CN202985464U - Clamp used for assembling and disassembling travelling wave tube magnetic system - Google Patents
Clamp used for assembling and disassembling travelling wave tube magnetic system Download PDFInfo
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- CN202985464U CN202985464U CN201220543617.4U CN201220543617U CN202985464U CN 202985464 U CN202985464 U CN 202985464U CN 201220543617 U CN201220543617 U CN 201220543617U CN 202985464 U CN202985464 U CN 202985464U
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- wave tubes
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Abstract
The utility model discloses a clamp used for assembling and disassembling a travelling wave tube magnetic system. The clamp is used for assembling and disassembling magnetic sheets of the travelling wave tube magnetic system. The clamp comprises a clamp head and a clamp seat, the clamp head comprises a front section, a middle section and a tail section, wherein the front section, the middle section and the tail section are connected in sequence, the front section of the clamp head is of a bifurcate slope type structure, the tail section of the clamp head is of a thread structure, and the middle section of the clamp head is of a stair-shaped double-layer rectangular structure. One end of the clamp seat is connected with the tail section in a threaded mode, and the other end of the clamp seat is of a cone-shaped disc type structure. The clamp used for assembling and disassembling the travelling wave tube magnetic system has the advantages of being convenient to operate and capable of improving pass percent of assembling and disassembling the magnetic sheets.
Description
Technical field
The utility model belongs in travelling-wave tubes the magnetic focusing system assembling or dismantles this technical field, specifically belongs to a kind of fixture that loads and unloads the travelling-wave tubes magnetic system.
Background technology
In microwave technical field, travelling-wave tubes is the best device with bandwidth and gain combination, its basic principle is that slow wave system provides a Propagation speed near electronic movement velocity and has the frequency electromagnetic waves of enough strong axial electric field, make electromagnetic wave and beam coupling that microwave signal is amplified, the microwave signal after finally being amplified.If high-velocity electron beam without any External Force Acting, will cause dispersing the interaction that can't carry out with frequency electromagnetic waves at the slow wave system internal motion.With regard to focusing system of needs, electron beam is focused on like this, keep the shape of electron beam.The focusing system that travelling-wave tubes is commonly used now is periodic perperiodic permanent magnet focusing, namely adopts permanent magnetic steel to add the form of pure iron pole shoe.
The magnetic focusing system of travelling-wave tubes is comprised of parts such as the pole shoe of some and magnetic sheets.Wherein pole shoe first has been fixed in the slow-wave structure of travelling-wave tubes, and magnetic sheet is circle ring, after the operation that magnetizes, magnet ring is cut in half, then be placed in the middle of two pole shoes, external application snap ring chucking forms one, all magnetic sheet assemblings are completed, and form magnetic focusing system.Wherein pole shoe is for first being welded in slow wave system, and two pole shoe gap design values all can be put into corresponding magnet ring, but the deviation of making due to technique, causes the part of magnet ring or part to be put to advance in the pole shoe gap.This is will carry out local repair under the magnetic sheet dismounting, then assembles.So the assembling process of magnetic focusing system is assembling and the unloading process of magnetic sheet.
In the assembling or unloading process of travelling-wave tubes magnetic sheet, magnetic sheet is two semi-circular structure, as shown in Figure 5, needs during use two chip architectures are formed full circle.In assembling or unloading process two semicircle magnetic sheets are because magnetic is repelled mutually, and will place in the middle of two pole shoes seam, and the pole shoe gap of travelling-wave tubes only has several millimeters sometimes, and the space is little and need apply external force, and manual operations is very inconvenient.Magnetic sheet is easily crisp simultaneously, and during operation, undue force can cause magnetic sheet broken, more difficult assembling after fragmentation.
The utility model content
Technical problem to be solved in the utility model is how to load and unload easily magnetic system, improves simultaneously the qualification rate of magnetic sheet in cargo handling process.The utility model provides a kind of fixture that loads and unloads the travelling-wave tubes magnetic system, and when assembling, fixture is against the both sides of two semicircle magnetic sheets, applies power to the centre, is easy to magnetic sheet is assembled into integral body; When dismounting, fixture props up the side of two semicircle magnetic sheets, and a chucking position is motionless, and an another fixture is progressively received power, and magnetic sheet very easily takes out because mutual repulsion outwards moves.
The utility model is to realize like this, a kind of fixture that loads and unloads the travelling-wave tubes magnetic system, it is used for the magnetic sheet of loading and unloading travelling-wave tubes magnetic system, it comprises dop and deck, this dop comprises leading portion, stage casing, the rear that connects successively, the leading portion of this dop is the bifurcated oblique facial structure, and the rear of this dop is helicitic texture, and the stage casing of this dop is stepped two-layer rectangular configuration; One end and this rear of this deck screw togather, and the other end of this deck is the taper disk structure.
As the further improvement of such scheme, this dop overall width is identical, and this leading portion is the top away from a side of this deck, and this top is planar structure, and this leading portion is rectangular into 5-10 °, cross section for becoming gradually large cone structure and cone angle from this top.
