A rapid rotating sample cell device with an optical stop for a diffractometer

Abstract

The utility model discloses a quick rotating sample box device with light shield of diffractometer, including base, support board, rotation assembly, light shield assembly, sample box, wherein base installation is above goniometer, and support board is installed in the front of base, and rotation assembly is installed on support board, and light shield assembly is installed above base, and sample box is placed on the sample holder in rotation assembly, the utility model has the advantages that: this device is driven synchronous pulley B, synchronous belt, synchronous pulley A, sample holder rotation through motor rotation, and then drives sample box rotation, and the rotating speed of sample box and motor is synchronous, makes sample box have quick autorotation ability and adjustable speed, and the distance between light shield in light shield assembly and sample box is adjustable, and the swing arm can rotate and can hover at any angle to facilitate taking out sample box, and the device is the functional expansion of the past rotating sample box device, is applicable to the X ray test occasion of quick rotation requirement to sample, and is suitable for widely promoting.

Description

Technical Field

[0001] This utility model relates to the field of X-rays, specifically a rapidly rotating sample box device with a light-shielding plate for a diffractometer. Background Technology

[0002] With the development of X-ray diffraction technology and the continuous updating of new materials, X-ray diffractometers and their accessories are also constantly being upgraded to meet the needs of scientific and technological development. In X-ray diffraction analysis, certain special samples require continuous and rapid rotation while being scanned by X-rays to analyze material properties. Previous rotating sample box devices mostly used worm gear drives, which could not achieve very high rotation speeds, thus hindering the analysis of material properties and failing to meet current X-ray diffraction testing requirements. Therefore, there is an urgent need for a device that can rapidly rotate the sample box and, as needed, block the X-ray transmission. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses a rapid rotating sample box device with a light-shielding plate for a diffractometer.

[0004] The specific technical solution is as follows:

[0005] A rapid rotating sample box device with a light shield for a diffractometer includes a base, a support plate, a rotating assembly, a light shield assembly, and a sample box. The base is mounted on a goniometer, the support plate is mounted in front of the base, the rotating assembly is mounted on the support plate, the light shield assembly is mounted above the base, and the sample box is placed on a sample holder in the rotating assembly.

[0006] The rotating assembly includes a pair of bearings, a sample holder, a locking nut, a bearing cap, a synchronous pulley A, a synchronous belt, a synchronous pulley B, a motor, positioning posts, a proximity switch bracket, a proximity switch, and a stop bar. The pair of bearings are installed inside the stepped slot holes on the support plate. The sample holder is fixed in the inner hole of the bearing. The inner wall end face of the bearing is fixed by the locking nut and the tightness of the bearing is adjusted. The outer wall end face is fixed by the bearing cap. The synchronous pulley A is fixed on the outer circumference of the bottom of the sample holder. The synchronous pulley A is connected to the synchronous pulley B through the synchronous belt. The inner hole of the synchronous pulley B is connected to the motor shaft of the motor. The motor is installed in the groove above the support plate. Three sets of positioning posts are provided above the sample holder to position the sample box. The proximity switch bracket is fixed below the support plate. The proximity switch is installed on the proximity switch bracket and is opposite to the stop bar installed on the locking nut.

[0007] The light-shielding plate assembly includes a support arm, a damping shaft, a rotating arm, a linear shaft, a spring, a sliding frame, a light-shielding plate, and adjusting screws. The support arm is mounted above the base. One end of the damping shaft is installed in the semi-circular hole at the front end of the support arm, and the other end of the damping shaft is installed in the semi-circular hole of the rotating arm. The rotating arm has two sets of circular holes for installing two sets of linear shafts. The lower part of the linear shafts is connected to two sets of holes on the sliding frame. A spring is installed between the rotating arm and the sliding frame. The light-shielding plate is installed below the sliding frame. The rotating arm has a groove for installing adjusting screws, and the adjusting screws are connected to the sliding frame. The upper surface of the rotating arm in the light-shielding plate assembly is parallel to the upper surface of the support arm.

[0008] The motor is installed inside the grooved support plate and is directly connected to the sample holder via a synchronous belt, enabling the sample box to rotate rapidly.

[0009] The adjusting screw in the light shield assembly is installed in a groove inside the rotating arm. When the adjusting screw is turned clockwise, the bottom of the adjusting screw engages with the groove, causing the light shield to rise; when the adjusting screw is turned counterclockwise, the top of the adjusting screw engages with the groove, causing the light shield to fall.

