JP7116505B2 - Sample environment equipment for easy conversion of the product under test - Google Patents

Description

The present invention relates to the field of scattered neutron sources, and more particularly to sample environment equipment that facilitates transformation of the product under test.

Overall, the principles of the China Spallation Neutron Source (CSNS) can be summarized as follows. (1) A proton accelerator is used to generate a proton beam with a high beam intensity and a short pulse. (2) A proton beam is used to bombard a heavy metal target to generate high flux, short pulse neutrons. (3) By arranging a plurality of spectroscopes around the target station and measuring the signal generated when the neutron pulse strikes the sample, information on the structure of the sample material is obtained. Among them, the sample environment demonstration machine is an indispensable component, which is used to provide a special and constant environment for the sample in the neutron scattering experiment, making the sample a specific stage or state. During experiments, it is necessary to change the product to be measured, but in order to prevent radiation, the product is always taken out, transferred, and then converted. The environment is severely damaged, especially the temperature environment is severely damaged, causing heat to dissipate, and there is a problem that the next time the experiment is performed, it will take more time to reconstruct the temperature environment.

An object of the present invention is to provide a sample environment facility that facilitates conversion of a product to be measured. Only by separating the mechanism from the cylinder and the lower mechanism, the conversion of the lower mechanism can be realized, and the conversion can be performed very quickly, without severely destroying the environment of the sample tube, and the temperature environment can be rebuilt in a short time. can be reduced.

In order to achieve the above objects, the technical solution used in the present invention is as follows. A sample environment equipment for easily transforming a product to be measured, which comprises a base and a lifting device, a lifting cylinder is disposed under the lifting device, and a lifting bracket is connected to the bottom of the lifting cylinder. an upper mechanism is connected to the elevating bracket, the upper mechanism includes an upper plate and a downward pressing device, and an elevating connection block is disposed on the upper plate to lockably connect with the elevating bracket via a bolt; , a conversion motor is embedded in the base, the output shaft of the conversion motor is covered with a conversion rotary sleeve, the conversion rotary sleeve is evenly arranged with four conversion connecting rods along a ring, and a conversion table is connected to two conversion connection rods with a phase difference of 180°C; a lower mechanism is disposed on the conversion table; the lower mechanism includes a lower plate and a material feeder attached to the lower plate; A clamping device is provided, a cylinder is arranged between a lower mechanism and an upper mechanism located in the test section, the lower plate, the cylinder and the upper plate constitute a removable sample tube, and the lower plate and the upper plate In addition, an annular insertion block that can be inserted into the wall of the cylinder is fixedly arranged, the side surface of the cylinder is provided with a through hole, and the upper outer side of the cylinder is screwed through A removable screw is associated and the end of the removable screw is a smooth rod and is insertable into an annular insert block located on the underside of the upper plate.

Preferably, the base is arranged with conversion position limiting blocks that are tangentially linked with four conversion stages along the rotation direction, and the outer ends of the two conversion connecting rods are provided with axially facing conversion distance measurement equipment is placed.

Preferably, the material pressing device includes a downward pressing bracket disposed on an upper plate, an electric telescopic rod directed vertically is disposed on the downward pressing bracket, and the electric telescopic rod extends through the upper plate. and a downward pushing rod is connected in sealing communication with the upper plate, a downward pushing block is connected under the downward pushing rod, and a downward pushing clamping gas bag is arranged under the downward pushing block. , the downward pressing clamping gas bladder is connected to a pneumatic device, a vacuum pump is disposed on the upper plate, and the vacuum pump communicates with the lumen of the sample tube.

Preferably, the electric telescopic rod is connected to the downward pushing rod through a coupling made of hard plastic, the downward pushing block is embedded with a downward pushing electromagnet, and the downward pushing block is made of hard plastic. A downward pressing sleeve is disposed at the lower end of the downward pressing rod so as to cover and cooperate with the downward pressing electromagnet, and the downward pressing sleeve is magnetically linked with the downward pressing electromagnet.

Preferably, a screw thread is arranged on the outer side of the coupling, and two downward-pressing clamping cylinders are arranged in the downward-pressing bracket, the cylinder heads facing each other and facing the horizontal direction, and the downward-pressing A downward pressing clamping arcuate block is connected to the push rod of the clamping cylinder, and an inner thread is disposed inside the downward pressing clamping arcuate block, and the inner thread cooperates with a thread disposed on the outer side of the coupling. do.

