CN110230731A - A kind of constant force spring device for fast reactor sodium piping - Google Patents
A kind of constant force spring device for fast reactor sodium piping Download PDFInfo
- Publication number
- CN110230731A CN110230731A CN201910480430.0A CN201910480430A CN110230731A CN 110230731 A CN110230731 A CN 110230731A CN 201910480430 A CN201910480430 A CN 201910480430A CN 110230731 A CN110230731 A CN 110230731A
- Authority
- CN
- China
- Prior art keywords
- spring
- constant force
- fast reactor
- cylinder assembly
- force spring
- 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.)
- Pending
Links
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 46
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 46
- 239000011734 sodium Substances 0.000 title claims abstract description 46
- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- 230000000007 visual effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
- F16L3/21—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs providing constant supporting spring force
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention provides a kind of constant force spring devices for fast reactor sodium piping, including spring cylinder assembly, slewing frame component, bolt assembly, wherein, spring is equipped in spring cylinder assembly in the horizontal direction, spring pull rod is passed through from spring inner, one end is fixed with spring pressure plate component center, and the other end is pierced by spring cylinder assembly and connect with slewing frame component；Slewing frame component includes a shell, shell is fixedly connected with spring cylinder assembly, and rotation section is equipped in shell, and one end of rotation section is flexibly connected with spring pull rod, the other end is connect with the bolt assembly being arranged along the vertical direction, and rotation section can be rotated centered on main shaft in the lower part of the housing is arranged；Arc port is equipped on shell, setting displacement label, displacement label are marked equipped with load at arc port, and the clamping block connecting with rotation section passes through the arc port on shell.The present invention is able to ascend the use scope of constant force spring device, and the working condition of constant force spring device can be understood more intuitively.
Description
Technical field
The invention belongs to the designs of the structure of spring supporting device, and in particular to a kind of constant force spring for fast reactor sodium piping
Device.
Background technique
Currently, the not applicable support to sodium piping of constant force spring device on the market.In fast reactor sodium piping, constant force spring
Device will not only be supported pipeline, it is also necessary to the support to sodium valves equipment.In sodium piping, the filler of pipeline is liquid
State sodium, sodium are chemically active alkali metal, therefore have certain risk, and secondly its temperature is higher, 250 DEG C~550
℃.Therefore it is required that constant force spring device will not only consider its design safety and material particularity.
Such as Chinese patent CN206682421U discloses a kind of load lock and adjustment modified constant-force spring hanger,
Including front end plate, spring shield cylinder, outer framework, slewing frame, pull rod, main shaft, tail portion end plate, spring pull rod, guide sleeve and load
Lotus adjusting nut；The one side of front end plate is fixed on the end face of spring shield cylinder one end, and outer framework is fixed on front end plate
On another side, the end of slewing frame is located in outer framework, and main shaft passes through outer framework and slewing frame for outer framework and revolution
Frame is connected, and tail portion end plate is located in the other end of spring shield cylinder, and spring, one end of spring pull rod are provided in spring shield cylinder
It is connected with guide sleeve, the other end of spring pull rod is then passed through front end plate, spring and tail portion end plate after being pierced by outer framework and carries
Lotus adjusting nut is connected, and guide sleeve is connected with slewing frame by load bolt.The technical solution lacks left and right displacement mark
Board can not differentiate the constant-force spring hanger working condition, lack guiding device, be easy so that spring generates when being pressurized
Angle offset.
Summary of the invention
It is an object of the invention to aiming at the problems existing in the prior art, provide a kind of constant force for fast reactor sodium piping
To promote the use scope of constant force spring device, and the work shape of constant force spring device can be understood more intuitively in spring arrangement
State.
