CN213023591U - Adjust tensile regulation structure of multi-filament proportional room anode wire - Google Patents
Adjust tensile regulation structure of multi-filament proportional room anode wire Download PDFInfo
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- CN213023591U CN213023591U CN202022018404.7U CN202022018404U CN213023591U CN 213023591 U CN213023591 U CN 213023591U CN 202022018404 U CN202022018404 U CN 202022018404U CN 213023591 U CN213023591 U CN 213023591U
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Abstract
The utility model discloses an adjusting structure for adjusting the tension of an anode wire of a multi-wire proportional chamber, which comprises an insulating sleeve, a copper electrode, a spring and an adjusting mechanism; the connecting end of the copper pole extends into the insulating sleeve, and the connecting end of the copper pole is movably connected with the insulating sleeve through the adjusting mechanism; the connecting end of the copper pole is connected to the inner bottom of the insulating sleeve through the spring; the adjusting mechanism adjusts the length of the copper pole extending into the insulating sleeve. The utility model relates to an adjust tensile regulation structure of multi-filament direct ratio room positive pole silk for the positive pole silk of multi-filament direct ratio room is easily changed, and still can adjust the tension of positive pole silk during multi-filament direct ratio room use.
Description
Technical Field
The utility model relates to a nuclear technology is used and nuclear detector field, concretely relates to adjust tensile regulation structure of multi-filament proportional room anode wire.
Background
The multi-wire proportional chamber is a detector developed successfully by Charpak et al in the sixties of the last century. The detector has the characteristics of better time resolution capability, higher allowable counting rate, good spatial resolution, good energy resolution and the like, and can be designed into various shapes and sizes according to actual requirements, so the detector becomes a very important detector in high-energy physics and nuclear physics experiments, and is widely applied to the fields of medicine, astronomy, biology and the like.
The basic structure of the multi-wire proportional chamber is two cathode planes which are parallel to each other and an anode plane, wherein the anode plane is positioned between the two cathode planes and consists of a plurality of anode wires which are parallel to each other. When the multi-wire proportional chamber is in a working state, argon or other types of working gas is filled between the anode wire plane and the cathode plane, and electric high voltage is applied to the anode wire, so that a uniform electric field is formed between the anode wire plane and the cathode plane. When ray particles enter a sensitive area of the multi-filament proportional chamber, working gas molecules are ionized to generate electron-positive ion pairs, the electron-positive ion pairs drift towards two poles respectively under the action of an electric field, and finally an electric signal is generated and counting is generated in a subsequent electronics circuit.
The anode plane of the multi-wire proportional chamber is composed of anode wires, the number of the anode wires can be from several to hundreds according to different requirements of the size of the multi-wire proportional chamber or the space positioning accuracy, and in order to ensure the performance of the multi-wire proportional chamber, the tension born by all the anode wires should be as consistent as possible, so the fixing mode of the anode wires is an important problem for manufacturing the multi-wire proportional chamber. Usually, the anode wire is fixed by directly soldering or bonding conductive silver adhesive on the frame, and a weight is hung at one end of the anode wire before soldering or bonding to ensure the uniform tension of the anode wire. Although the fixing mode of the anode wire is simple, the anode wire is difficult to replace. Besides that, an anode wire fixed in this way will not be able to readjust the tension of the anode wire if the tension of the anode wire changes during use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that multi-filament proportional chamber anode wire is changed and is difficult and can't adjust anode wire tension among the prior art, aim at provides an adjust multi-filament proportional chamber anode wire tension's regulation structure, solves above-mentioned problem.
The utility model discloses a following technical scheme realizes:
an adjusting structure for adjusting the tension of an anode wire of a multi-wire proportional chamber comprises an insulating sleeve, a copper electrode, a spring and an adjusting mechanism; the connecting end of the copper pole extends into the insulating sleeve, and the connecting end of the copper pole is movably connected with the insulating sleeve through the adjusting mechanism;
the connecting end of the copper pole is connected to the inner bottom of the insulating sleeve through the spring; the adjusting mechanism adjusts the length of the copper pole extending into the insulating sleeve.
When the utility model is applied, the special requirements of the multi-wire proportional chamber on sealing and insulation are considered, so the copper electrode and the outside are isolated by the insulating sleeve, and the copper electrode is limited by the adjusting mechanism after extending into the insulating sleeve; when the adjusting mechanism compresses the copper pole, the copper pole can reduce the tension of the anode wire connected to the copper pole, and when the adjusting mechanism is loosened, the tension of the anode wire is improved due to the action of the spring on the copper pole, so that the tension of the anode wire is adjusted. Simultaneously because the utility model discloses in, adjustment mechanism can carry out position control for the copper pole relaxs the positive pole silk completely, thereby realizes the change to the positive pole silk, and the rethread adjustment mechanism relaxs the copper pole after the change is accomplished, makes the positive pole silk by taut, and carries out tension adjustment through adjustment mechanism. The utility model discloses make the positive pole silk of many proportional rooms easily to change to the tension of positive pole silk still can be adjusted during the use of many proportional rooms.
Furthermore, the adjusting mechanism comprises a pressing nut, an insulating block, an adjusting screw and a locking nut;
the abutting nut is arranged at the top end of the insulating sleeve, and the locking nut is arranged on the abutting nut; the adjusting screw penetrates through the abutting nut and the locking nut and is matched with the abutting nut through threads;
the insulating block is arranged at the end part of the adjusting screw and is in contact with the connecting end of the copper pole.
Furthermore, the locking nut can lock or loosen the abutting nut when rotating.
Further, the insulating block is arranged in the insulating sleeve.
Further, the device also comprises a base; the insulating sleeve is sleeved in the base, and the adjusting mechanism fixes the insulating sleeve in the base.
Furthermore, a first step structure is arranged on the inner wall of the base, and a second step structure matched with the first step structure is arranged on the outer wall of the insulating sleeve; the second step structure is matched with the abutting nut to install the insulating sleeve in the base.
Further, the device also comprises a rear cover; the rear cover is mounted on the base, and the adjusting mechanism is located in the rear cover.
Further, the device also comprises a sealing ring; the sealing ring is sleeved on the base.
Furthermore, the number of the sealing rings is two, one sealing ring is used for sealing the base and the multi-wire proportional chamber, and the other sealing ring is used for sealing the base and the rear cover.
Further, the adjusting screw is threaded by M3.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model relates to an adjust tensile regulation structure of multi-filament direct ratio room positive pole silk for the positive pole silk of multi-filament direct ratio room is easily changed, and still can adjust the tension of positive pole silk during multi-filament direct ratio room use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Reference numbers and corresponding part names in the drawings:
1-base, 2-back cover, 3-abutting nut, 4-insulating sleeve, 5-copper pole, 6-insulating block, 7-adjusting screw, 8-spring, 9-locking nut and 10-sealing ring.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
As shown in fig. 1, the utility model relates to an adjusting structure for adjusting the tension of an anode wire of a multi-wire proportional chamber, which comprises an insulating sleeve 4, a copper electrode 5, a spring 8 and an adjusting mechanism; the connecting end of the copper electrode 5 extends into the insulating sleeve 4, and the connecting end of the copper electrode 5 is movably connected to the insulating sleeve 4 through the adjusting mechanism;
the connecting end of the copper pole 5 is connected to the inner bottom of the insulating sleeve 4 through the spring 8; the adjusting mechanism adjusts the length of the copper pole 5 extending into the insulating sleeve 4.
When the embodiment is implemented, the special requirements of the multi-wire proportional chamber on sealing and insulation are considered, so the copper electrode and the outside of the utility model are isolated by the insulating sleeve, and the copper electrode is limited by the adjusting mechanism after extending into the insulating sleeve; when the adjusting mechanism compresses the copper pole, the copper pole can reduce the tension of the anode wire connected to the copper pole, and when the adjusting mechanism is loosened, the tension of the anode wire is improved due to the action of the spring on the copper pole, so that the tension of the anode wire is adjusted. Simultaneously because the utility model discloses in, adjustment mechanism can carry out position control for the copper pole relaxs the positive pole silk completely, thereby realizes the change to the positive pole silk, and the rethread adjustment mechanism relaxs the copper pole after the change is accomplished, makes the positive pole silk by taut, and carries out tension adjustment through adjustment mechanism. The utility model discloses make the positive pole silk of many proportional rooms easily to change to the tension of positive pole silk still can be adjusted during the use of many proportional rooms.
