CN107448530B - A kind of tail springs device of rotary drum vacuum valve door - Google Patents
A kind of tail springs device of rotary drum vacuum valve door Download PDFInfo
- Publication number
- CN107448530B CN107448530B CN201610373431.1A CN201610373431A CN107448530B CN 107448530 B CN107448530 B CN 107448530B CN 201610373431 A CN201610373431 A CN 201610373431A CN 107448530 B CN107448530 B CN 107448530B
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- China
- Prior art keywords
- spring
- worm shaft
- assembly
- sleeve assembly
- nut
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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.)
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention belongs to the hex systems in uranium enrichment field, and in particular to the tail springs device applied on one of system rotary drum vacuum valve door.Sleeve assembly is connected in external system by the tail springs device by bolt, including worm shaft, nut assembly, spring assembly and sleeve assembly；When valve switch movement, motor drives worm shaft rotation, and by the effect of sleeve assembly U-type groove, nut assembly linear slide to spring base and compressed spring, suffered power is transmitted to pedestal by spring, then power is applied on worm shaft by half washer；The reaction force that spring-compressed generates hinders the rotation of worm shaft, increases the frictional force of worm shaft, to reduce the torque that worm shaft is transmitted.The compressing force of spring is by worm bearing by or else sleeve assembly bears elastic force, improve the service life of sleeve and the reliability of valve in the tail springs device.
Description
Technical field
The invention belongs to the hex systems in uranium enrichment field, and in particular on one of system rotary drum vacuum valve door
The tail springs device of application.
Background technique
Rotary drum vacuum valve door is the important equipment in uranium enrichment system.The characteristics of such valve closing motion is driving mechanism
It stops rotating after driving core assembly to be rotated by 90 °, then the closing disk in core assembly is pushed to keep straight on to valve port, realize that channel is close
Envelope.When core assembly is rotated by 90 ° under the drive of main shaft, core assembly hits thrust head, stops rotating；Main shaft continues to rotate
When, the closing disk in core assembly is kept straight under the track of cam, finally compresses sealing surface.It is hitting thrust head and is compressing sealing
During face, impact can be all generated, the effect of tail springs device is exactly to reduce impact, reduces valve vibration, reduces sealing
The damage in face.
In original tail springs apparatus structure, spring assembly is coupled by trapezoidal thread with worm shaft, when worm screw rotates
When, spring assembly linear motion, when the bottom plate of the base contacts cover cylinder on spring assembly, spring starts to compress, and generates spring
Counter-force increases the frictional force of worm screw rotation, the speed of mainshaft is reduced, to reduce valve impact.But when spring-compressed, mainly cover
The bottom slab stress of cylinder, the weld seam stress more precisely at bottom plate, such structure is brought certain to the reliability of valve
Hidden danger, with the increase of valve opening number, commissure is easily damaged.
Therefore, the tail springs device for needing the reduction valve impact of development of new, to improve the reliability of valve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tail springs devices of novel reduction valve impact, to have
Effect improves the stress problem of sleeve assembly.
In order to realize the purpose, the technical solution adopted by the present invention is that
A kind of tail springs device of rotary drum vacuum valve door, including worm shaft, nut assembly, spring assembly and sleeve group
Part；
Nut assembly is made of nut and sliding block, and sliding block is L-type plate, passes through screw in the length direction of sliding block and nut will
The threaded portion of worm shaft tail portion is connect with sliding block, and sliding block is stuck in its height direction in the U-type groove of sleeve assembly, with limitation
The rotary motion of nut assembly；
When worm shaft rotation, nut assembly does not follow worm screw to rotate together, but sliding along the axis direction of worm shaft
It is dynamic, while along the U-type groove linear slide of sleeve assembly；
Spring assembly is made of spring base, half washer, pedestal, and spring base and pedestal are located at both ends of the spring, wherein spring, bullet
Spring abutment and pedestal cover on worm shaft, and half washer is stuck in the aft mounted groove of worm shaft and directly contacts with pedestal；When
When spring is compressed by external force, external force acts on spring base first, and external force is uniformly passed to spring, spring by spring base
External force is transmitted on pedestal again, is acted on external force on worm shaft by half washer by the conduct the relation of above-mentioned power；
The outermost layer of tail springs device is the sleeve assembly of cylinder-like structure, is provided with U-type groove on cylinder, on nut assembly
Sliding block slided in above-mentioned U-type groove；Sleeve assembly covers entire tail springs, protects the safe and dust-proof of running part；
When valve switch movement, motor drives worm shaft rotation, passes through the effect of sleeve assembly U-type groove, nut assembly
For linear slide to spring base and compressed spring, suffered power is transmitted to pedestal by spring, then power is applied to snail by half washer
On bar axis；The reaction force that spring-compressed generates hinders the rotation of worm shaft, increases the frictional force of worm shaft, to reduce worm screw
The torque that axis is transmitted.