Technical scheme is as follows: a kind of constant force spring device for fast reactor sodium piping, including spring cylinder group
Part, slewing frame component, bolt assembly, wherein spring is equipped in the spring cylinder assembly in the horizontal direction, in spring end
Spring pressure plate component is set, and spring pull rod is passed through from spring inner, and one end is fixed with spring pressure plate component center, and the other end is worn
It spring cylinder assembly and connect with slewing frame component, is additionally provided between the spring pressure plate component and spring cylinder assembly out
Guiding device；The slewing frame component includes a shell, and shell is fixedly connected with spring cylinder assembly, sets in the shell
There is rotation section, one end of rotation section is flexibly connected with spring pull rod, and the other end is connect with the bolt assembly being arranged along the vertical direction,
The rotation section can be rotated centered on main shaft in the lower part of the housing is arranged；It is equipped with arc port on the housing, in arc
Setting displacement label, displacement label are marked equipped with load at mouthful, and the clamping block connecting with rotation section passes through the arc on shell
Mouthful.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein the lower end of the bolt assembly
Connecting pipe.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein the guiding device setting
In the upper end of spring pressure plate component, the movement of spring pressure plate component is oriented in spring stress deformation, and there is position
The function of instruction.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein the slewing frame component
Main shaft both ends are equipped with instruction pin, and instruction pin is directed toward displacement label, rotates under the drive of main shaft.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein it is additionally provided with combined aural and visual alarm,
When the end left and right displacement of the instruction pin is excessive and marks close to load, combined aural and visual alarm issues alarm.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein the spring pull rod to include living
The other end of the horizon bar and rotating bar of dynamic connection, rotating bar is flexibly connected by shaft with the rotation section of slewing frame component.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein the level of the spring pull rod
Bar is set to spring cylinder component internal, and the rotating bar is disposed in the housing portion；The length of the horizon bar is longer than spring strut
The length of body component.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein wear on the clamping block
Rack gear is locked, to limit the movement of clamping block.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein be arranged in the case top
There are several platform slings.
Further, it is used for the constant force spring device of fast reactor sodium piping as described above, wherein also fixed on the housing
Connect nameplate.
Beneficial effects of the present invention are as follows: the present invention is transmitted by the pressure that the movement of spring pull rod generates compressed spring
Revolution frame assembly is given, pressure is passed to fast reactor sodium piping, to change pressure by the rotation of main shaft by slewing frame component
The direction of transfer of power, and then keep size and the direction of constant force；The present invention passes through setting instruction pin and the position with load label
Label is moved, state in which when can be directly observed the work of constant force spring device is shut down convenient for real-time detection and overload；This hair
It is bright by be arranged combined aural and visual alarm avoid personnel not when can not monitor the case where appearance；The present invention by by spring pull rod with turn
Dynamic portion's connection, it can be ensured that the direction of pull rod keeps horizontal when spring is pressurized, and avoids spring stress uneven, to further be promoted
Constant force spring device use scope.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the constant force spring device for fast reactor sodium piping of the invention；
Fig. 2 is the Section A-A schematic diagram of Fig. 1；
Fig. 3 is the partial schematic diagram at the displacement label position of constant force spring device of the invention；
Fig. 4 is the schematic diagram that constant force spring device of the invention is used for fast reactor sodium piping；
In figure: 1, spring cylinder cover plate assembly, 2, screw, 3, guiding device, 4, thin nut one, 5, nut one, 6, washer
One, 7, spring cylinder assembly, 8, spring pull rod, 9, spring, 10, slewing frame component, 11, nameplate, 12, rivet, 13, displacement mark
Board, 14, load label, 15, spring pressure plate component, 16, shaft, 17, bolt assembly, 18, thin nut two, 19, spend blue nut,
20, bolt one, 21, locking rack gear, 22, clamping block, 25, main shaft, 26, retaining ring, 27, washer three, 28, bearing, 29, bolt
Two, 30, washer four, 31, instruction pin.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawing.
As shown in Figs 1-4, the present invention provides a kind of constant force spring devices for fast reactor sodium piping, including spring pressure plate
Component 15, thin nut 1, nut 1, washer 1, spring cylinder assembly 7, spring pull rod 8, spring 9, slewing frame component
10, bolt assembly 17, thin nut 2 18, spend blue nut 19, main shaft 25, retaining ring 26, washer 3 27, bearing 28,2 29 and of bolt
Washer 4 30.Spring 9 and spring pressure plate component 15 are arranged inside spring cylinder assembly 7, spring pull rod 8 pass through spring 9 with
15 center of spring pressure plate component is additionally provided with guiding device 3, guiding dress between spring pressure plate component 15 and spring cylinder assembly 7
3 upper ends that spring pressure plate component 15 is set are set, the movement of spring pressure plate component 15 is led in spring stress deformation
To, and have the function of position instruction.