Preferably, the upper plate is provided with a wire-passing tube penetrating therethrough, a wire-passing sealing sleeve is hermetically attached to the lower part of the wire-passing tube, and the wire-passing sealing sleeve , the air tube and the wire tube made of rigid material are fixedly connected, and the other ends of the air tube and the wire tube are both fixed to the downward pressing block, and the wire of the downward pressing electromagnet passes through the wire tube. and passing through the wire passage tube, the air tube of the downward pressing clamping gas bladder communicates with an air tube, and the air tube communicates with a ventilation hose passing through the wire passage tube, said ventilation hose comprising: It communicates with the air pump in the gas bladder located on the downward pressing bracket.

Preferably, the material feeding clamping device comprises a clamping lifting bracket disposed under the lower plate, a clamping lifting ball screw is threadedly connected to the clamping lifting bracket, and a clamping lifting nut is attached to the clamping lifting ball screw. , the upper end of the clamping lifting ball screw passes through the lower plate and is connected to the clamping lifting platform, the clamping part is disposed on the clamping lifting platform, and the lifting sealing sleeve is under the clamping lifting platform. Disposed, the lift sealing sleeve is in relatively movable and sealing engagement with the lower plate, and the clamping lift ball screw is within the lift sealing sleeve.

Preferably, the clamping unit includes clamping mounting blocks arranged on a clamping lifting platform, the clamping mounting blocks are arranged in a vertical direction, and at least three or more are arranged, and the clamping mounting blocks are arranged in a horizontal direction. A facing clamping screw is disposed, a clamping lock nut is associated with the clamping screw, and a clamping block associated with the product is connected to the clamping screw.

FIG. 4 is a diagram showing the structure of a sample environment facility that facilitates conversion of the product under test; FIG. 2 is a cross-sectional view taken along line DD in FIG. 1; FIG. 4 is a diagram showing the structure of a sample environment section; It is a figure which shows the structure of a lower mechanism. It is a figure which shows the structure of a downward pressing apparatus. 6 is a partially enlarged view of a portion A in FIG. 5. FIG. 6 is a partially enlarged view of a portion B in FIG. 5. FIG. 4 is a partially enlarged view of a portion C in FIG. 3. FIG.

For those skilled in the art to better understand the technical solutions of the present invention, the present invention will now be described in detail in conjunction with the drawings. The description in this part is only demonstrative and interpretative, and does not limit the protection scope of the present invention in any way.

As shown in FIGS. 1 and 3, the specific structure of the present invention is as follows. A sample environment equipment for easy conversion of the product to be measured, which comprises a base 55 and an elevating movable device 51. Under the elevating movable device 51 is an elevating cylinder 52. A lifting bracket 53 is connected to the lifting bracket 53, and an upper mechanism is connected to the lifting bracket 53. The upper mechanism comprises an upper plate 3 and a downward pressing device 7. The upper plate 3 is locked with the lifting bracket 53 via bolts. a conversion motor 56 is embedded in the base 55; the output shaft of the conversion motor 56 is covered with a conversion rotary sleeve 57; Four conversion connecting rods 58 are evenly arranged along the , among which two conversion connecting rods 58 with a phase difference of 180 ° C are connected to a conversion base 59 , and the conversion base 59 is connected to a lower mechanism 60 is arranged, the lower mechanism comprises a lower plate 1 and a material feeding clamping device attached to the lower plate 1, the cylindrical body 2 is arranged between the lower mechanism 60 and the upper mechanism located in the test section, The lower plate 1, the cylinder 2 and the upper plate 3 form a removable sample tube, and the lower plate 1 and the upper plate 3 are provided with an annular insertion block 4 which can be inserted into the wall of the cylinder 2. A through hole 5 is provided in the side surface of the cylindrical body 2, and a removable screw 10 is connected to the upper outer side of the cylindrical body 2 through a screw thread. The end of 10 is a smooth rod and can be inserted into an annular insert block 4 located below the upper plate 3 .