As the further improvement of such scheme, the thickness on this top be this magnetic sheet thickness 0.2-0.4 doubly, the conical surface length of this leading portion be 1.2-2 times of diameter of this magnetic sheet.
As the further improvement of such scheme, this leading portion offers the groove that this leading portion is formed bifurcation structure.
As the further improvement of such scheme, in the intersection employing chamfered of this top and this groove.
As the further improvement of such scheme, the angular range of this chamfering is 20-40 °, and the degree of depth of this chamfering is 3mm.
As the further improvement of such scheme, the groove width of this groove be this magnetic sheet diameter 0.2-0.3 doubly, the groove depth of this groove be 1-1.5 times of diameter of this magnetic sheet.
As the further improvement of such scheme, the two ends of the ground floor rectangular configuration in this stage casing connect respectively leading portion and rear, and second layer rectangular configuration one end in this stage casing connects rear, and the other end is free end.
As the further improvement of such scheme, the both sides that are the deck of taper disk structure all are cylindric, and the middle part is cone structure, near the body diameter of this dop one side less than the body diameter away from this dop one side.
Further improvement as such scheme is provided with annular knurl on the sidewall that on this deck, body diameter is larger.
The fixture of loading and unloading travelling-wave tubes magnetic system of the present utility model, easy to operate, improve the qualification rate of loading and unloading magnetic sheet.
Description of drawings
Fig. 1 is the structural representation of the fixture of the loading and unloading travelling-wave tubes magnetic system that provides of the utility model better embodiment;
Fig. 2 is the transversary schematic diagram of the dop of fixture in Fig. 1;
Fig. 3 is the vertical structure schematic diagram of the dop of fixture in Fig. 1;
Fig. 4 is the cross section structure schematic diagram of the deck of fixture in Fig. 1;
Fig. 5 is the structural representation of the magnetic sheet of the fixture in application drawing 1.
Main symbol description: deck 1, dop 2, rear 3, stage casing 4, leading portion 5, magnetic sheet 6, groove 7.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The fixture of loading and unloading travelling-wave tubes magnetic system of the present utility model comprises dop and deck (namely hereinafter base), and wherein, this dop comprises leading portion, stage casing, the rear that connects successively.Leading portion is the bifurcated oblique facial structure, and the stage casing is two-layer rectangular configuration, and tail end is helicitic texture; Base is the taper disk structure, and there is helicitic texture at the center.During use, base and dop are linked into an integrated entity.
The front end oblique facial structure of dop is mainly because the pole shoe gap is little, difficulty or ease operation hand-manipulated, and the loading and unloading of magnetic sheet simultaneously need to apply certain power on magnetic sheet.Cone structure can be put between pole shoe, and the conical surface that first adopts cone structure is clean with the eliminating impurities of pole shoe inside, then can apply power to magnetic sheet, convenient operation when loading and unloading.If do not apply power on magnetic sheet, will cause magnetic sheet due to the effect of mutual expelling force, the movement of out-of-order and direction, even splash, cause magnetic sheet impaired.
The leading portion bifurcation structure of dop is mainly when applying external force on circular magnetic sheet external diameter, increases contact area, better uses.Comprise fluting and chamfering structure, if adopt the plane formula leading portion, only for point contacts with face, be difficult to apply in its surface external force when contacting with circular magnetic sheet external diameter.After fluting, form two points on the external diameter direction, can well apply external force.Front end face is planar structure simultaneously, and two points that contact are become two lines, increases the power contact area.
The stage casing of dop and tail end structure, mainly for easy to operate, dop integral body is rectangular configuration simultaneously, is mainly that the direction that applies power is judged and uses.Base adopts disk structure, is mainly when applying external force, can hold in the side while bottom surface and be against position, the centre of the palm, is easy to apply power.
See also Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the fixture that uses with certain concrete cast is as example, and concrete implementation step is as follows.
As shown in Figure 5, the external diameter direction of magnetic sheet 6 is of a size of 22mm, and internal diameter is 10mm, and thickness is 2.6mm.
The leading portion 5 of dop 2 is the bifurcated oblique facial structure, and this leading portion 5 is the top away from a side of this base 1, and this top is planar structure, and thickness is generally 0.2-0.4 times of magnetic sheet 6 thickness, and that select in the present embodiment is 0.8mm.From the top backward for to become large cone structure gradually, the square-section, cone angle is 5-10 °, what select in the present embodiment is 5 °; Conical surface length be generally magnetic sheet 6 diameter 1.2-2 doubly, that select in the present embodiment is 32mm.
The stage casing 4 of dop 2 is two-layer rectangular configuration, and one of them rectangular configuration is connected connection with the taper leading portion, and thickness adopts the shape maximum ga(u)ge, and generally the cone angle by dop 2 determines, that choose in the present embodiment is 4.5mm; Length is 20-40mm, and physical length is 36mm here.The back rectangular configuration is easy to operate use, and length is generally 30-40mm, and that choose here is 35mm, and that thickness is that 6-8mm chooses here is 7mm.
