Sample fixing device for XRF detection of brake lining

Abstract

The utility model discloses a sample fixing device for XRF (X-Ray Fluorescence) detection of a brake lining, and belongs to the technical field of XRF detection. The sample fixing device used for XRF detection of the brake lining comprises a sample cup and further comprises a supporting plate used for supporting a sample piece, a detection hole is formed in the sample cup, a bottom plate is arranged in the detection hole in a lifting mode, a first spring is fixedly arranged between the bottom plate and the supporting plate, and a second spring is fixedly arranged between the bottom plate and the supporting plate. A lifting part for driving the bottom plate to lift is arranged in the sample cup; the upper cover is in threaded connection with the top of the sample cup; a transparent plate is arranged on the upper cover; according to the utility model, the bottom plate drives the supporting plate and the sample piece to be linearly close to the transparent plate, so that the rotation between the sample piece and the transparent plate can be avoided, scratches on the transparent plate can be reduced, the service life of the transparent plate is prolonged, and the accuracy of detection data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of XRF detection, in particular to a sample fixing device used for XRF detection of brake linings. Background Art

[0002] X-ray fluorescence (XRF) analysis technology has the advantages of low cost, high speed, non-destructive detection, simultaneous measurement of multiple elements, simple sample preparation, easy operation, and few consumables and reagents. It is widely used in the composition detection of solid, powder and other types of samples. When using XRF analyzers for sample analysis, you first need to prepare the sample, that is, process the sample to be tested according to a certain process, then put the prepared sample into the sample cup dedicated to the XRF analyzer, and then put it into the instrument for measurement to obtain the type and content information of the element to be tested in the sample.

[0003] When using an existing sample cup, a sample sheet is usually placed on an elastic support plate inside the sample cup, and then an upper cover with a transparent plate is screwed onto the sample cup. During this process, the sample is easily rubbed against the transparent plate in the upper cover, resulting in scratches on the transparent cover, which affects the service life of the upper cover and the accuracy of the test results. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the transparent cover is prone to friction with the sample sheet during rotation, resulting in scratches on the inner wall of the transparent cover and affecting the use, and proposes a sample fixing device for XRF detection of brake linings.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sample fixing device for XRF detection of brake linings includes a sample cup and a support plate for supporting a sample sheet, wherein a detection hole is opened in the sample cup, a bottom plate is arranged in the detection hole for lifting, a first spring is fixedly arranged between the bottom plate and the support plate, and a lifting part for driving the bottom plate to lift is arranged in the sample cup; an upper cover threadedly connected to the top of the sample cup, and a transparent plate is arranged on the upper cover.

[0007] In order to facilitate the installation and removal of the mounting ring, preferably, a mounting hole is opened on the upper cover, a mounting ring is fixedly arranged in the mounting hole through a connecting piece, and the transparent plate is fixedly arranged in the mounting ring.

[0008] In order to facilitate the replacement of the mounting ring and the transparent plate, the connecting member further includes a push plate slidably arranged in the upper cover, a limiting groove is provided in the upper cover, a clamping block is slidably arranged in the limiting groove, one end of the push plate extending into the limiting groove is fixedly connected to the clamping block, and a slot is provided on the outer wall of the mounting ring, one end of the clamping block is engaged with the slot, a second spring is provided in the limiting groove, and both ends of the second spring respectively resist the clamping block and the limiting groove.

[0009] In order to facilitate the driving of the base plate to rise and fall, preferably, the lifting part includes a screw rotatably arranged in the sample cup, guide grooves are provided on the inner walls on both sides of the detection hole, guide plates are fixedly arranged at both ends of the base plate, the guide plates are slidably arranged in the guide grooves, the screw is rotatably arranged in one group of guide grooves, and the guide plate is threadedly connected to the screw.

[0010] Furthermore, a rotating shaft is fixedly provided at one end of the screw rod, a gear is fixedly provided on the rotating shaft, an annular seat is rotatably provided on the outer wall of the sample cup, a gear ring is fixedly provided on the inner wall of the annular seat, and the gear ring is meshed with the gear.

[0011] Preferably, a cleaning hole connected to the detection hole is opened at the bottom of the sample cup, a rubber plug is arranged in the cleaning hole, and a rubber ring is fixedly arranged on the side wall of the support plate, and the outer wall of the rubber ring abuts against the inner wall of the detection hole.