When specifically used, first, the product to be measured 9 is attached to the material supply clamping device 6 of one of the lower mechanisms 60, and then the conversion motor 56 rotates the conversion rotating sleeve 57 by 180 ° C. After the lower mechanism 60 to which the product 9 is attached is positioned below the cylindrical body 2, the lifting bracket 53 is lowered by the lifting cylinder 52, and the entire connecting portion composed of the upper mechanism and the cylindrical body 2 is further lowered. , the cylindrical body 2 and the annular insertion block 4 in the lower plate 1 are linked, further completing the assembly of the whole sample tube. Next, a vacuum environment and a constant temperature environment are constructed in the sample tube by the parts arranged on the cylindrical body 2 and the upper plate 3, and then the proton emitter is used to emit fast protons, which are emitted from the through hole 5 ( The through-hole is usually set in a material that is easily penetrated by protons. For example, if you use an aluminum plate, it will not affect the vacuum environment). The bombardment of the target with neutrons is completed by generating a high, short-pulsed proton beam that diverges into a spectrometer placed in the sample tube. At the same time as conducting the neutron scattering experiment, the next product to be measured 9 is attached to the material supply clamping device 6 of the other lower mechanism 60, and after the neutron scattering experiment is completed, the lifting bracket 53 is lifted by the lifting cylinder, Furthermore, after the entire upper mechanism and the barrel 2 are separated from the lower mechanism 60, another lower mechanism 60 is transferred to the lower side of the barrel 2 by the conversion motor, and after completing the assembly of the sample tube, the specific environment and converted in a short time, so less air is drawn into the vacuum environment and less heat is dissipated from the constant temperature environment, reducing the environment reconstruction time.

As shown in FIG. 2, a conversion position limiting block 61 is arranged on the base 55 so as to be in contact with the four conversion bases 59 along the rotation direction, and two conversion connecting rods 58 are provided at the outer ends of the conversion connecting rods 58. , an axially oriented transformation rangefinder 62 is arranged.

By installing the conversion distance measuring device 62, when converting, the conversion distance measuring device 62 can detect the distance between it and the conversion position limiting block 61, and further based on the distance, the rotation of the conversion motor When judging and detecting whether the range is correct, the position can be determined and the translation position limit block 61 can be used to limit the rotation of the translation table.

As shown in FIGS. 3 and 5, the material pressing device 7 comprises a downward pressing bracket 21 arranged on the upper plate, and the downward pressing bracket 21 is arranged with an electric telescopic rod 22 facing up and down. The electric telescopic rod 22 is connected with a downward pushing rod 23 that passes through the upper plate 3 and is connected to the upper plate 3 so as to be sealed, and a downward pushing block 25 is connected to the lower side of the downward pushing rod 23, A downward pressing clamping gas bag 27 is disposed under the downward pressing block 25, the downward pressing clamping gas bag 27 is connected to a pneumatic device, a vacuum pump 8 is disposed on the upper plate 3, and A vacuum pump 8 communicates with the lumen of the sample tube.

The downward pressing rod 23 is lowered by the electric telescopic rod 22, and the downward pressing block 25 is further lowered to contact the upper end of the product 9, and then the downward pressing clamping gas bag 27 is inflated by the pneumatic device. Then, the upper part of the product 9 is further tightened to limit the position, thereby avoiding the situation where the product 9 is detached while the downward pressing block 25 is pressing downward. Then control the amount of expansion and contraction of the electric telescopic rod 22, that is, the product 9 to achieve the required compressive stress, during this process, the vacuum pump 8 is driven, the sample tube is evacuated, and the downward pushing rod is The diameter does not need to be larger than the entire downward pushing block, thus reducing the overall size of the downward pushing rod, making it easier to seal, no need to extract product from the sample rod, and not interfere with other parts. It adopts the method of removing the whole upper plate, so that it can be better combined with the lifting and lowering moving device. If the tensile stress is designed, it is only necessary to set the lower side of the downward pressing block to the clamping part.

5 and 6, the electric telescopic rod 22 is connected to the downward pressing rod 23 through a coupling 28 made of hard plastic, and the downward pressing block 25 is embedded with a downward pressing electromagnet 26. The material of the downward pressing block is hard plastic, and a downward pressing sleeve 24 is disposed at the lower end of the downward pressing rod 23 so as to cover and cooperate with the downward pressing electromagnet 26. The downward pressing sleeve 24 is , is magnetically associated with the downward pressing electromagnet 26 .