Spring pull rod 8 is fixed with thin nut 1, nut 1 and washer 1 in one end close to spring pressure plate component 15,
The right end of spring pull rod 8 is connect with slewing frame component 10, and 10 right front ends of slewing frame component and bolt assembly 17 are rotatablely connected,
17 lower end of bolt assembly is connected with thin nut 2 18 and Hua Lan nut 19 in turn, and 10 outer cup of slewing frame component is equipped with a shell
Body, shell are fixedly connected with spring cylinder assembly 7 by bolt 2 29 and washer 4 30.10 lower end of slewing frame component is equipped with
One main shaft 25, main shaft 25 are connect by bearing 28 with housing into rotation, and 25 both ends of main shaft are provided with retaining ring 26 and washer 3 27, with
Limitation main shaft 25 shifts when rotating.Rotation section, one end of rotation section and spring are equipped in the shell of slewing frame component 10
Pull rod 8 is flexibly connected, and the other end is connect with the bolt assembly 17 being arranged along the vertical direction, and the rotation section can be to be arranged in shell
It is rotated centered on the main shaft 25 of body lower part.
Further, as shown in Fig. 2, constant force spring device further includes that locking rack gear 21 and clamping block 22, clamping block 22 are worn
Cross the arc port on shell, locking rack gear 21 passes through clamping block 22 for the position restriction of clamping block in arc port.
Further, as shown in figure 3, constant force spring device further includes displacement label 13, the load being arranged at arc port
Label 14, bolt 1 and instruction pin 31, displacement label 13 are equipped with load label 14, and displacement label 13 passes through rivet and bolt
One 20 are fixed on shell and are located at the lower section of arc port, and instruction pin 31 is inserted on the outer diameter at 25 both ends of main shaft, and is directed toward position
Move label 13.
Further, constant force spring device is additionally provided with combined aural and visual alarm, when instruction 31 left and right displacement of pin is excessive and approaches
Combined aural and visual alarm issues alarm and alarm light when load label 15.
As the preferred embodiment of the present invention, the right end of spring pull rod 8 is also connected with a load adjustment bolt.
As the preferred embodiment of the present invention, constant force spring device further includes spring cylinder cover plate assembly 1 and screw 2,
Spring cylinder cover plate assembly 1 is fixedly connected on the left side of spring cylinder assembly 7 by screw 2.
As the preferred embodiment of the present invention, constant force spring device further includes nameplate 11 and rivet 12, and nameplate 11 passes through
Rivet 12 is fixedly connected on the upper right corner of shell.
As the preferred embodiment of the present invention, case top is additionally provided with several platform slings.
As the preferred embodiment of the present invention, spring pull rod 8 divides for horizon bar and rotating bar, the horizon bar and rotation
Bar rotation connection, the horizon bar are set to inside spring cylinder assembly 7, and the rotating bar is set in the housing portion.Rotating bar it is another
One end is rotatablely connected by the rotation section of shaft 16 and slewing frame component.
It is further preferred that the length of the horizon bar of spring pull rod 8 is longer than the length of spring cylinder assembly 7.
As shown in figure 4, being the schematic diagram that the present invention is applied to fast reactor sodium piping, centre is sodium valves, and two sides are respectively one
The lower part of constant force spring device, sodium valves and constant force spring device is all connected with pipeline.
In the material selection of constant force spring device, main body uses the alloy steel material of high temperature resistant material, and spring is resistance to height
The spring of warm material ensure that not influenced by the high temperature of sodium piping for constant force spring device, guarantee the stabilization of properties of product.
The working principle of the invention is: constant force spring device is separately positioned on to the left and right ends of sodium valves, sodium valves and constant force
The lower part of spring arrangement is connected by pipeline, and constant force spring device is under the load and displacement of license, load moment and spring force
Square remains balance.The fast reactor sodium valves piping supported with constant force spring device can be obtained constant when thermal walking occurs
Supporting force, because without bringing additional stress to fast reactor sodium valves piping；The displacement range of the constant force spring device of this secondary design
Wider, displacement range is 40mm~600mm, can preferably be suitable for the application of fast reactor sodium piping, meanwhile, constant force spring device
It has passed through the verifying of 5 times of overload tests, effectively guarantee can also there is certain constraint and support when fast reactor sodium piping has an accident
Effect.
