Rotary sample changing device for multi-station sample box

Abstract

The utility model discloses a rotary sample changing device for a multi-station sample box. A pair of bearings A and a pair of bearings B are arranged on a bearing chamber; a rotating shaft A is arranged in the paired bearings A, the upper part of the rotating shaft A is connected with a turntable, the turntable is provided with a multi-station sample box groove, and a sample box is arranged in the sample box groove; a rotating shaft B is arranged in the paired bearings B, and a worm gear is mounted on the outer side of the middle of the rotating shaft B and meshed with the worm; a magnetic suction device is mounted at the bottom of the sample box and is adsorbed on the upper plane of a rotating shaft B which drives the sample box to rotate; a gear B is installed on the outer side of the bottom of the rotating shaft B, a gear A is installed on the outer side of the bottom of the rotating shaft A, the gear B is meshed with a gear C, bearings C are installed at the upper end and the lower end of the gear C respectively, and the two bearings C are installed in the guide grooves of the upper guide plate and the lower guide plate respectively and can slide in the guide grooves. The utility model has the advantages that the rotation of the sample box and the rotary sample change of the turntable are realized by adopting the positive and negative rotation of the motor and the unique gear meshing mode.

Description

Technical Field

[0001] The utility model relates to an X-ray diffractometer, in particular to a sample changing device for an X-ray diffractometer. Background Art

[0002] At present, in the existing X-ray diffractometer multi-station sample box rotating sample changing device, in order to realize both the multi-station sample changing detection and the sample box self-rotation detection, two sets of motors are used, one for sample changing and one for rotation. The two sets of transmission devices are very cumbersome in terms of weight, volume, and control. Not only for the X-ray diffraction industry, but also for multi-station rotating sample changing equipment in other industries, it is particularly important to develop a device that can realize this function with a single motor. Utility Model Content

[0003] Aiming at the disadvantage that two sets of motors are used in the prior art to realize multi-station rotation and sample changing, in order to save manufacturing cost and maintenance cost, and to save energy and reduce consumption, the utility model aims to provide a multi-station sample box rotation sample changing device, comprising a bearing chamber, on which a pair of bearings A and a pair of bearings B are arranged;

[0004] A rotating shaft A is arranged in the pair of bearings A, the upper part of the rotating shaft A is connected to a turntable, the turntable is provided with a multi-station sample box slot, and the sample box is installed in the sample box slot;

[0005] A rotating shaft B is arranged in the paired bearings B, a worm wheel is arranged outside the middle of the rotating shaft B, and the worm wheel is meshed with the worm; a first toothed belt wheel is arranged at the end of the worm, and the first toothed belt wheel is connected to a second toothed belt wheel arranged on the motor shaft through a toothed belt;

[0006] A magnetic device is installed at the bottom of the sample box and adsorbed on the upper plane of the rotating shaft B, and the rotating shaft B drives the sample box to rotate;

[0007] Gear B is installed on the outer side of the bottom of rotating shaft B, gear A is installed on the outer side of the bottom of rotating shaft A, gear B is meshed with gear C, bearings C are installed on the upper and lower ends of gear C respectively, the two bearings C are respectively installed in the guide grooves of the upper and lower guide plates, and bearings C can slide in the guide grooves.

[0008] The bottom of the sample box is lower than the upper end surface of the rotating axis B. The bottom edge of the sample box and the bottom edge of the rotating axis B are rounded structures. When changing samples, the sample box will be pushed to the top of the rotating axis B along the rounded corner, forming a gap between the sample box and the turntable.

[0009] It also includes a sample stage base, which is connected to the sample stage support plate. The multi-station sample box rotary sample changing device is installed on the sample stage support plate. The entire multi-station sample box rotary sample changing device is installed on the goniometer through the sample stage base.

[0010] The pair of bearings A and the pair of bearings B are arranged in a bearing chamber, and the bearing chamber is fixed on a sample stage support plate.

[0011] The lower bearing inner rings of the paired bearings A and B are locked by locking nuts.

[0012] The outer end of each sample box is positioned by four positioning posts mounted on the turntable.

[0013] The motor is fixed on a motor fixing plate, and the motor fixing plate is installed on a sample stage supporting plate.

[0014] The worm is installed inside the worm bearing, the worm bearing is installed inside the worm bearing seat, and the worm bearing seat is installed on the sample stage supporting plate.

