortar interface on tegillum 3, and the bent sub 1 is connected to the other end of straight joint 2.
As shown in figure 1, in the embodiment of the present invention, the inlet suction port 28 on the seat of honour 7 is connected through a screw thread Pneumatic unidirectional
Valve 6, the Pneumatic check valve 6 effectively can prevent high pressure gas from recoiling.
As shown in figure 1, in the embodiment of the present invention, the position of correspondence thrust ball bearing 14 is provided with lubrication on the housing 20
Oil nozzle 29.Lubricating grease can be so added to swivel joint inside by grease fitting 29, the lubricating grease of injection is connect by rotation
Head internal clearance, can flow through three bearings, greatly improve the service life of bearing.First sealing ring 5 and second
Sealing ring 9 uses v-ring, to improve sealing effectiveness.
The course of work and operation principle of the present invention is as follows：
During work, water under high pressure mud injects from bent sub 1, is connect successively through straight joint 2, tegillum 3, the first core pipe 4, first
First 10 and the second passage in core pipe 15, finally ejected from the second joint 27.Compressed air enters from Pneumatic check valve 6, warp
The gap that a circle axial direction small through hole 4a in the core pipe 4 of inlet suction port 28 and first is entered between the first joint 10 and main shaft 26
It is interior, finally sprayed from the gap between the second joint 27 and main shaft 26.Due to, provided with multi-sealed, having between the passage of two media
There is higher sealing, it is ensured that each high-pressure medium does not leak outside and do not ganged up mutually yet.Realize and rotated through in swivel joint and drilling rod
The purpose of one or two kinds of high-pressure mediums is individually or simultaneously sprayed in journey.
Due to being positioned and connecting by bearing assembly between main shaft 26 and housing 20, so during swivel joint work only
There is the part in the main shaft 26 being connected on drilling rod and main shaft 26 to rotate together, remaining grade of housing 20 is stationary state, it is ensured that
The function that internals individually rotates, also ensure that the safe and reliable of device.
Claims (8)
1. a kind of pair of medium chicksan, it is characterised in that：Including tegillum（3）, the first core pipe（4）, the first sealing ring
（5）, the seat of honour（7）, the first hole back-up ring（8）, the second sealing ring（9）, the first joint（10）, the first oil sealing（11）, the second hole use
Back-up ring（12）, upper baffle ring（13）, thrust ball bearing（14）, the second core pipe（15）, the first spacer（16）, lower baffle ring（17）, housing
（20）, shaft block ring（22）, the second oil sealing（23）, lower cover（24）, adapter（25）, main shaft（26）With the second joint（27）；It is described
Main shaft（26）Housing is arranged on by bearing assembly supporting（20）It is interior；The bearing assembly lower end outside passes through shaft block ring（22）
And lower cover（24）Spacing encapsulation, the lower cover（24）Pass through screw thread and housing（20）Lower end is connected, lower cover（24）With main shaft（26）
Between be equipped with the second oil sealing（23）；Second core pipe（15）It is arranged on above bearing assembly, the second core pipe（15）It is accurately positioned
In housing（20）In, the first oil sealing（11）It is pressed into the second core pipe（15）And with the second hole back-up ring（12）Axial limiting is carried out, the
Two core pipes（15）Upper end passes through mounted in main shaft（26）The first hole back-up ring on the inner hole wall of upper end（8）It is spacing, the second core pipe（15）
By being accurately positioned in housing between lower end and bearing assembly upper end（20）In the first spacer（16）Separate；The upper baffle ring
（13）, thrust ball bearing（14）And lower baffle ring（17）It is sequentially arranged from up to down in core pipe and is enclosed on main shaft（26）On, it is described
Upper baffle ring（13）It is close to thrust ball bearing（14）The seat of honour（7）Circle, the lower baffle ring（17）It is close to thrust ball bearing（14）Under
Seat ring；The seat of honour（7）Pass through screw thread and housing（20）Upper end is connected, the seat of honour（7）With main shaft（26）Between to be pressed with second close
Seal（9）；First core pipe（4）It is threadedly attached in main shaft（26）Upper end, the adapter（25）It is arranged on main shaft（26）
Endoporus in, adapter（25）Upper end passes through the first joint（10）It is connected, takes over core pipe lower end（25）Lower end connects the second joint
（27）, first joint（10）, adapter（25）With the second joint（27）Outer wall and main shaft（26）Inwall between leave
Gap and be interconnected；The tegillum（3）It is threadedly attached in the seat of honour（7）Tegillum is stretched into upper end, the core pipe upper end（3）It is interior
Portion, core pipe and tegillum（3）Between be pressed with the first sealing ring（5）；The seat of honour（7）It is provided with inlet suction port（28）, it is described enter
Gas joint（28）The axial small through hole of a circle being provided with by core pipe（4a）With the first joint（10）And main shaft（26）Between seam
Gap is connected；The tegillum（3）It is provided with cement mortar interface, described cement mortar interface the inner and the first core pipe（4）The inner connection, water
Mud interface is connected with cement mortar adapter assembly.