For further explaining the working process of the embodiment, the adjusting mechanism comprises a clamping nut 3, an insulating block 6, an adjusting screw 7 and a locking nut 9;
the abutting nut 3 is arranged at the top end of the insulating sleeve 4, and the locking nut 9 is arranged on the abutting nut 3; the adjusting screw 7 penetrates through the abutting nut 3 and the locking nut 9, and the adjusting screw 7 is matched with the abutting nut 3 through threads;
the insulation block 6 is arranged at the end part of the adjusting screw 7, and the insulation block 6 is contacted with the connecting end of the copper pole 5.
For further explanation of the working process of the present embodiment, the tightening nut 3 can be locked or loosened by rotating the lock nut 9.
For further explanation of the operation of the present embodiment, the insulation block 6 is disposed in the insulation sleeve 4.
For further explaining the working process of the embodiment, the device further comprises a base 1; the insulating sleeve 4 is sleeved in the base 1, and the adjusting mechanism fixes the insulating sleeve 4 in the base 1.
For further explaining the working process of the embodiment, the inner wall of the base 1 is provided with a first step structure, and the outer wall of the insulating sleeve 4 is provided with a second step structure matched with the first step structure; the second step structure is matched with the abutting nut 3 to install the insulating sleeve 4 in the base 1.
For further explaining the working process of the embodiment, the device further comprises a rear cover 2; the rear cover 2 is arranged on the base 1, and the adjusting mechanism is positioned in the rear cover 2.
For further explanation of the working process of the embodiment, the sealing ring 10 is further included; the sealing ring 10 is sleeved on the base 1.
To further illustrate the operation of this embodiment, the number of the sealing rings 10 is two, one sealing ring 10 is used for sealing the base 1 and the multi-wire proportional chamber, and the other sealing ring 10 is used for sealing the base 1 and the rear cover 2.
For further explanation of the working process of the present embodiment, the adjusting screw 7 is threaded with M3.
In order to further explain the working process of the embodiment, the technical problem to be solved by the embodiment is to provide an adjusting structure, called an adjusting terminal, for fixing the anode wire of the multi-wire proportional chamber and adjusting the tension of the anode wire. In addition to the function of adjusting the tension, the adjustment terminal needs to have an electrical insulation function, because when the multi-filament proportional chamber is in an operating state, a very large potential difference exists between the anode filament and the cathode, and the adjustment terminal is just between the anode filament and the cathode, so in order to ensure that an electric field is formed inside the multi-filament proportional chamber, the anode filament needs to have an electrical insulation function. In addition, no matter the air-flowing type multi-wire proportional chamber or the inflatable multi-wire proportional chamber, good sealing performance is generally required to be ensured, and the adjusting terminal belongs to a detachable part on the multi-wire proportional chamber, so that a corresponding structure is required to be arranged on the adjusting terminal to ensure the sealing performance of the adjusting terminal and a frame of the multi-wire proportional chamber.
In order to make the adjusting terminal have the three functions of adjusting, electrically insulating and sealing, the design scheme of the adjusting terminal is shown in fig. 1. The main structure of the adjusting terminal is a base which is used for connecting the adjusting terminal and a frame of the multi-wire proportional chamber and providing a mounting position for other structures of the adjusting terminal. The base is internally provided with a copper electrode, and the anode wire is welded on the copper electrode through a through hole at one end of the copper electrode, so that the anode wire is connected with the adjusting terminal.
Because the copper pole is connected with the anode wire, and the base is connected with the frame of the multi-wire proportional chamber (the frame of the multi-wire proportional chamber is generally used as a cathode), an insulating sleeve and an insulating block are designed between the copper pole and the base to realize the function of adjusting the electrical insulation of the terminal. The insulating sleeve and the insulating block are both made of polytetrafluoroethylene which is a material with excellent insulating property, so that the insulation of the anode wire and the cathode can be ensured.