[0015] When applied to an X-ray diffractometer, the multi-station sample box rotating sample changing device is installed on a goniometer.

[0016] The advantages of the utility model are: 1. The structure is novel and unique, the control is simple, the energy saving and consumption reduction, and the manufacturing cost and maintenance cost are saved; 2. The forward and reverse rotation of a motor and the unique gear meshing method are adopted to realize two rotation actions, namely the self-rotation of the sample box and the rotation sample replacement of the turntable, which can meet the requirements of loading multiple samples at one time and completing the rotation detection of the samples one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model installed on a diffractometer;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 for Figure 2 Left view of

[0020] Figure 4 for Figure 2 A top view of

[0021] Figure 5 for Figure 2 Left sectional view of

[0022] Figure 6 for Figure 3 AA section view;

[0023] Figure 7 This is a diagram of the gear positions when the sample box rotates;

[0024] Figure 8 This is a diagram of the gear positions when the turntable rotates;

[0025] Fig. 9 It is a stereoscopic diagram of the gear position when the sample box rotates;

[0026] Fig.10 It is a stereoscopic diagram of the gear position when the turntable rotates;

[0027] Fig.11 is a partial cross-sectional view of the sample box and the rotation axis B;

[0028] Among them, 1 is the sample stage base, 2 is the sample stage support plate, 3 is the multi-station sample box rotating sample changing device, 301 is the bearing chamber, 302 is the paired bearings A, 303 is the paired bearings B, 304 is the bearing cover, 305 is the rotating shaft A, 306 is the locking nut, 307 is the turntable, 308 is the sample box, 309 is the positioning column, 310 is the rotating shaft B, 311 is the worm gear, 312 is the worm, 313 is the worm bearing, 314 is the worm bearing seat, 315 is the first toothed belt pulley, 316 is the toothed belt, 317 is the second toothed belt pulley, 318 is the motor, 319 is the motor fixing plate, 320 is the gear B, 321 is the gear A, 322 is the gear C, 323 is the bearing C, 324 is the guide plate, 325 is the guide groove, 326 is the magnetic suction device, and 4 is the goniometer. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the accompanying drawings of the specification.

[0030] like Figures 1 to 11As shown, a multi-station sample box rotary sample changing device, the number of stations can be set to multiple according to the situation, and in this embodiment, there are 6 stations, which are installed on the goniometer 4, including a sample stage base 1, a sample stage support plate 2 and a multi-station sample box rotary sample changing device 3, wherein the sample stage base 1 is connected to the sample stage support plate 2, the multi-station sample box rotary sample changing device 3 is installed on the sample stage support plate 2, and the entire multi-station sample box rotary sample changing device 3 is installed on the goniometer 4 through the sample stage base 1. The bearing chamber 301 in the multi-station sample box rotating sample changing device 3 is installed on the sample stage support plate 2, and a pair of bearings A302 and a pair of bearings B303 are installed in the bearing chamber 301. The outer rings of the lower bearings of the paired bearings A302 and the paired bearings B303 are fixed by the bearing cover 304, and a rotating shaft A305 is arranged in the paired bearing A302; the inner rings of the lower bearings of the paired bearings A302 and the paired bearings B303 are locked by the locking nut 306, and the upper part of the rotating shaft A305 is connected to the turntable 307, and the turntable 307 is provided with a multi-station sample box slot, and the sample box 308 is installed in the sample box slot, and the outer end of each sample box 308 is positioned at the center by four positioning columns 309 installed on the turntable 307; a rotating shaft B310 is arranged in the paired bearings B303, and a worm gear 311 is installed on the outer side of the middle part of the rotating shaft B310, and the worm gear 311 is connected to the worm gear 311. Rod 312 is meshing; worm 312 is installed inside of worm bearing 313, worm bearing 313 is installed inside of worm bearing seat 314, first toothed pulley 315 is installed on the outer end of worm 312, first toothed pulley 315 is connected with second toothed pulley 317 installed on the shaft of motor 318 through toothed belt 316, motor 318 is fixed on motor fixing plate 319, motor fixing plate 319 is installed on sample stage support plate 2; gear B320 is installed on the outer side of the bottom of rotating shaft B310, gear A321 is installed on the outer side of the bottom of rotating shaft A305, gear B320 is always meshing with gear C322, bearings C323 are installed on the upper and lower ends of gear C322 respectively, two bearings C323 are respectively installed in guide grooves 325 of upper and lower guide plates 324, bearings C323 can slide in guide grooves 325.

[0031] like Figures 5 to 10 As shown, one motor 318 is used to realize two sets of rotation actions, that is, when the motor 318 rotates forward, the worm gear 311 and the worm 312 drive the rotating shaft B310 to rotate forward and rotate the sample box 308, at this time, the gear C322 is not engaged with the gear A321, and the rotating shaft A305 does not rotate; when the motor 318 rotates reversely, the worm gear 311 and the worm 312 drive the rotating shaft B310 to rotate reversely, at this time, the gear C322 is engaged with the gear A321, and the rotating shaft A305 rotates reversely to drive the turntable 307 to rotate and change samples;

[0032] like Figures 7-10As shown, the gear C322 is pushed toward the end close to the gear A321 along the guide groove 325 in the guide plate 324 by the driving force of the gear B320, so that the gear C322 is meshed with the gear A321, driving the gear A321 to rotate, thereby driving the rotation axis A305 to rotate, and realizing the sample changing function of the turntable 307. Conversely, the gear C322 is pushed toward the end away from the gear A321 along the guide groove 325 in the guide plate 324 by the driving force of the gear B320, so that the gear C322 is separated from the gear A321, and the gear A321 stops rotating;

[0033] like Fig.11 As shown, the bottom of the sample box 308 is designed to be lower than the upper end surface of the rotating shaft B310, and the bottom edge of the sample box 308 and the bottom edge of the rotating shaft B310 are rounded R structures. When changing samples, the sample box 308 will be pushed to the top of the rotating shaft B310 along the rounded corner, so that a gap H is formed between the sample box 308 and the turntable 307. A magnetic suction device 326 is installed at the bottom of the sample box 308 to adsorb on the upper plane of the rotating shaft B310, and the rotating shaft B310 can drive the rotation of the sample box 308.

[0034] The utility model is not limited to the X-ray diffraction industry, and other industries involving multi-station sample changing devices are all within the protection scope of the utility model.

Claims

1. A multi-station sample box rotating sample changing device, characterized in that: It comprises a bearing chamber, on which a pair of bearings A and a pair of bearings B are arranged; A rotating shaft A is arranged in the pair of bearings A, the upper part of the rotating shaft A is connected to a turntable, the turntable is provided with a multi-station sample box slot, and the sample box is installed in the sample box slot; A rotating shaft B is arranged in the paired bearings B, a worm wheel is arranged outside the middle of the rotating shaft B, and the worm wheel is meshed with the worm; a first toothed belt wheel is arranged at the end of the worm, and the first toothed belt wheel is connected to a second toothed belt wheel arranged on the motor shaft through a toothed belt; A magnetic device is installed at the bottom of the sample box and adsorbed on the upper plane of the rotating shaft B, and the rotating shaft B drives the sample box to rotate; Gear B is installed on the outer side of the bottom of rotating shaft B, gear A is installed on the outer side of the bottom of rotating shaft A, gear B is meshed with gear C, bearings C are installed on the upper and lower ends of gear C respectively, the two bearings C are respectively installed in the guide grooves of the upper and lower guide plates, and bearings C can slide in the guide grooves.

2. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The bottom of the sample box is lower than the upper end surface of the rotating axis B. The bottom edge of the sample box and the bottom edge of the rotating axis B are rounded structures. When changing samples, the sample box will be pushed to the top of the rotating axis B along the rounded corner, forming a gap between the sample box and the turntable.

3. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: It also includes a sample stage base, which is connected to the sample stage support plate. The multi-station sample box rotary sample changing device is installed on the sample stage support plate. The entire multi-station sample box rotary sample changing device is installed on the goniometer through the sample stage base.

4. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The pair of bearings A and the pair of bearings B are arranged in a bearing chamber, and the bearing chamber is fixed on a sample stage support plate.

5. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The lower bearing inner rings of the paired bearings A and B are locked by locking nuts.

6. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The outer end of each sample box is positioned by four positioning posts mounted on the turntable.

7. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The motor is fixed on a motor fixing plate, and the motor fixing plate is installed on a sample stage supporting plate.

8. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The worm is installed inside the worm bearing, the worm bearing is installed inside the worm bearing seat, and the worm bearing seat is installed on the sample stage supporting plate.

9. The multi-station sample box rotating sample changing device according to claim 1, characterized in that: The multi-station sample box rotating sample changing device is installed on the goniometer.

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