The rear 3 of dop 2 is helicitic texture, is the standard thread, is used for connection function, select in the present embodiment for being the M6 standard thread, long is 12mm.Being characterized as of the bifurcation structure of its dop 2: fluted 7 form bifurcation structures with leading portion 5 in the middle of the top, as shown in Figure 3, the groove width of groove 7 be magnetic sheet 6 diameter 0.2-0.3 doubly, selecting here is 4.8mm; The groove depth of groove 7 be magnetic sheet 6 diameter 1-1.5 doubly, that select here is 30mm.Adopt chamfered on top and groove 7 intersections, chamfer angle is generally 20-40 °, and what select here is 30 °, and wherein the degree of depth of chamfering is 3mm.
Processing base 1, the taper disk structure, as shown in Figure 4, material is identical with dop 2.It is cylindric that the both sides of base 1 all are, and the middle part is cone structure, near the body diameter of these dop 2 one sides less than the body diameter away from these dop 2 one sides.The external diameter of small column (cylinder of the side that diameter is less) is 12mm, is highly 2mm; Then become cone structure, angle is 75 °, and the rear end is big column structure (cylinder of the side that diameter is larger), and the big column external diameter is 35-50mm, and that select here is 35mm, carries out annular knurl outside big column and processes, and rolls horizontal flower here, interval 0.5mm.In the taper disc centre, through hole shape helicitic texture is arranged, the helicitic texture of this helicitic texture and dop 2 is to coupling, the screw thread of screw thread M6.
After employing helicitic texture that dop 2 is connected with base connects, adopt laser weld to be welded into integral body with two kinds, form integral clamp, as shown in Figure 1.
The fixture of this loading and unloading travelling-wave tubes magnetic system is applicable to the assembling of magnetic sheet and dismounting in focusing system in travelling-wave tubes, especially is applied in the travelling-wave tubes of helix of miniaturization.When using this fixture, easy to operate, can improve the qualification rate of loading and unloading magnetic sheet.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. fixture that loads and unloads the travelling-wave tubes magnetic system, it is used for the magnetic sheet of loading and unloading travelling-wave tubes magnetic system, it is characterized in that: it comprises dop and deck, this dop comprises leading portion, stage casing, the rear that connects successively, the leading portion of this dop is the bifurcated oblique facial structure, the rear of this dop is helicitic texture, and the stage casing of this dop is stepped two-layer rectangular configuration; One end and this rear of this deck screw togather, and the other end of this deck is the taper disk structure.
2. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 1, it is characterized in that: this dop overall width is identical, this leading portion is the top away from a side of this deck, this top is planar structure, and this leading portion is rectangular into 5-10 °, cross section for becoming gradually large cone structure and cone angle from this top.
3. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 2 is characterized in that: the thickness on this top for the 0.2-0.4 of this magnetic sheet thickness doubly, the conical surface length of this leading portion be 1.2-2 times of diameter of this magnetic sheet.
4. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 2 is characterized in that: this leading portion offers the groove that this leading portion is formed bifurcation structure.
5. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 4, is characterized in that: in the intersection employing chamfered of this top and this groove.
6. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 5, it is characterized in that: the angular range of this chamfering is 20-40 °, the degree of depth of this chamfering is 3mm.
7. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 4 is characterized in that: the groove width of this groove for the 0.2-0.3 of the diameter of this magnetic sheet doubly, the groove depth of this groove be 1-1.5 times of diameter of this magnetic sheet.
8. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 1, it is characterized in that: the two ends of the ground floor rectangular configuration in this stage casing connect respectively leading portion and rear, and second layer rectangular configuration one end in this stage casing connects rear, and the other end is free end.
9. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 1, it is characterized in that: the both sides that are the deck of taper disk structure all are cylindric, and the middle part is cone structure, and the body diameter of close this dop one side is less than the body diameter away from this dop one side.
10. the fixture of loading and unloading travelling-wave tubes magnetic system as claimed in claim 9, is characterized in that: be provided with annular knurl on the sidewall that on this deck, body diameter is larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220543617.4U CN202985464U (en) | 2012-10-23 | 2012-10-23 | Clamp used for assembling and disassembling travelling wave tube magnetic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220543617.4U CN202985464U (en) | 2012-10-23 | 2012-10-23 | Clamp used for assembling and disassembling travelling wave tube magnetic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202985464U true CN202985464U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220543617.4U Expired - Fee Related CN202985464U (en) | 2012-10-23 | 2012-10-23 | Clamp used for assembling and disassembling travelling wave tube magnetic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202985464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942793A (en) * | 2018-08-10 | 2018-12-07 | 安徽华东光电技术研究所有限公司 | Magnetic sheet for coupled-cavity TWT magnetic system dismantles assembly tooling |
-
2012
- 2012-10-23 CN CN201220543617.4U patent/CN202985464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942793A (en) * | 2018-08-10 | 2018-12-07 | 安徽华东光电技术研究所有限公司 | Magnetic sheet for coupled-cavity TWT magnetic system dismantles assembly tooling |
| CN108942793B (en) * | 2018-08-10 | 2023-12-01 | 安徽华东光电技术研究所有限公司 | Magnetic sheet disassembly and assembly tool for coupling cavity traveling wave tube magnetic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20211023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |