CN205603119U - Realize lift stop gear of high vacuum isolation - Google Patents
Realize lift stop gear of high vacuum isolation Download PDFInfo
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- CN205603119U CN205603119U CN201620250905.9U CN201620250905U CN205603119U CN 205603119 U CN205603119 U CN 205603119U CN 201620250905 U CN201620250905 U CN 201620250905U CN 205603119 U CN205603119 U CN 205603119U
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Abstract
The utility model discloses a realize lift stop gear of high vacuum isolation, including the vacuum cavity, the vertical fixed guide that is equipped with in the vacuum cavity, fixed guide is last to be equipped with, two lower stoppers, the vacuum cavity outside is equipped with power equipment, power equipment connects the power equipment power, the power equipment power is connected with power equipment control cabinet, power equipment passes through wire rope and connects the lift bar, the lift bar stretches into under to the vacuum cavity in from last, the lower extreme of lift bar is equipped with waits to promote the object, it is equipped with to wait to promote one side that the object is close to fixed guide, two lower limit switch, two limit switch's control scheme is connected to the power equipment control cabinet who is located outside the vacuum cavity through the aviation connector who installs on the vacuum cavity. The utility model discloses can realize the high vacuum effectively and keep apart that accurately realize reciprocating spacing, and use equipment is simple and convenient reliable, has overcome a series of problems that the transition of inside and outside high vacuum brought.
Description
Technical field
This utility model relates to a kind of lifting position-limit mechanism, is specifically related to a kind of lifting position-limit mechanism realizing fine vacuum isolation.
Background technology
At present, promoting object has a various ways: or utilize worm-and-wheel gear, or utilizes the shelf structure that spreads out, also or fixed pulley or movable pulley mechanism.But to being in lifting and the location of fine vacuum inside cavity part, the outer wall that vacuum leak, interior fine vacuum are destroyed, interior fine vacuum is brought need to be overcome to coagulate the series of problems such as water even icing, existing common hoisting mechanism is difficult to solve an above-mentioned difficult problem.
Utility model content
Lifting and accurate limit problem for fine vacuum chamber intrabody object, this utility model provides a kind of lifting position-limit mechanism realizing fine vacuum isolation, it is spacing that this device can not only realize the accurately lifting to fine vacuum chamber intrabody object, and can overcome the series of problems that inside and outside fine vacuum transition brings.
For realizing the purpose of this utility model, concrete technical scheme is as follows:
A kind of lifting position-limit mechanism realizing fine vacuum isolation, it is characterized in that: include vacuum cavity, fixing guide rail vertically it is provided with in vacuum cavity, fixing guide rail is provided with, lower two limited blocks, power-equipment it is provided with outside vacuum cavity, power-equipment connects power-equipment power supply, power-equipment power supply controls rack with power-equipment and is connected, power-equipment connects lifting arm by steel wire rope, lifting arm stretches in vacuum cavity from top to bottom, the lower end of lifting arm is provided with object to be hoisted, object to be hoisted is provided with near the side of fixing guide rail, lower two limit switches, the power-equipment that the control circuit of two limit switches is connected to be positioned at outside vacuum cavity by the Aviation Connector being arranged on vacuum cavity controls rack.
The described lifting position-limit mechanism realizing fine vacuum isolation, it is characterised in that: side, described lifting arm lower middle is welded with corrugated tube, and corrugated tube outer wall is in high vacuum environment, inwall is in atmospheric environment, and the corrugated tube other end is welded on vacuum chamber cavity.
The described lifting position-limit mechanism realizing fine vacuum isolation, it is characterised in that: the flexible stroke of described corrugated tube is at least object up-down required separation distance to be hoisted.
The described lifting position-limit mechanism realizing fine vacuum isolation, it is characterized in that: in described corrugated tube, be provided with nitrogen supply air line, nitrogen supply air line one end extend into the cavity bottom that corrugated tube inwall is formed, it is full of nitrogen at room in ensureing cavity, preventing corrugated tube outside wall surface temperature from making water vapor condensed water in inwall even freeze less than dew point temperature, the nitrogen supply air line other end connects source nitrogen.
The described lifting position-limit mechanism realizing fine vacuum isolation, it is characterised in that: described power-equipment utilizes steel wire rope to drive the object to be hoisted on the lifting arm being attached thereto to move up and down.
The described lifting position-limit mechanism realizing fine vacuum isolation, it is characterized in that: when described object to be hoisted moves up and down, limited block touches limit switch, the contact signal of limit switch is connected with power-equipment control rack by controlling circuit, and then described power-equipment power supply is controlled, by realizing the start and stop of power-equipment, it is achieved object lifting operation in vacuum cavity and accurate limit.
Operation principle of the present utility model is:
This utility model utilizes power-equipment to realize the lifting of vacuum cavity internal objects, corrugated tube is utilized to carry out fine vacuum isolation, and in the cavity of corrugated tube, it is filled with nitrogen at room, nitrogen supply air line extend into the cavity bottom that corrugated tube inwall is formed, and utilizes the start and stop of the signal feedback control power-equipment of limit switch to realize accurate limit；Power-equipment drives the object uniform speed slow on lifting arm to move by steel wire rope, when object to be hoisted arrive upper and lower spacing time, corrugated tube is compressed or is stretched to limiting condition, limit switch touches the limited block startup contact being fixed within vacuum cavity, it is simultaneously emitted by contact signal, the circuit that controls at contact signal place controls in rack by the power-equipment that the Aviation Connector installed on vacuum cavity is delivered to outside vacuum chamber, realize the control to power-equipment exactly, disconnect power-equipment power supply, thus it is the most spacing in vacuum cavity to realize object.
Compared with prior art, the beneficial effects of the utility model are:
1, by power-equipment and to control terminal external in atmospheric environment for this utility model, can the external world be atmospheric pressure, internal for fine vacuum under conditions of reliably use, do not affect high vacuum environment, make operation and control precise and stable.
2, in the cavity that the corrugated tube of vacuum insulation is formed, it is passed through nitrogen at room carry out protection and can effectively alleviate the outer wall that interior fine vacuum brings and coagulate the problem that water even freezes, improves the service life of corrugated tube.
3, Aviation Connector is utilized to realize fine vacuum and connecting of controlling circuit in external environment condition, it is simple to dismounting, convenient and reliable.
4, utilize the start and stop of the signal feedback control power-equipment of limit switch, make spacing relatively reliable accurately.
Accompanying drawing explanation
Structural representation when Fig. 1 is to move to upper limit on this utility model elevating mechanism.
Fig. 2 is this utility model elevating mechanism structural representation when reaching lower limit.
Label in figure: 1. vacuum cavity, 2. power-equipment, 3. power-equipment power supply, object the most to be hoisted, 5. source nitrogen and supply air line, 6. lifting arm, 7. corrugated tube, 8. limit switch and control circuit thereof, 9. limited block, 10. Aviation Connector, 11. power-equipments control rack, 12. steel wire ropes.
Detailed description of the invention
Below by specific embodiment and combine accompanying drawing 1-2 this utility model is described in detail.