[0010] When the stop edge A on the rotating arm and the stop edge B on the support arm in the light shield assembly abut against each other, the rotating arm remains horizontal.

[0011] The rotating arm in the light shield assembly is provided with an arc M, which allows the rotating arm to rotate 90 degrees.

[0012] The light-shielding plate assembly is equipped with a damping pivot, which allows the rotating arm to be suspended at any angle within a 90-degree range;

[0013] The advantages of this utility model are: Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is the left view of the present invention;

[0017] Figure 4 This is a top view of the present invention;

[0018] Figure 5 This is a left sectional view of the present invention;

[0019] Figure 6 This is a front sectional view of the present invention;

[0020] Figure 7 This is a schematic diagram of the arm rotating 90 degrees.

[0021] Figure 8This is a schematic diagram of the present invention installed on a goniometer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All the embodiments of the present utility model obtained by those skilled in the art without creative effort are based on the embodiments of the present utility model.

[0023] A rapid rotating sample box device with a light shield for a diffractometer includes a base 1, a support plate 2, a rotating assembly 3, a light shield assembly 4, and a sample box 5. The base 1 is mounted on a goniometer 6, the support plate 2 is mounted in front of the base 1, the rotating assembly 3 is mounted on the support plate 2, the light shield assembly 4 is mounted above the base 1, and the sample box 5 is placed on a sample holder 302 in the rotating assembly 3.

[0024] The rotating assembly 3 includes a pair of bearings 301, a sample holder 302, a locking nut 303, a bearing cap 304, a synchronous pulley A 305, a synchronous belt 306, a synchronous pulley B 307, a motor 308, a positioning post 309, a proximity switch bracket 310, a proximity switch 311, and a stop bar 312. The pair of bearings 301 are installed inside stepped slots on the support plate 2. The sample holder 302 is fixed inside the bearing 301. The inner wall end face of the bearing 301 is fixed by the locking nut 303, which adjusts the tightness of the bearing 301. The outer wall end face is covered by the bearing cap 304. The sample holder 302 is fixed with a timing pulley A305 on the outer circumference of its bottom. The timing pulley A305 is connected to the timing pulley B307 via a timing belt 306. The inner hole of the timing pulley B307 is connected to the motor shaft of the motor 308. The motor 308 is installed in the groove above the support plate 2. Three sets of positioning posts 309 are provided above the sample holder 302 to position the sample box 5. The proximity switch bracket 310 is fixed below the support plate 2. The proximity switch 311 is installed on the proximity switch bracket 310. The proximity switch 311 is opposite to the stop bar 312 installed on the locking nut 303.

[0025] The light-shielding plate assembly 4 includes a support arm 401, a damping shaft 402, a rotating arm 403, a linear shaft 404, a spring 405, a sliding frame 406, a light-shielding plate 407, and an adjusting screw 408. The support arm 401 is installed above the base 1. One end of the damping shaft 402 is installed in the semi-circular hole at the front end of the support arm 401, and the other end of the damping shaft 402 is installed in the semi-circular hole of the rotating arm 403. The rotating arm 403 has two sets of circular holes for installing two sets of linear shafts 404. The lower part of the linear shafts 404 is connected to two sets of holes on the sliding frame 406. The spring 405 is installed between the rotating arm 403 and the sliding frame 406. The light-shielding plate 407 is installed below the sliding frame 406. The rotating arm 403 has a groove for installing the adjusting screw 408, and the adjusting screw 408 is connected to the sliding frame 406.

[0026] The motor 308 is installed inside the support plate 2 with grooves and is directly connected to the sample holder 302 via the synchronous belt 306, so that the sample box 5 has a rapid rotation function.

[0027] The adjusting screw 408 in the light shield assembly 4 is installed in the groove inside the rotating arm 403. When the adjusting screw 408 is turned clockwise, the bottom of the adjusting screw 408 is in contact with the groove, causing the light shield 407 to rise; when the adjusting screw 408 is turned counterclockwise, the top of the adjusting screw 408 is in contact with the groove, causing the light shield 407 to fall.

[0028] When the side flange A on the rotating arm 403 and the side flange B on the support arm 401 in the light shield assembly 4 come into contact with each other, the rotating arm 403 remains horizontal.

[0029] The rotating arm 403 in the light shield assembly 4 is provided with an arc M, so that the rotating arm 403 can rotate 90 degrees.