[0012] Compared with the prior art, the utility model provides a sample fixing device for brake lining XRF detection, which has the following beneficial effects:

[0013] 1. The sample fixing device for XRF detection of brake linings is provided by placing the sample sheet on the support plate, then screwing the upper cover on the sample cup, and then starting the lifting part to lift the bottom plate. During the lifting process, the bottom plate can bring the support plate and the sample sheet to a straight line approach to the transparent plate through the first spring, thereby avoiding rotation between the sample sheet and the transparent plate, thereby reducing scratches on the transparent plate, and improving the service life of the transparent plate and the accuracy of the detection data;

[0014] 2. The sample fixing device for XRF detection of brake linings fixes the transparent plate on the mounting ring, and then disassembles the mounting ring using a connector and sets it in the upper cover. On the one hand, the mounting ring and the transparent plate are easy to install and disassemble, and when the transparent plate is damaged, it is more convenient to replace it. On the other hand, the mounting ring with transparent plates of different diameters can be replaced according to the needs of detection, thereby appropriately reducing the number of sample cups and reducing the cost of use.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can avoid rotation between the sample sheet and the transparent plate by bringing the support plate and the sample sheet to the transparent plate in a straight line through the bottom plate, thereby reducing scratches on the transparent plate, improving the service life of the transparent plate and the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure diagram of the sample fixing device for XRF testing of brake linings proposed by the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The structure diagram of the sample fixing device for XRF testing of brake linings proposed by the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 A cross-sectional view of a sample fixing device for XRF testing of brake linings proposed by the utility model;

[0019] Figure 4 The sample fixing device for XRF detection of brake lining proposed by the utility model Figure 3 Enlarged view of part A.

[0020] In the figure: 1. sample cup; 101. detection hole; 102. guide groove; 103. cleaning hole; 104. rubber plug; 2. bottom plate; 201. support plate; 202. first spring; 203. guide plate; 204. rubber ring; 3. screw; 301. gear; 4. annular seat; 401. gear ring; 5. upper cover; 501. mounting hole; 502. limit groove; 6. mounting ring; 601. transparent plate; 602. slot; 7. block; 701. push plate; 702. second spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 4 , a sample fixing device for XRF detection of brake linings, comprising a sample cup 1, and also comprising: a support plate 201 for supporting a sample sheet, a detection hole 101 is opened in the sample cup 1, a bottom plate 2 is lifted and arranged in the detection hole 101, a first spring 202 is fixedly arranged between the bottom plate 2 and the support plate 201, and a lifting part for driving the bottom plate 2 to lift and lower is arranged in the sample cup 1; an upper cover 5 is threadedly connected to the top of the sample cup 1, and a transparent plate 601 is arranged on the upper cover 5, and the transparent plate 601 can be a glass or acrylic plate, preferably a glass. When in use, by placing the sample sheet on the support plate 201, and then tightening the upper cover 5 on the sample cup 1, and then starting the lifting part to lift the bottom plate 2, during the lifting process, the bottom plate 2 can bring the support plate 201 and the sample sheet to the transparent plate 601 in a straight line through the first spring 202, which can avoid the rotation between the sample sheet and the transparent plate 601, thereby reducing the scratches on the transparent plate 601, and improving the service life of the transparent plate 601 and the accuracy of the detection data.

[0025] Reference Figure 1 and Figure 3 A mounting hole 501 is provided on the upper cover 5, and a mounting ring 6 is fixedly provided in the mounting hole 501 through a connecting piece, and a transparent plate 601 is fixedly provided in the mounting ring 6. When in use, the transparent plate 601 is fixed on the mounting ring 6, and then the mounting ring 6 is disassembled and provided in the upper cover 5 through a connecting piece. On the one hand, the mounting ring 6 and the transparent plate 601 are convenient to assemble and disassemble, and when the transparent plate 601 is damaged, it is convenient to replace it. On the other hand, the mounting ring 6 with transparent plates 601 of different diameters can be replaced according to the needs of detection, so that the number of sample cups 1 can be appropriately reduced and the use cost can be reduced.

[0026] Reference Figure 1 , Figure 3 and Figure 4 The connecting piece can be a screw or a buckle. Here, we design the connecting piece as follows: a push plate 701 is slidably arranged in the upper cover 5, a limiting groove 502 is provided in the upper cover 5, a clamping block 7 is slidably arranged in the limiting groove 502, one end of the push plate 701 extending into the limiting groove 502 is fixedly connected with the clamping block 7, and a slot 602 is provided on the outer wall of the mounting ring 6, one end of the clamping block 7 is engaged and connected with the slot 602, a second spring 702 is provided in the limiting groove 502, and the two ends of the second spring 702 are respectively against the clamping block 7 and the limiting groove 502. When in use, the clamping block 7 is slid with the push plate 701 to move away from the slot 602. At this time, the mounting ring 6 and the transparent plate 601 can be removed from the mounting hole 501, which is convenient for assembly and disassembly and reliable for fixation.