As shown in Figure 1, 2, a kind of lifting position-limit mechanism realizing fine vacuum isolation, rack 11, limited block 9, limit switch and control circuit 8 thereof is controlled including lifting arm 6, corrugated tube 7, source nitrogen and supply air line 5, power-equipment 2, power-equipment, lifting arm 6 one end hangs object 4 to be hoisted, the other end is connected by steel wire rope 12 and power-equipment 2, and side, lifting arm 6 lower middle is welded with corrugated tube 7；Corrugated tube 7 is for vacuum insulation; outer wall is in high vacuum environment; inwall is in atmospheric environment; corrugated tube 7 other end is welded on vacuum cavity 1; thus realize the vacuum insulation outside object 4 to be hoisted and lifting arm 6; being passed through nitrogen at room protected by source nitrogen and supply air line 5 in the cavity that corrugated tube 7 inwall is formed, the compression travel of corrugated tube 7 is at least object up-down required separation distance；Nitrogen supply air line need to extend into the cavity bottom that corrugated tube 7 inwall is formed, it is ensured that is full of nitrogen at room in cavity, persistently provides nitrogen at room in source nitrogen；It is outside that power-equipment 2 is fixed on vacuum cavity 1, and it is flexible coupling by steel wire rope 12 between lifting arm 6, power-equipment 2 drives steel wire rope 12 to rotate and then pulls object 4 to be hoisted on lifting arm 6 to run, and the startup of power-equipment 2 and stopping connect power-equipment control rack 11 by control line and be controlled；Position limiting structure is divided into limit switch 8 and is fixed on the limited block 9 inside vacuum cavity 1, limited block 9 is fixed on, at lower limit, limit switch 8 is fixed on object 4 to be hoisted, the circuit that controls connected on limit switch 8 is connected with Aviation Connector 10 fixing on vacuum cavity 1, the Aviation Connector 10 other end in atmospheric environment is connected on power-equipment control rack 11 by measuring line, three constitutes a complete signal measurement feedback control loop, at the limited block 9 arriving defined position, touch limit switch 8, the operation of power-equipment 2 is controlled by the chain feedback system residing for limit switch 8, thus accurately realize object lifting operation in vacuum cavity 1 and accurate limit.
In FIG, source nitrogen and supply air line 5 continue nitrogen injection in corrugated tube 7 cavity and protect it, power-equipment 2 drives object to be hoisted 4 uniform speed slow on lifting arm 6 to move to upper limit by steel wire rope 12, when object arrives upper limit position, corrugated tube 7 is compressed to minimum operating mode, limit switch 8 touches and is fixed on the limited block 9 within vacuum cavity 1 and starts contact, it is simultaneously emitted by contact signal, the circuit that controls at contact signal place controls in rack 11 by the power-equipment that the Aviation Connector 10 installed on vacuum cavity 1 is delivered to outside vacuum cavity 1, realize the control to power-equipment 2 exactly, disconnect power-equipment power supply 3, thus realize object accurate limit in vacuum cavity 1.
In fig. 2, source nitrogen and supply air line 5 continue nitrogen injection in corrugated tube 7 cavity and protect it, and power-equipment 8 drives the object to be hoisted 4 on lifting arm 6 to move from upper limit uniform speed slow ground restraining position downwards by steel wire rope 12.Turning on the power while device power supply (DPS) 3, limit switch 8 leaves limited block 9, and contact reverts to normal condition.When object arrives lower position, corrugated tube 7 is stretched to maximum duty, limit switch 8 touches the lower limit limited block 9 being fixed in vacuum cavity 1 thus starts contact, it is simultaneously emitted by contact signal, the circuit that controls at contact signal place controls in rack 11 by the power-equipment that the Aviation Connector 10 installed on vacuum cavity 1 is delivered to outside vacuum cavity 1, realize the control to power-equipment 2 exactly, disconnect power-equipment power supply 3, thus realize object accurate limit in vacuum cavity 1.
In sum, a kind of lifting structure realizing fine vacuum isolation of this utility model, it is possible to preferably realize the lifting to fine vacuum chamber intrabody object and accurate limit, overcome the series of problems that inside and outside fine vacuum transition brings.This utility model effectively overcomes practical problems more of the prior art, has the highest value and Practical significance.
The merely exemplary explanation of above-mentioned embodiment principle of the present utility model and effect thereof, not for limiting this utility model.This utility model also has a lot of name of a young woman can improve on the premise of overall thought, all can be under spirit and the scope of the present utility model for those skilled in the art, above-described embodiment is modified or changes, therefore, art has all equivalence modification or changes that usually intellectual is completed under without departing from the spirit disclosed in this utility model and technological thought such as, must be contained by claim of the present utility model.
Claims (6)
1. the lifting position-limit mechanism realizing fine vacuum isolation, it is characterized in that: include vacuum cavity, fixing guide rail vertically it is provided with in vacuum cavity, fixing guide rail is provided with, lower two limited blocks, power-equipment it is provided with outside vacuum cavity, power-equipment connects power-equipment power supply, power-equipment power supply controls rack with power-equipment and is connected, power-equipment connects lifting arm by steel wire rope, lifting arm stretches in vacuum cavity from top to bottom, the lower end of lifting arm is provided with object to be hoisted, object to be hoisted is provided with near the side of fixing guide rail, lower two limit switches, the power-equipment that the control circuit of two limit switches is connected to be positioned at outside vacuum cavity by the Aviation Connector being arranged on vacuum cavity controls rack.
The lifting position-limit mechanism realizing fine vacuum isolation the most according to claim 1, it is characterized in that: side, described lifting arm lower middle is welded with corrugated tube, corrugated tube outer wall is in high vacuum environment, inwall is in atmospheric environment, and the corrugated tube other end is welded on vacuum chamber cavity.
The lifting position-limit mechanism realizing fine vacuum isolation the most according to claim 2, it is characterised in that: the flexible stroke of described corrugated tube is at least object up-down required separation distance to be hoisted.
4. according to the lifting position-limit mechanism realizing fine vacuum isolation described in Claims 2 or 3, it is characterized in that: in described corrugated tube, be provided with nitrogen supply air line, nitrogen supply air line one end extend into the cavity bottom that corrugated tube inwall is formed, and the nitrogen supply air line other end connects source nitrogen.
The lifting position-limit mechanism realizing fine vacuum isolation the most according to claim 1, it is characterised in that: described power-equipment utilizes steel wire rope to drive the object to be hoisted on the lifting arm being attached thereto to move up and down.
Realize the lifting position-limit mechanism of fine vacuum isolation the most according to claim 1 or 5, it is characterized in that: when described object to be hoisted moves up and down, limited block touches limit switch, the contact signal of limit switch is connected with power-equipment control rack by controlling circuit, and then described power-equipment power supply is controlled, by realizing the start and stop of power-equipment, it is achieved object lifting operation in vacuum cavity and accurate limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620250905.9U CN205603119U (en) | 2016-03-24 | 2016-03-24 | Realize lift stop gear of high vacuum isolation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620250905.9U CN205603119U (en) | 2016-03-24 | 2016-03-24 | Realize lift stop gear of high vacuum isolation |
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| CN205603119U true CN205603119U (en) | 2016-09-28 |
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| CN201620250905.9U Active CN205603119U (en) | 2016-03-24 | 2016-03-24 | Realize lift stop gear of high vacuum isolation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967084A (en) * | 2016-03-24 | 2016-09-28 | 中国科学院等离子体物理研究所 | Lifting limiting mechanism capable of achieving high vacuum isolation |
| CN108529467A (en) * | 2017-03-03 | 2018-09-14 | 古德里奇公司 | The rescue lifting drum bellows system of sealing |
-
2016
- 2016-03-24 CN CN201620250905.9U patent/CN205603119U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105967084A (en) * | 2016-03-24 | 2016-09-28 | 中国科学院等离子体物理研究所 | Lifting limiting mechanism capable of achieving high vacuum isolation |
| CN108529467A (en) * | 2017-03-03 | 2018-09-14 | 古德里奇公司 | The rescue lifting drum bellows system of sealing |
| CN108529467B (en) * | 2017-03-03 | 2020-10-23 | 古德里奇公司 | Sealed rescue lifting machine reel bellows system |
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