The beneficial effects of the present invention are: the present invention is passed to the pressure that compressed spring generates by the movement of spring pull rod
Pressure is passed to fast reactor sodium piping, to change pressure by the rotation of main shaft by slewing frame component, slewing frame component
Direction of transfer, and then keep constant force size and direction；The present invention passes through setting instruction pin and the left side with load label
Right displacement label, state in which when can be directly observed the work of constant force spring device, shuts down convenient for real-time detection and overload；
The present invention by be arranged combined aural and visual alarm avoid personnel not when can not monitor the case where appearance；The present invention is by by spring pull rod
It is divided into horizontal part and rotation section, it can be ensured that the direction of pull rod keeps horizontal when spring is pressurized, and avoids spring stress uneven, thus
Further improve constant force spring device use scope.
The preferred embodiment of the present invention has shown and described in above description, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification and
Environment, and can be changed within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
It is dynamic.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be appended by the present invention
In scope of protection of the claims.
Claims (10)
1. a kind of constant force spring device for fast reactor sodium piping, including spring cylinder assembly (7), slewing frame component (10),
Bolt assembly (17), it is characterised in that: spring (9) are equipped in the horizontal direction in the spring cylinder assembly (7), in spring end
It is arranged spring pressure plate component (15), spring pull rod (8) is passed through from spring inner, and one end and spring pressure plate component (15) center are solid
Fixed, the other end is pierced by spring cylinder assembly (7) and connect with slewing frame component (10), the spring pressure plate component (15) and bullet
Guiding device (3) are additionally provided between spring cylinder assembly (7)；The slewing frame component (10) includes a shell, shell and bullet
Spring cylinder assembly is fixedly connected, and rotation section is equipped in the shell, and one end of rotation section is flexibly connected with spring pull rod (8),
The other end is connect with the bolt assembly (17) being arranged along the vertical direction, and the rotation section can be to be arranged main shaft in the lower part of the housing
(25) it is rotated centered on；It is equipped with arc port on the housing, setting displacement label (13) at arc port is displaced on label and sets
There is load to mark (14), the clamping block connecting with rotation section (22) passes through the arc port on shell.
2. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: the bolt assembly
(17) lower end connecting pipe.
3. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: the guiding device
(3) setting is oriented to the movement of spring pressure plate component in spring stress deformation in the upper end of spring pressure plate component (15),
And has the function of position instruction.
4. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: the slewing frame group
Main shaft (25) both ends of part are equipped with instruction pin (31), and instruction pin (31) is directed toward displacement label (13), rotates under the drive of main shaft.
5. being used for the constant force spring device of fast reactor sodium piping as claimed in claim 4, it is characterised in that: be additionally provided with sound-light alarm
Device, when the end left and right displacement of the instruction pin is excessive and marks close to load, combined aural and visual alarm issues alarm.
6. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: the spring pull rod
It (8) include the horizon bar being rotatablely connected and rotating bar, the other end of rotating bar passes through the rotation section of shaft and slewing frame component
It is flexibly connected.
7. being used for the constant force spring device of fast reactor sodium piping as claimed in claim 6, it is characterised in that: the spring pull rod
(8) horizon bar is set to spring cylinder assembly (7) inside, and the rotating bar is disposed in the housing portion；The length of the horizon bar
Degree is longer than the length of spring cylinder assembly (7).
8. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: in the clamping block
(22) locking rack gear (21) is worn on, to limit the movement of clamping block (22).
9. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: in the case top
It is provided with several platform slings.