Further, a kind of tail springs device of rotary drum vacuum valve door as described above, by bolt by sleeve assembly
It is connected in external system.
Further, a kind of tail springs device of rotary drum vacuum valve door as described above, the screw thread of worm shaft tail portion are
Trapezium structure.
The beneficial effect of technical solution of the present invention is: the compressing force of spring is by worm bearing in the tail springs device
By or else sleeve assembly bears elastic force, improve the service life of sleeve and the reliability of valve.
Detailed description of the invention
Fig. 1 is tail springs apparatus structure schematic diagram of the invention.
In figure: 1- nut assembly, 2- sleeve assembly, 3- spring base, 4- spring, 5- worm shaft, 6- pedestal, half washer of 7-.
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of tail springs device of rotary drum vacuum valve door of the present invention, is connected sleeve assembly by bolt
Into external system, including worm shaft, nut assembly, spring assembly and sleeve assembly；
Nut assembly is made of nut and sliding block, and sliding block is L-type plate, passes through screw in the length direction of sliding block and nut will
The trapezoidal thread part of worm shaft tail portion is connect with sliding block, and sliding block is stuck in its height direction in the U-type groove of sleeve assembly, with
Limit the rotary motion of nut assembly；
When worm shaft rotation, nut assembly does not follow worm screw to rotate together, but sliding along the axis direction of worm shaft
It is dynamic, while along the U-type groove linear slide of sleeve assembly；
Spring assembly is made of spring base, half washer, pedestal, and spring base and pedestal are located at both ends of the spring, wherein spring, bullet
Spring abutment and pedestal cover on worm shaft, and half washer is stuck in the aft mounted groove of worm shaft and directly contacts with pedestal；When
When spring is compressed by external force, external force acts on spring base first, and external force is uniformly passed to spring, spring by spring base
External force is transmitted on pedestal again, is acted on external force on worm shaft by half washer by the conduct the relation of above-mentioned power；
The outermost layer of tail springs device is sleeve assembly, sleeve assembly be it is columnar structured, U-type groove is provided on cylinder,
Sliding block on nut assembly slides in above-mentioned U-type groove；Sleeve assembly covers entire tail springs, protects the peace of running part
It is complete and dust-proof；
When valve switch movement, motor drives worm shaft rotation, passes through the effect of sleeve assembly U-type groove, nut assembly
For linear slide to spring base and compressed spring, suffered power is transmitted to pedestal by spring, then power is applied to snail by half washer
On bar axis；The reaction force that spring-compressed generates hinders the rotation of worm shaft, increases the frictional force of worm shaft, to reduce worm screw
The torque that axis is transmitted.
The frame mode as the improvement structure of heavy caliber rotary drum vacuum valve door passed through valve formal dress, upside-down mounting, side dress
Each 500 valve opening and closing action tests can be effectively reduced the impact of valve from the point of view of field test, and valve runs smoothly, thorough
Bottom solves the problems, such as the stress of sleeve assembly, can reduce the impact of valve while guaranteeing valve seal, improve valve fortune
Capable reliability.