[0027] Reference Figure 1-Figure 3The lifting part can use a cylinder, a hydraulic cylinder or an electric telescopic cylinder to drive the bottom plate 2 to lift. Here, we design the lifting part as follows: a screw rod 3 is rotatably arranged in the sample cup 1, and the screw rod 3 preferably uses a screw rod 3 with a self-locking thread. Guide grooves 102 are opened on the inner walls on both sides of the detection hole 101, and guide plates 203 are fixedly arranged at both ends of the bottom plate 2. Two groups of guide plates 203 are respectively slidably arranged in the corresponding guide grooves 102, and the screw rod 3 is rotatably arranged in one group of guide grooves 102, and the guide plate 203 is threadedly connected to the screw rod 3. When in use, by driving the screw rod 3 to rotate, the bottom plate 2 can be driven to lift and lower along the guide groove 102, and the operation is reliable and the driving is convenient.

[0028] Reference Figure 1-Figure 3 A rotating shaft is fixedly arranged on one end of the screw rod 3, a gear 301 is fixedly arranged on the rotating shaft, an annular seat 4 is rotatably arranged on the outer wall of the sample cup 1, a gear ring 401 is fixedly arranged on the inner wall of the annular seat 4, the gear ring 401 is meshed with the gear 301, when in use, the gear ring 401 is rotated by the annular seat 4, the rotating shaft and the screw rod 3 can be driven to rotate through the gear 301, so that the bottom plate 2 can be driven to rise and fall, the adjustment is convenient and reliable, and the use effect is improved.

[0029] Reference Figure 2 and Figure 3 A cleaning hole 103 connected to the detection hole 101 is provided at the bottom of the sample cup 1, and a rubber plug 104 is provided in the cleaning hole 103. The rubber plug 104 is inserted into the cleaning hole 103, and a rubber ring 204 is fixedly provided on the side wall of the support plate 201, and the outer wall of the rubber ring 204 is abutted against the inner wall of the detection hole 101. When in use, the rubber ring 204 is fixedly provided on the side wall of the support plate 201, which can reduce the residue of the sample sheet from entering the detection hole 101 and reduce the difficulty of cleaning. Moreover, a cleaning hole 103 is provided at the bottom of the sample cup 1. After the rubber plug 104 is removed, it is convenient to clean the inside of the sample cup 1, thereby improving the use effect. Before and after the detection, the sample cup 1, the upper cover 5, the transparent plate 601, etc. need to be disinfected.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sample holder for XRF testing of brake linings, comprising a sample cup (1), characterized in that: Also includes: A support plate (201) for supporting a sample sheet, a detection hole (101) being provided in the sample cup (1), a bottom plate (2) being provided in the detection hole (101) for lifting, a first spring (202) being fixedly provided between the bottom plate (2) and the support plate (201), and a lifting part for driving the bottom plate (2) to lift and lower being provided in the sample cup (1); An upper cover (5) is threadedly connected to the top of the sample cup (1), and a transparent plate (601) is provided on the upper cover (5).

2. The sample fixture for XRF testing of brake linings according to claim 1, characterized in that: The upper cover (5) is provided with a mounting hole (501), a mounting ring (6) is fixedly arranged in the mounting hole (501) via a connecting piece, and the transparent plate (601) is fixedly arranged in the mounting ring (6).

3. The sample fixture for XRF testing of brake linings according to claim 2, characterized in that: The connecting member comprises a push plate (701) slidably arranged in the upper cover (5), a limiting groove (502) is provided in the upper cover (5), a clamping block (7) is slidably arranged in the limiting groove (502), one end of the push plate (701) extending into the limiting groove (502) is fixedly connected to the clamping block (7), and a slot (602) is provided on the outer wall of the mounting ring (6), one end of the clamping block (7) is engaged and connected with the slot (602), a second spring (702) is provided in the limiting groove (502), and two ends of the second spring (702) are respectively against the clamping block (7) and the limiting groove (502).

4. The sample fixture for XRF testing of brake linings according to claim 1, characterized in that: The lifting part comprises a screw (3) rotatably arranged in the sample cup (1); guide grooves (102) are provided on the inner walls on both sides of the detection hole (101); guide plates (203) are fixedly arranged at both ends of the bottom plate (2); the guide plates (203) are slidably arranged in the guide grooves (102); the screw (3) is rotatably arranged in one group of the guide grooves (102), and the guide plates (203) are threadedly connected to the screw (3).

5. The sample fixture for XRF testing of brake linings according to claim 4, characterized in that: A rotating shaft is fixedly arranged at one end of the screw rod (3), a gear (301) is fixedly arranged on the rotating shaft, an annular seat (4) is rotatably arranged on the outer wall of the sample cup (1), a gear ring (401) is fixedly arranged on the inner wall of the annular seat (4), and the gear ring (401) is meshed with the gear (301).

6. The sample fixture for XRF testing of brake linings according to claim 1, characterized in that: A cleaning hole (103) connected to the detection hole (101) is provided at the bottom of the sample cup (1), a rubber plug (104) is provided in the cleaning hole (103), and a rubber ring (204) is fixedly provided on the side wall of the support plate (201), the outer wall of the rubber ring (204) abuts against the inner wall of the detection hole (101).

Images