In order to realize the function of adjusting the tension of the anode wire by the adjusting terminal, a spring is designed between the copper electrode and the insulating sleeve, and an adjusting screw for adjusting the relative position of the copper electrode is designed on the outer side of the insulating block. The adjustment process is realized by the following steps: the spring between the insulating sleeve and the copper pole is in a compressed state, one end of the spring leans against the rear part of the copper pole, and the other end of the spring leans against the front part of the insulating sleeve, so that the copper pole has a tendency of moving backwards. The adjusting screw is matched with the abutting nut through threads, the front end of the adjusting screw abuts against the insulating block, and meanwhile the front end of the adjusting screw also indirectly abuts against the copper pole, so that the tendency that the copper pole moves backwards is prevented. Therefore, when the adjusting screw moves forwards, the copper pole can be pushed to move forwards; when the adjusting screw moves backwards, the copper pole can move backwards along with the adjusting screw due to the existence of the spring, and therefore the purpose of adjustment is achieved. After the adjusting process is finished, the adjusting screw can be fixed through the locking nut, and the situation that the tightness degree of the anode wire is influenced by the position movement of the adjusting screw in the use process of the multi-wire proportional chamber is avoided.
The sealing problem of the adjustment terminal is relatively simple with respect to the adjustment problem. The sealing performance of the adjusting terminal is mainly realized by pressing an O-shaped sealing ring. O-shaped sealing rings are designed between the base and the frame of the multi-wire proportional chamber and between the base and the rear cover, so that the sealing performance of the adjusting terminal is realized.
To further illustrate the working process of the present embodiment, in the present embodiment:
as shown in fig. 1, the main body of the adjusting terminal is a base, and can be divided into three parts, namely a front part, a middle part and a rear part. The front end has a diameter of 10mm and is provided with a thread which connects the adjusting terminal with the frame of the multi-wire proportional chamber. The diameter phi of the middle part is 17mm, 4 counter bores are uniformly distributed in the middle part, and an L-shaped wrench can be used for inserting the counter bores, so that the adjusting terminal can be conveniently screwed into a frame of the multi-wire proportional chamber. The rear part has a diameter of 12mm and is also provided with a thread which connects the rear cover of the adjustment terminal with the base.
The inside of the base is of a cylindrical through hole structure, and a stepped structure exists, and the stepped structure and the abutting nut together fix the insulating sleeve inside the adjusting terminal. The copper pole and the insulating block are arranged in the insulating sleeve. The front end of the copper electrode is provided with a through hole which is processed obliquely and is used for penetrating the anode wire and welding the anode wire through soldering tin. Because the copper electrode is connected with the anode wire, the copper electrode is in a high-voltage state when the multi-wire proportional chamber works. The insulating sleeve and the insulating block are both made of polytetrafluoroethylene materials, and the insulating sleeve and the insulating block wrap the copper electrode, so that the electric insulation of the anode and the cathode can be realized by utilizing the excellent insulating property of the polytetrafluoroethylene materials.
The adjustment function is the most complex problem of adjusting the terminals. Because the anode wire is extremely fine, the adjusting process must be very slow, and the anode wire cannot rotate and bend, otherwise, the anode wire is easy to cause poor working performance, even fracture and the like. In order to make the adjustment process slow, the adjustment screw uses the thread of M3, which has a small pitch, which makes the adjustment process very slow. Meanwhile, in order to avoid the rotation of the anode wire in the adjusting process, the front end of the insulating sleeve is provided with a square notch and matched with the front end of the copper electrode which is also square, so that the rotation problem of the anode wire in the adjusting process can be effectively avoided.