A downward pressing sleeve 24 is disposed at the lower end of the downward pressing rod 23, and is linked to the downward pressing electromagnet so as to cover it. It can be separated from the pressing block and can be easily removed as a whole, and by removing the coupling 28, the electric telescopic rod can be separated from the downward pressing rod 23, and further dismantling and maintenance of the whole can be easily performed. .

As shown in FIG. 6, two downward pressing clamping cylinders 29, which are threaded on the outside of the coupling 28 and arranged in the downward pressing bracket 21 with their cylinder heads facing the horizontal direction, are arranged. The push rod of the downward pressure clamping cylinder 29 is connected to a downward pressure clamping circular arc block 30, and an inner screw is disposed inside the downward pressure clamping circular arc block 30, and the internal screw is coupled to the coupling. 28 externally arranged screw threads.

After the electric telescopic rod reaches the required telescopic amount, it should be locked. The existing operation sets the electric telescopic rod to the self-locking structure, but the structure is extremely complicated. In contrast, in the present invention, the thread is arranged on the outer side of the coupling 28, and the downward pressing clamping cylinder 29 is used to move the downward pressing clamping arc block 30, so that the downward pressing clamping arc block 30 is further internally threaded. in conjunction with threads located on the outside of the coupling 28, the electric telescopic rod can be locked. Compared to the auto-locking structure of the electric telescopic rod, the structure is simpler, and even if the electric telescopic rod 22 and the downward pressing rod 23 are removed, the coupling 28 can be tightened. The electric telescopic rod 22 and the coupling 28 can be removed simply by contracting the electric telescopic rod. Also, it is possible to prevent the lower part of the coupling 28 from falling.

As shown in FIGS. 5 and 7, the upper plate 3 is provided with a conductor passage tube 31 penetrating therethrough, and a conductor passage sealing sleeve 32 is placed below the conductor passage tube 31 so as to be sealed. An air tube 33 and a wire tube 34 made of rigid material are fixedly connected to the sheathed and wire-passing sealing sleeve 32, and the other ends of the air tube 33 and the wire tube 34 are both pressed downward. The wire of the downward pressing electromagnet 26 fixed to the block 25 passes through the wire tube 34 and passes through the wire passing tube 31, the air tube of the downward pressing clamping gas bag 27 communicates with the air tube 33, and The air tube 33 communicates with a ventilation hose 35 passing through the wire passage tube 31 , said ventilation hose 35 communicating with a gas bladder air pump 37 located on the downward pressing bracket 21 .

The air pipe of the downward pressing clamping gas bag 27 and the conducting wire of the downward pressing electromagnet 26 must pass through the upper plate, so if the design is not good, the vacuum environment is likely to be destroyed. In the present invention, the wire passage tube 31 is designed and combined with the wire passage sealing sleeve 32 to achieve sealing, and the wire passage sealing sleeve 32 is made of rigid material through the air pipe 33 and the wire pipe 34. , by connecting with the downward pressing block 24, the conductor passing sealing sleeve 32 is connected to the conducting wire passing pipe 31 so as to be sealed and covered, and serves as a guide to some extent when the downward pressing block 24 descends. In addition to maintaining an excellent vacuum environment, interference does not occur during the removal process.

As shown in FIG. 4, the material feeding/clamping device 6 includes a clamping/elevating bracket 11 disposed below the lower plate 1, a clamping/elevating ball screw 12 is threadedly connected to the clamping/elevating bracket 11, and A clamping elevating nut 13 is connected to the clamping elevating ball screw 12, and the upper end of the clamping elevating ball screw 12 passes through the lower plate 1 and is connected to the clamping elevating table 14. and a lifting sealing sleeve 15 is disposed under the clamping lifting platform 14, the lifting sealing sleeve 15 is relatively movable and sealingly linked with the lower plate 1, and the clamping lifting ball screw is 12 in a lift sealing sleeve 15;

Due to the structure of the material supply clamping device 6, the rotation of the clamping lifting ball screw 12 realizes the lifting of the clamping lifting table 14, and also the lifting of the clamping part and the parts clamped by it, which can be easily adjusted. . Further, by arranging the elevating sealing sleeve 15, while maintaining the sealing performance of the lower plate 1 during elevating, it does not affect the elevating of the clamping elevating table 14, but instead serves as a guide.

As shown in FIG. 4, the clamping unit comprises a clamping mounting block 16 arranged on a clamping lifting platform 14, the clamping mounting blocks 16 are arranged in the vertical direction, and at least three or more are arranged so that the clamping A horizontally oriented clamping screw 17 is disposed on the mounting block 16, a clamping lock nut 19 is connected to the clamping screw 17, and the clamping screw 17 is connected to a clamping block 18 which is linked to the product.

Concrete operations of the holding portion are as follows. After placing the product 9 in the center of the clamping mounting block 16, the clamping screw 17 is used to move the clamping block 18, and the clamping block 18 clamps the product 9. By locking, the clamping work is completed and the operation is simple. In addition, by arranging three or more clamping mounting blocks 16, support can be provided at three or more locations, so it is possible to clamp products with different specifications.

When the present invention is actually applied, each drive component can be controlled by a dedicated control system, or the control system can be combined with buttons.

It should be understood that, as used herein, the terminology "include", "include" or any other variation is meant to encompass non-exclusive inclusion. Thus, a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not specifically listed, or is a process, method, article or apparatus of this type. It also contains unique elements.

Although the principles and modes of implementation of the present invention have been described herein with the application of specific individual cases, the above description of examples is only used to assist in understanding the method of the present invention and its basic concept. The above is only the preferred implementation of the present invention, and it should be noted that due to the limitation of the character representation, there are objectively infinite specific structures, and those skilled in the art will not understand the principle of the present invention. Certain further improvements, modifications or changes may be implemented without departing from the above, and the above technical features may be combined in an appropriate manner. Any of these improvements and modifications, variations or combinations, or direct application of the inventive concept and technical solutions to other cases without improvement, should be regarded as the protection scope of the present invention.

1, lower plate; 2, cylindrical body; 3, upper plate; 4, annular insertion block; 5, through hole; 6, material supply clamping device; 7, material pressing device; Removable screw; 11, clamping lifting bracket; 12, clamping lifting ball screw; 13, clamping lifting nut; 14, clamping lifting platform; 15, lifting sealing sleeve; 16, clamping mounting block; Block; 19, clamping lock nut; 21, downward pressing bracket; 22, electric telescopic rod; 23, downward pressing rod; 24, downward pressing sleeve; 25, downward pressing block; 26, downward pressing electromagnet; Bladder; 28, Coupling; 29, Downward pressing clamping cylinder; 30, Downward pressing clamping arc-shaped block; 31, Conductor passage tube; 32, Conductor passage sealing sleeve; 33, Air tube; 34, Conductor tube; Ventilation hose; 36, Conductor; 37, Gas bladder air pump; 51, Lifting mover; 52, Lifting cylinder; 53, Lifting bracket; 54, Lifting connecting block; 55, Base; Sleeve; 58, conversion connecting rod; 59, conversion base; 60, lower mechanism; 61, conversion position limit block; 62, conversion distance measuring device

Claims (5)