2. double medium chicksans as claimed in claim 1, it is characterised in that：The bearing assembly includes clutch shaft bearing
（18）, the second spacer（19）And second bearing（21）Composition, the clutch shaft bearing（18）And second bearing（21）Use zanjon
Ball bearing, clutch shaft bearing（18）Inner ring and second bearing（21）Between inner ring, clutch shaft bearing（18）Outer ring and second bearing（21）
The second spacer is provided between outer ring（19）.
3. double medium chicksans as claimed in claim 1, it is characterised in that：First joint（10）Upper end is press-fitted
It is connected to the first core pipe（4）Lower end, the first joint（10）With the first core pipe（4）Between be provided with O-ring seals；First joint
（10）Lower end press-fitting is connected to adapter（25）Upper end, the first joint（10）With adapter（25）Between be provided with O-ring seals.
4. double medium chicksans as claimed in claim 1, it is characterised in that：Second joint（27）Press-fitting connection
In adapter（25）Lower end, the second joint（27）With adapter（25）Between be provided with O-ring seals.
5. double medium chicksans as claimed in claim 1, it is characterised in that：The cement mortar adapter assembly includes curved
Joint（1）And straight joint（2）, the straight joint（2）It is threadedly attached in tegillum（3）On cement mortar interface, it is described curved
Joint（1）It is connected to straight joint（2）The other end.
6. double medium chicksans as claimed in claim 1, it is characterised in that：The seat of honour（7）On inlet suction port
（28）It is connected through a screw thread Pneumatic check valve（6）.
7. double medium chicksans as claimed in claim 1, it is characterised in that：The housing（20）Upper correspondence thrust ball
Bearing（14）Position grease fitting is installed（29）.
8. double medium chicksans as claimed in claim 1, it is characterised in that：First sealing ring（5）With second
Sealing ring（9）Use v-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035687.1A CN105570580B (en) | 2016-01-19 | 2016-01-19 | A kind of pair of medium chicksan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035687.1A CN105570580B (en) | 2016-01-19 | 2016-01-19 | A kind of pair of medium chicksan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570580A CN105570580A (en) | 2016-05-11 |
| CN105570580B true CN105570580B (en) | 2017-11-03 |
Family
ID=55881037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035687.1A Active CN105570580B (en) | 2016-01-19 | 2016-01-19 | A kind of pair of medium chicksan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105570580B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493012A (en) * | 2016-12-12 | 2017-03-15 | 广州轻机机械设备有限公司 | rotary distribution apparatus |
| CN106593321A (en) * | 2016-12-29 | 2017-04-26 | 江苏省无锡探矿机械总厂有限公司 | Large-drift-diameter high-pressure rotation joint used for drilling machine |
| CN107339534B (en) * | 2017-08-03 | 2023-02-10 | 无锡市艾可密封技术有限公司 | High-speed high-pressure liquid-gas rotary joint |
| CN111779904B (en) * | 2020-06-04 | 2021-09-28 | 山东恒旺集团有限公司 | Hydraulic rotary joint for rotation of excavator |
| CN119266731A (en) * | 2024-10-17 | 2025-01-07 | 中国铁建重工集团股份有限公司 | A two-way joint for grouting drilling rig |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104154A (en) * | 1989-04-25 | 1992-04-14 | Kabushiki Kaisha Kobe Seiko Sho | Swivel joint |
| US7070066B2 (en) * | 2004-04-08 | 2006-07-04 | Nordson Corporation | Liquid dispensing valve and method with improved stroke length calibration and fluid fittings |
| JP4681872B2 (en) * | 2004-12-22 | 2011-05-11 | サーパス工業株式会社 | Rotary joint and divided housing of rotary joint |
| CN2938514Y (en) * | 2006-04-18 | 2007-08-22 | 重庆大江工业(集团)有限责任公司 | Center of gyration of high-altitude operation car |
| CN201133532Y (en) * | 2007-11-29 | 2008-10-15 | 湖北三江航天万山特种车辆有限公司 | Multichannel heavy pressure swiveling joint |
| CN102661464B (en) * | 2012-02-14 | 2014-08-13 | 徐州徐工随车起重机有限公司 | Dual-purpose central rotary joint for hydraulic oil and gas |
| CN203463846U (en) * | 2013-08-29 | 2014-03-05 | 福建省闽旋科技股份有限公司 | Split double bracing type rotating joint |
| CN103758130A (en) * | 2014-01-22 | 2014-04-30 | 江苏省无锡探矿机械总厂有限公司 | Multi-medium ultrahigh pressure nozzle |
| CN204626390U (en) * | 2015-04-02 | 2015-09-09 | 无锡市安曼工程机械有限公司 | A kind of drilling tool current divider for quadruple high-pressure rotary-spray |
| CN205402022U (en) * | 2016-01-19 | 2016-07-27 | 江苏省无锡探矿机械总厂有限公司 | Two media high pressure rotary joint |
-
2016
- 2016-01-19 CN CN201610035687.1A patent/CN105570580B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105570580A (en) | 2016-05-11 |
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