It is apparent that the working gas may escape outside the multi-wire proportional chamber primarily by leaking through the gap between the conditioning terminal and the frame or by leaking internally within the conditioning terminal. An O-shaped sealing ring is arranged between the base and the frame and is tightly pressed through connecting threads of the base and the frame, so that working gas cannot leak through a gap between the adjusting terminal and the frame. Similarly, an O-shaped sealing ring is arranged between the base and the rear cover and is pressed through the connecting threads of the base and the rear cover, so that working gas cannot leak through the inner part of the adjusting terminal.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An adjusting structure for adjusting the tension of an anode wire of a multi-wire proportional chamber is characterized by comprising an insulating sleeve (4), a copper electrode (5), a spring (8) and an adjusting mechanism; the connecting end of the copper pole (5) extends into the insulating sleeve (4), and the connecting end of the copper pole (5) is movably connected to the insulating sleeve (4) through the adjusting mechanism;
the connecting end of the copper pole (5) is connected to the inner bottom of the insulating sleeve (4) through the spring (8); the adjusting mechanism adjusts the length of the copper pole (5) extending into the insulating sleeve (4).
2. The adjusting structure for adjusting the tension of the anode wire of the multi-wire proportional chamber according to claim 1, wherein the adjusting mechanism comprises a tightening nut (3), an insulating block (6), an adjusting screw (7) and a locking nut (9);
the abutting nut (3) is arranged at the top end of the insulating sleeve (4), and the locking nut (9) is arranged on the abutting nut (3); the adjusting screw (7) penetrates through the abutting nut (3) and the locking nut (9), and the adjusting screw (7) is matched with the abutting nut (3) through threads;
the insulating block (6) is arranged at the end part of the adjusting screw (7), and the insulating block (6) is contacted with the connecting end of the copper pole (5).
3. An adjustment structure for adjusting tension of an anode wire in a multi-wire proportional chamber according to claim 2, wherein the tightening nut (3) is locked or released by rotating the locking nut (9).
4. An adjustment structure for adjusting the tension of an anode wire in a multi-wire proportional chamber according to claim 2, characterized in that the insulation block (6) is arranged in the insulation sleeve (4).
5. The adjusting structure for adjusting the tension of an anode wire in a multi-wire proportional chamber according to claim 2, further comprising a base (1); the insulating sleeve (4) is sleeved in the base (1), and the adjusting mechanism fixes the insulating sleeve (4) in the base (1).
6. The adjusting structure for adjusting the tension of the anode wire of the multi-wire proportional chamber according to claim 5, wherein a first step structure is arranged on the inner wall of the base (1), and a second step structure matched with the first step structure is arranged on the outer wall of the insulating sleeve (4); the second step structure is matched with the abutting nut (3) to install the insulating sleeve (4) in the base (1).
7. The adjusting structure for adjusting the tension of the anode wire of the multi-wire proportional chamber according to claim 5, further comprising a rear cover (2); the rear cover (2) is arranged on the base (1), and the adjusting mechanism is positioned in the rear cover (2).
8. The adjusting structure for adjusting the tension of an anode wire in a multi-wire proportional chamber according to claim 7, further comprising a sealing ring (10); the sealing ring (10) is sleeved on the base (1).
9. The adjusting structure for adjusting the tension of an anode wire in a multi-wire proportional chamber according to claim 8, wherein the number of the sealing rings (10) is two, one sealing ring (10) is used for sealing the base (1) and the multi-wire proportional chamber, and the other sealing ring (10) is used for sealing the base (1) and the rear cover (2).
10. An adjustment structure for adjusting the tension of a multi-wire proportional chamber anode wire according to claim 2, characterized in that the adjustment screw (7) is threaded with M3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018404.7U CN213023591U (en) | 2020-09-15 | 2020-09-15 | Adjust tensile regulation structure of multi-filament proportional room anode wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018404.7U CN213023591U (en) | 2020-09-15 | 2020-09-15 | Adjust tensile regulation structure of multi-filament proportional room anode wire |
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| Publication Number | Publication Date |
|---|---|
| CN213023591U true CN213023591U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022018404.7U Active CN213023591U (en) | 2020-09-15 | 2020-09-15 | Adjust tensile regulation structure of multi-filament proportional room anode wire |
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| Country | Link |
|---|---|
| CN (1) | CN213023591U (en) |
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- 2020-09-15 CN CN202022018404.7U patent/CN213023591U/en active Active
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