Claims (3)
1. a kind of tail springs device of rotary drum vacuum valve door, including worm shaft, nut assembly, spring assembly and sleeve assembly；
Nut assembly is made of nut and sliding block, and sliding block is L-type plate, passes through screw and nut for worm screw in the length direction of sliding block
The threaded portion of axis tail portion is connect with sliding block, and sliding block is stuck in its height direction in the U-type groove of sleeve assembly, to limit nut
The rotary motion of component；
When worm shaft rotation, nut assembly does not follow worm screw to rotate together, but slides along the axis direction of worm shaft, together
When along sleeve assembly U-type groove linear slide；
Spring assembly is made of spring base, half washer, pedestal, and spring base and pedestal are located at both ends of the spring, wherein spring, spring base
It is covered on worm shaft with pedestal, half washer is stuck in the aft mounted groove of worm shaft and directly contacts with pedestal；Work as spring
When being compressed by external force, external force acts on spring base first, external force is uniformly passed to spring by spring base, spring again will
External force is transmitted on pedestal, is acted on external force on worm shaft by half washer by the conduct the relation of above-mentioned power；
The outermost layer of tail springs device is the sleeve assembly of cylinder-like structure, and U-type groove, the cunning on nut assembly are provided on cylinder
Block slides in above-mentioned U-type groove；Sleeve assembly covers entire tail springs, protects the safe and dust-proof of running part；
It is characterized by:
When valve switch movement, motor drives worm shaft rotation, passes through the effect of sleeve assembly U-type groove, nut assembly straight line
Spring base and compressed spring are slided into, suffered power is transmitted to pedestal by spring, then power is applied to worm shaft by half washer
On；The reaction force that spring-compressed generates hinders the rotation of worm shaft, increases the frictional force of worm shaft, to reduce worm shaft institute
The torque of transmitting.
2. a kind of tail springs device of rotary drum vacuum valve door as described in claim 1, it is characterised in that: will be covered by bolt
Cartridge module is connected in external system.
3. a kind of tail springs device of rotary drum vacuum valve door as claimed in claim 2, it is characterised in that: worm shaft tail portion
Screw thread is trapezium structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373431.1A CN107448530B (en) | 2016-05-31 | 2016-05-31 | A kind of tail springs device of rotary drum vacuum valve door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373431.1A CN107448530B (en) | 2016-05-31 | 2016-05-31 | A kind of tail springs device of rotary drum vacuum valve door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448530A CN107448530A (en) | 2017-12-08 |
| CN107448530B true CN107448530B (en) | 2019-05-17 |
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ID=60484723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373431.1A Active CN107448530B (en) | 2016-05-31 | 2016-05-31 | A kind of tail springs device of rotary drum vacuum valve door |
Country Status (1)
| Country | Link |
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| CN (1) | CN107448530B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765197B (en) * | 2020-06-18 | 2021-07-16 | 常州大学 | Shock-resistant large-damping vibration isolator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201636433U (en) * | 2009-12-11 | 2010-11-17 | 中核新能核工业工程有限责任公司 | Nuclear electric rotating-drum vacuum valve |
| CN103994232A (en) * | 2014-05-12 | 2014-08-20 | 东北大学 | Wide-range precision vacuum leak valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4106762A1 (en) * | 1991-03-04 | 1992-09-10 | Leybold Ag | VALVE, PREFERABLY VACUUM VALVE |
-
2016
- 2016-05-31 CN CN201610373431.1A patent/CN107448530B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201636433U (en) * | 2009-12-11 | 2010-11-17 | 中核新能核工业工程有限责任公司 | Nuclear electric rotating-drum vacuum valve |
| CN103994232A (en) * | 2014-05-12 | 2014-08-20 | 东北大学 | Wide-range precision vacuum leak valve |
Non-Patent Citations (2)
| Title |
|---|
| 电动转筒真空阀性能分析及其优化设计;王志敏;《阀门》;20071225(第6期);第29-33页 |
| 降低转筒真空阀启闭冲击的研究;刘洋;《中国核科学技术进展报告（第四卷）》;20150930;第522-525段 |
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| Publication number | Publication date |
|---|---|
| CN107448530A (en) | 2017-12-08 |
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