[0030] The light-shielding plate assembly 4 is equipped with a damping pivot 402, which allows the pivot arm to be suspended at any angle within a 90-degree range;

[0031] The working principle of this utility model is as follows:

[0032] First, the rotating arm 403 is rotated upwards by 90° and suspended using the damping shaft 402. The sample box 5 is positioned on the sample holder 302 using the three sets of positioning posts 309 above the sample holder 302. Then, the rotating arm 403 is rotated downwards to a horizontal position. Next, by rotating the adjusting screw 408 in the groove of the rotating arm 403, the sliding frame 406 is driven to move up and down along the linear axis 404. This, combined with the spring 405, adjusts the distance between the light-shielding plate 407 and the sample box 5 to the required height. Subsequently, the motor 308 starts, driving the synchronous pulley A305 to rotate via the synchronous pulley B307 and the synchronous belt 306. This, in turn, drives the sample holder 302 to rotate at high speed within the stepped slots of the support plate 2 via paired bearings 301. The inner wall of the bearing 301 is fixed by a locking nut 303, and the outer wall is fixed by a bearing cap 304 to ensure rotational stability. At this time, X The sample is irradiated from one side. After the light shield 407 blocks part of the radiation, the reflected radiation from the other side is used for detection. During the process, the proximity switch 311 under the support plate 2 cooperates with the stop bar 312 on the locking nut 303 to assist in detecting the rotation position or state.

Claims

1. A rapidly rotating sample box device with a light-shielding plate for a diffractometer, characterized in that: The assembly includes a base (1), a support plate (2), a rotating assembly (3), a light shield assembly (4), and a sample box (5). The base (1) is mounted on the goniometer (6), the support plate (2) is mounted in front of the base (1), the rotating assembly (3) is mounted on the support plate (2), the light shield assembly (4) is mounted above the base (1), and the sample box (5) is placed on the sample holder (302) in the rotating assembly (3). The rotating assembly (3) includes a pair of bearings (301), a sample holder (302), a locking nut (303), a bearing cap (304), a synchronous pulley A (305), a synchronous belt (306), a synchronous pulley B (307), and a motor (308). The pair of bearings (301) are installed in the stepped slot of the support plate (2). The sample holder (302) is fixed in the inner hole of the bearing (301). The inner wall end face of the bearing (301) is fixed by the locking nut (303), and the outer wall end face is fixed by the bearing cap (304). The synchronous pulley A (305) is fixed on the outer side of the bottom circumference of the sample holder (302). The synchronous pulley A (305) is connected to the synchronous pulley B (307) through the synchronous belt (306). The inner hole of the synchronous pulley B (307) is connected to the motor shaft of the motor (308). The motor (308) is installed in the groove above the support plate (2). The light shield assembly (4) includes a support arm (401), a damping shaft (402), a rotating arm (403), and a light shield (407). The support arm (401) is mounted above the base (1), and one end of the damping shaft (402) is installed in the semi-circular hole at the front end of the support arm (401). The light shield (407) is connected to the bottom of the rotating arm (403).

2. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 1, characterized in that: The rotating arm (403) is provided with two sets of round holes for installing two sets of linear shafts (404). The linear shafts (404) are connected to the two sets of holes on the sliding frame (406) below. A spring (405) is installed between the rotating arm (403) and the sliding frame (406). A light shield (407) is installed below the sliding frame (406). The rotating arm (403) is provided with a groove for installing an adjusting screw (408). The adjusting screw (408) is connected to the sliding frame (406).

3. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 1, characterized in that: The sample holder (302) is provided with three sets of positioning posts (309) above it, which position the sample box (5).

4. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 1, characterized in that: A proximity switch bracket (310) is provided below the support plate (2), and a proximity switch (311) is installed on the proximity switch bracket (310). The proximity switch (311) is opposite to the stop bar (312) installed on the locking nut (303).

5. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 1, characterized in that: The upper plane of the rotating arm (403) in the light shield assembly (4) is parallel to the upper plane of the support arm (401).

6. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 1, characterized in that: The arm (403) of the light-shielding plate assembly (4) is provided with an arc M.

7. The rapidly rotating sample box device with a light-shielding plate for a diffractometer according to claim 2, characterized in that: The damping shaft (402) in the light shield assembly (4) drives the rotating arm (403) to rotate within a range of 0-90 degrees and hover at any angle.

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