A sample environment facility amenable to transforming a product to be measured, comprising a base (55) and a lifting/lowering mover (51),
An elevating cylinder (52) is disposed below the elevating movable device (51), an elevating bracket (53) is connected to the lower side of the elevating cylinder (52), and an upper mechanism is attached to the elevating bracket (53). said upper mechanism comprising an upper plate (3) and a downward pressing device (7), said upper plate (3) being in locking engagement with a lifting bracket (53) via a bolt; A block (54) is arranged, a conversion motor (56) is embedded in the base (55), a conversion rotation sleeve (57) is mounted on the output shaft of the conversion motor (56), and the conversion rotation sleeve ( 57), four conversion connecting rods (58) are evenly arranged along the ring, among which two conversion connecting rods (58) with a phase difference of 180 degrees are connected to the conversion base (59). A lower mechanism (60) is disposed on the conversion table (59) connected thereto, the lower mechanism includes a lower plate (1) and a material feeding clamping device attached to the lower plate (1), and a test section A cylinder (2) is arranged between a lower mechanism (60) and an upper mechanism located in the lower plate (1), the cylinder (2) and the upper plate (3) constitute a removable sample tube. and also fixedly arranged on the lower plate (1) and the upper plate (3) is an annular insertion block (4) which can be inserted into the wall of the tube (2), said tube (2) A through hole (5) is provided on the side surface of the cylinder (2), a removable screw (10) is connected to the upper outer side of the cylindrical body (2) via a screw thread, and the end of the removable screw (10) The sample environment equipment is easy to transform the product to be measured, characterized in that the part is a smooth rod and can be inserted into the annular insertion block (4) located under the upper plate (3) . A conversion position limiting block (61) is disposed on the base (55) so as to be in contact with the four conversion bases (59) along the rotation direction, and the outer ends of the two conversion connection rods (58) are arranged. , an axially facing conversion distance measuring device (62) is disposed, said material pressing device (7) comprises a downward pressing bracket (21) disposed on the upper plate, said downward pressing bracket (21) comprising: A motorized telescopic rod (22) facing up and down is arranged, said motorized telescopic rod (22) having a downward pressing rod (23) passing through the upper plate (3) and sealingly communicating with the upper plate (3). ) are connected to each other, a downward pressing block (25) is connected to the lower side of the downward pressing rod (23), and a downward pressing clamping gas bag (27) is arranged to the lower side of the downward pressing block (25). , the downward pressing and clamping gas bladder (27) is connected to a pneumatic device, the upper plate (3) is provided with a vacuum pump (8), and the vacuum pump (8) communicates with the lumen of the sample tube; The sample environment equipment for easy conversion of the product under test according to claim 1, characterized in that: The electric telescopic rod (22) is connected to the downward pressing rod (23) through a hard plastic coupling (28), and the downward pressing block (25) is embedded with a downward pressing electromagnet (26). The downward pressing block is made of hard plastic, and a downward pressing sleeve (24) is disposed at the lower end of the downward pressing rod (23) so as to cover the downward pressing electromagnet (26), and , the downward pressing sleeve (24) is magnetically associated with the downward pressing electromagnet (26) and is threaded on the outside of said coupling (28) and is horizontally oriented to said downward pressing bracket (21). Two downward pressing cylinders (29) are arranged with their cylinder heads facing each other, and a downward pressing arcuate block (30) is connected to the push rod of the downward pressing cylinder (29). , and an inner thread is arranged inside the downward pressing clamping arcuate block (30), said inner thread cooperating with a screw thread arranged on the outside of the coupling (28). A sample environment facility that facilitates conversion of the product under test described. The upper plate (3) is provided with a conductor passage tube (31) penetrating therethrough, and a conductor passage sealing sleeve (32) is sealed to the lower portion of the conductor passage tube (31). and an air tube (33) made of rigid material and a wire tube (34) are fixedly connected to the wire passage sealing sleeve (32), and the air tube (33) and the wire tube (34) are fixedly connected to each other. The other end is fixed to the downward pressing block (25), and the wire of the downward pressing electromagnet (26) passes through the wire tube (34) and through the wire passage tube (31) to downwardly press and tighten. The air pipe of the gas bag (27) communicates with the air pipe (33), and the air pipe (33) communicates with the ventilation hose (35) penetrating the wire passage pipe (31). 35) is in communication with a gas bladder air pump (37) located in the downward pressing bracket (21). The material feeding/clamping device (6) comprises a clamping/elevating bracket (11) arranged below the lower plate (1), and a clamping/elevating ball screw (12) is threadedly connected to the clamping/elevating bracket (11). A clamping lifting nut (13) is connected to the clamping lifting ball screw (12), and the upper end of the clamping lifting ball screw (12) passes through the lower plate (1) and a clamping lifting table (14). and a clamping part is disposed on the clamping lifting platform (14), and a lifting sealing sleeve (15) is disposed under the clamping lifting platform (14), and the lifting sealing sleeve (15) is connected to the lower plate ( 1), said clamping lift ball screw (12) is in a lift sealing sleeve (15) and said clamping part is arranged on a clamping lifter (14). The clamping mounting block (16) is arranged vertically, and at least three or more are arranged. The clamping mounting block (16) is provided with a clamping screw (17 ) is arranged, a clamping lock nut (19) is connected to the clamping screw (17), and the clamping screw (17) is connected to a clamping block (18) linked to the product (9). A sample environment facility facilitating conversion of a product under test according to claim 1.

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