10. being used for the constant force spring device of fast reactor sodium piping as described in claim 1, it is characterised in that: on the housing
Also it is fixedly connected with nameplate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480430.0A CN110230731A (en) | 2019-06-04 | 2019-06-04 | A kind of constant force spring device for fast reactor sodium piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480430.0A CN110230731A (en) | 2019-06-04 | 2019-06-04 | A kind of constant force spring device for fast reactor sodium piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110230731A true CN110230731A (en) | 2019-09-13 |
Family
ID=67859140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480430.0A Pending CN110230731A (en) | 2019-06-04 | 2019-06-04 | A kind of constant force spring device for fast reactor sodium piping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110230731A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB892296A (en) * | 1958-09-03 | 1962-03-28 | Grinnell Corp | Pipe hanger clamp stop |
| CN2217157Y (en) * | 1993-10-16 | 1996-01-10 | 张巧云 | Constant force butterfly supporting compensator |
| CN203115431U (en) * | 2013-02-28 | 2013-08-07 | 江苏大秦电气有限公司 | Constant-force spring hanging bracket |
| CN104344090A (en) * | 2013-08-10 | 2015-02-11 | 江苏焱鑫科技股份有限公司 | Flat constant-force spring hanger |
| CN206268624U (en) * | 2016-12-16 | 2017-06-20 | 山东佳能科技股份有限公司 | Limit-type constant-force spring hanger |
| CN210830792U (en) * | 2019-06-04 | 2020-06-23 | 中国原子能科学研究院 | Constant force spring device for fast reactor sodium piping system |
-
2019
- 2019-06-04 CN CN201910480430.0A patent/CN110230731A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB892296A (en) * | 1958-09-03 | 1962-03-28 | Grinnell Corp | Pipe hanger clamp stop |
| CN2217157Y (en) * | 1993-10-16 | 1996-01-10 | 张巧云 | Constant force butterfly supporting compensator |
| CN203115431U (en) * | 2013-02-28 | 2013-08-07 | 江苏大秦电气有限公司 | Constant-force spring hanging bracket |
| CN104344090A (en) * | 2013-08-10 | 2015-02-11 | 江苏焱鑫科技股份有限公司 | Flat constant-force spring hanger |
| CN206268624U (en) * | 2016-12-16 | 2017-06-20 | 山东佳能科技股份有限公司 | Limit-type constant-force spring hanger |
| CN210830792U (en) * | 2019-06-04 | 2020-06-23 | 中国原子能科学研究院 | Constant force spring device for fast reactor sodium piping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110230731A (en) | A kind of constant force spring device for fast reactor sodium piping | |
| CN203545499U (en) | Anti-rotating locating device of crane hook | |
| CN201422888Y (en) | Internal friction ring-based hydraulic locking mechanism for surgical robot joint | |
| CN207394811U (en) | Suspension apparatus | |
| CN206230531U (en) | Cylinder clamping self-locking linkage | |
| CN210817952U (en) | Novel portable laser marking machine arm | |
| CN205887661U (en) | Automatic backing roll balancing unit who rectifies | |
| CN104647021A (en) | Six-degree-of-freedom adjustment removal and installation tool for equipment removal and installation in narrow space | |
| CN202418130U (en) | Rapid connecting structure for rod member and base | |
| CN209139489U (en) | Finishing mill roll-bending cylinder quick replacing device | |
| CN204101309U (en) | The bindiny mechanism of motor and frame in a kind of hoist crane test unit | |
| CN208867084U (en) | A kind of bulb draws Ma seat and straight and horizontal adjusting rod bulb tool special for dismounting | |
| CN207331087U (en) | A kind of anodizing hanging device of master cylinder | |
| CN215402544U (en) | Special lifting appliance for balance beam | |
| CN209036012U (en) | A kind of nonstandard electromechanical equipment adjustable clamp | |
| CN205655910U (en) | Draw formula loading connecting device | |
| CN205521091U (en) | Bolt assembly and disassembly tools | |
| CN210307628U (en) | Special tool for disassembling bearing of transmission | |
| CN210830792U (en) | Constant force spring device for fast reactor sodium piping system | |
| CN205838336U (en) | A kind of suspension hook rotary positioning apparatus | |
| CN209067175U (en) | Locking device | |
| CN207456309U (en) | A kind of multipurpose measuring device of measurable guided missile barycenter | |
| CN207941978U (en) | A kind of bottom end rail balancing device of ultra-large type powder former | |
| CN108661984A (en) | A kind of two-stage double acting hydraulic cylinder with machine insurance limit function | |
| CN207580644U (en) | A kind of floating type adjustable caster device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |