Portable laser particle analyzer

Abstract

The utility model discloses a portable laser particle analyzer which is used for overcoming the defect that a laser particle analyzer which is portable, high in protection performance and simple in structure is lacked in the prior art. A portable laser particle analyzer comprises a shell, and channel steel is installed on the bottom face in the shell to serve as the bottom. One side of the shell is provided with a front end cover, and the other side is provided with a rear end cover; a plurality of pipeline channels are formed in the front end cover, and clamping claws are mounted in the pipeline channels; a lens cone is arranged on the channel steel close to the front end cover; a sample window and a detector are also arranged on the channel steel; the sample window is installed behind the lens cone, and the detector is installed behind the sample window. The device is compact in structure and convenient to use, and has the characteristics of good environmental adaptability, easiness in operation and low maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of laser measuring instrument, concretely relates to a portable laser particle size instrument. BACKGROUND

[0002] Laser particle size analyzer is a kind of instrument using laser diffraction and scattering principle to measure particle size and its distribution, widely used in material science, pharmaceutical, chemical industry, food and mining and other fields.In these fields, particle size distribution is the key parameter affecting product performance and quality, therefore, accurate, reliable particle size measurement technology is crucial.The working principle of laser particle size analyzer is based on the diffraction and scattering of light.When laser beam passes through particle sample, particles will cause laser scattering and diffraction, form specific light intensity distribution pattern.Through detecting the angle and intensity distribution of these scattered light, using appropriate mathematical model, the size of particles and its distribution can be deduced.Current laser particle size analyzer still has the following problems:

[0003] 1.The volume and portability of equipment: traditional laser particle size analyzer is usually designed as desktop or floor type, large volume, heavy weight.This design is suitable for laboratory environment, but in the application needing on-site detection, it is cumbersome, not convenient to carry and move.In addition, mining and construction industries often need to measure particle size in the field or production site, and the traditional equipment is extremely inconvenient in such environment.

[0004] 2.Environmental adaptability: some laser particle size analyzers have high requirements for working environment, usually need to be operated in clean, dry laboratory conditions to ensure the accuracy of measurement.But the working environment of many industrial sites, especially mining, construction, agriculture and other fields, is relatively harsh, with a lot of dust, moisture and other influencing factors.These environmental conditions will significantly affect the stability and measurement accuracy of the equipment, and even may cause equipment failure.

[0005] 3.Weak protection performance: some laser particle size analyzers lack effective waterproof and dustproof design.In dusty, humid or corrosive gas environment, the equipment is easy to be contaminated and damaged, resulting in inaccurate measurement results or equipment failure.The workload of maintaining and cleaning these equipment is large, which increases the operating cost.

[0006] 4.Complicated operation and high maintenance difficulty: the operation and maintenance of some laser particle size analyzers require high level of professional knowledge and skills.The calibration, cleaning and maintenance process is complex and prone to error.This not only increases the burden of operating personnel, but also limits the application of equipment in some places lacking professional technical support.

[0007] In summary, the existing laser particle size analyzer has many shortcomings in portability, environmental adaptability, protection performance, operation complexity and other aspects.In order to solve these problems, it is of great significance to develop a small-sized, waterproof and dustproof laser particle size analyzer which is easy to operate and maintain. Utility model content

[0008] The utility model discloses a portable laser particle size instrument to overcome the lack of a portable, high protection performance, simple structure's laser particle size instrument in prior art.

[0009] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0010] A portable laser particle size instrument, including the shell, install the channel steel as the bottom on the bottom surface in the shell, install the front end cover on one side of the shell, install the rear end cover on the other side of the shell, open a plurality of pipeline passageways on the front end cover, install the clamping claw in the pipeline passageway, install the lens barrel on the channel steel close to the front end cover, still install the sample window and the detector on the channel steel, install the sample window behind the lens barrel, install the detector behind the sample window.

[0011] Further, the both ends of the shell are provided with elbow respectively, and the shoulder is formed on the inner and outer sides of the shell by the elbow, and the front end cover, the rear end cover and the inner and outer sides of the shell are contacted.

[0012] Further, the front end cover and the rear end cover are contacted with the edge of the shell and the shoulder of the inner and outer sides when being installed on the shell, and the sealing ring is installed on the contact position.

[0013] Further, the lens barrel is fixedly installed on the channel steel of the bottom of the shell through the lens barrel support and the lens barrel support base, the lens barrel is connected with the lens barrel support, the lens barrel support is connected with the lens barrel support base, and the lens barrel support base is fixedly installed on the channel steel.

[0014] Further, the sample window is directly fixed on the channel steel, and the medium inlet and the medium outlet are arranged on the sample window.

[0015] Further, the detector includes the annular detector and the plane detector, the annular detector is installed behind the sample window, and the plane detector is installed behind the annular detector.

[0016] Further, the annular detector is fixed on the detector support, the detector support is fixed on the fixed support frame, and the fixed support frame is fixed on the channel steel.

[0017] Further, the plane detector is slidably connected with a first optical axis, and the first optical axis is fixedly connected with a translation plate through an optical axis support; one side of the translation plate is fixed with an optical axis support, the other side is fixed with an optical axis box slide at the upper portion and a nut seat at the lower portion, and a nut is installed on the nut seat; a second optical axis is sleeved with the optical axis box slide, and the second optical axis is fixed to the bed body through another optical axis support; the nut seat is connected with a lead screw through cooperation with the nut, and the lead screw is fixed to the bed body through a lead screw support seat; and the bed body is fixed on the channel steel.

[0018] Further, the clamping claw comprises a clamping claw, a gasket and a clamping nut are sequentially installed on one side of the clamping claw in the laser particle size instrument, and a clamping sealing ring and a pressing head are sequentially installed on the other side of the clamping claw.

[0019] Further, the shell is in a whole cylindrical shape, a support seat is arranged at the bottom of the outer side of the shell, and a plurality of connecting nodes are arranged at the inner bottom of the shell, wherein the bottom surface of the four surfaces of the connecting nodes facing the inner side of the shell is attached to the bottom of the shell, and the other three surfaces are respectively attached to the inner part of the channel steel.

[0020] Compared with the prior art, the portable laser particle size instrument has the following beneficial technical effects:

[0021] The portable laser particle size instrument has the characteristics of miniaturization, portability, good environmental adaptability, easy operation and low maintenance.

[0022] The connection between the shell and the end cover is strengthened, so that the device can still work stably in an environment with much dust, heavy moisture and large temperature changes, and the waterproof and dustproof performance of the device is also enhanced, so that the device can work stably for a long time in a humid, dusty or corrosive gas environment, the pollution and damage of the device caused by environmental factors are reduced, the service life of the device is prolonged, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the portable laser particle size instrument in the embodiment of the utility model.

[0024] Figure 2 It is an installation schematic view of the inner bottom of the portable laser particle size instrument in the embodiment of the utility model.

[0025] Figure 3A portable laser particle size instrument sample window structure schematic diagram in the embodiment of the utility model.

[0026] Figure 4 A portable laser particle size instrument end cover installation schematic diagram in the embodiment of the utility model.

[0027] Figure 5 A portable laser particle size instrument clamping claw tool structure schematic diagram in the embodiment of the utility model.

[0028] Figure 6 A portable laser particle size instrument clamping claw structure schematic diagram in the embodiment of the utility model.

[0029] In the drawing, 1 is a lens barrel, 2 is a lens barrel support, 3 is a sample window, 3-1 is a medium inlet, 3-2 is a medium outlet, 4 is an annular detector, 5 is a plane detector, 6 is a first light axis, 7 is a translation plate, 8 is a second light axis, 9 is a light axis box type slider, 10 is a bed body, 11 is a screw rod support seat, 12 is a nut seat, 13 is a rear end cover, 14 is a screw cap, 15 is a screw rod, 16 is a light axis support, 17 is an outer shell, 18 is a fixed support frame, 19 is a detector support, 20 is a lens barrel support seat, 21 is a front end cover, 22 is a channel steel, 23 is a connecting knot, 24 is a clamping claw tool, 24-1 is a forcing head, 24-2 is a clamping sealing ring, 24-3 is a clamping claw, 24-4 is a gasket, and 24-5 is a clamping screw cap. DETAILED DESCRIPTION

[0030] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the personnel in the technical field without making creative labor should belong to the protection range of the utility model.

[0031] It should be noted that the terms "first", "second" and the like in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0032] Embodiment 1:

[0033] The embodiment provides a portable laser particle size analyzer, as shown in the accompanying drawings. Figure 1 As shown in the accompanying drawings, the portable laser particle size analyzer in the embodiment comprises a shell 17, a channel steel 22 as a bottom is mounted on the bottom surface in the shell 17; a front end cover 21 is mounted on one side of the shell 17, and a rear end cover 13 is mounted on the other side of the shell; a plurality of pipeline passages are formed in the front end cover 21, and clamping claws 24 are mounted in the pipeline passages; a lens barrel 1 is mounted on the channel steel 22 close to the front end cover 21, and a sample window 3 and a detector are further mounted on the channel steel 22; the detector comprises a ring-shaped detector 4 and a plane detector 5; the sample window 3 is mounted behind the lens barrel 1, the ring-shaped detector 4 is mounted behind the sample window 3, and the plane detector 5 is mounted behind the ring-shaped detector 4.

[0034] Preferably, the shell 17 in the embodiment is designed in a cylindrical shape and is made of aluminum alloy material; the density of the aluminum alloy material is much lower than that of traditional metal materials such as steel and copper, but the strength is relatively high; the shell 17 made of the aluminum alloy material has good mechanical strength and corrosion resistance and also has a relatively low weight. A supporting seat is arranged on the bottom of the outer side of the shell 17 to prevent the laser particle size analyzer from rolling during use.

[0035] Preferably, as shown in the accompanying drawings, the lens barrel 1 in the embodiment is fixedly mounted on the channel steel 22 at the bottom of the shell 17 through a lens barrel support 2 and a lens barrel support seat 20; the lens barrel 1 is connected with the lens barrel support 2; the lens barrel support 2 is connected with the lens barrel support seat 20; and the lens barrel support seat 20 is fixedly mounted on the channel steel 22. Figure 1 Preferably, as shown in the accompanying drawings, the sample window 3 in the embodiment is directly fixed on the channel steel 22; as shown in the accompanying drawings, a medium inlet 3-1 and a medium outlet 3-2 are arranged on the sample window 3 to fill and replace the liquid medium in the sample window.

[0036] Figure 1 Preferably, as shown in the accompanying drawings, the ring-shaped detector 4 in the embodiment is fixed on a detector support 19; the detector support 19 is fixed on a fixed support frame 18; and the fixed support frame 18 is fixed on the channel steel 22. Figure 3 Preferably, as shown in the accompanying drawings, the plane detector 5 in the embodiment is fixed on a plane detector support 6; the plane detector support 6 is fixed on the fixed support frame 18; and the fixed support frame 18 is fixed on the channel steel 22.

[0037] Figure 1 Preferably, as shown in the accompanying drawings, the plane detector 5 in the embodiment is fixed on a plane detector support 6; the plane detector support 6 is fixed on the fixed support frame 18; and the fixed support frame 18 is fixed on the channel steel 22.

[0038] Preferably, as shown in the accompanying drawings, the plane detector 5 in the embodiment is fixed on a plane detector support 6; the plane detector support 6 is fixed on the fixed support frame 18; and the fixed support frame 18 is fixed on the channel steel 22. Figure 1 ​​As shown, the plane detector 5 is slidingly connected with a first optical axis 6, and the first optical axis 6 is fixedly connected with a translation plate 7 through an optical axis support 16; one side of the translation plate 7 is fixedly connected with the optical axis support 16, and the other side is fixedly connected with an optical axis box slide 9 at the upper portion and a nut seat 12 at the lower portion, and the nut seat 12 is installed with a nut 14; the optical axis box slide 9 is sleeved with a second optical axis 8, and the second optical axis 8 is fixed to a bed body 10 through another optical axis support 16; the nut seat 12 is in matched connection with a lead screw 15 through the nut 14, and the lead screw 15 is fixed to the bed body 10 through a lead screw support seat 11; and the bed body 10 is fixed on the channel steel 22.

[0039] As shown in the drawings, Figure 2 As shown in the drawings, the inner bottom of the shell 17 is provided with a plurality of connecting joints 23, and two connecting joints 23 are preferably used in the embodiment; the bottom surface of the four surfaces of the connecting joint 23 facing the inner side of the shell 17 is attached to the bottom of the shell 17, and the other three surfaces are respectively attached to the inside of the channel steel 22. The connecting joint 23 is made of the same aluminum alloy material as the shell 17. The connecting joint 23 is an aluminum alloy block with a bottom surface that can be attached to the bottom of the shell 17. The two connecting joints 23 in the embodiment are respectively fixed at both ends of the channel steel 22, one surface of the connecting joint 23 facing the end cover is flush with the edge of the channel steel 22, a plurality of mounting holes are formed on the channel steel 22, and mounting holes are also formed on the connecting joint 23. When mounting, the mounting holes of the connecting joint 23 are aligned with the corresponding mounting holes on the channel steel 22, and then fixed by using bolts, so as to ensure that a firm connecting structure is formed between the channel steel and the shell. The contact plane of the bolt is provided with a soft metal gasket, and sealing glue is applied to the threaded part to enhance the sealing performance and fastening effect.

[0040] As shown in the drawings, Figure 4 As shown in the drawings, the two ends of the shell 17 are respectively provided with a bending portion, and a shoulder is formed on the inner and outer sides of the shell, and a protrusion is added, so that it is more difficult for dust and liquid to flow to the inside, and the sealing effect is better. The front end cover 21 and the rear end cover 13 are in contact with the inner and outer sides of the shell 17, and epoxy resin mortar is applied to the contact positions of the shell 17, the front end cover 21 and the rear end cover 13. When the front end cover 21 and the rear end cover 13 are installed on the shell 17, they are in contact with the edge of the shell 17 and the shoulder of the inner and outer sides, and sealing rings are installed at the contact positions. The sealing ring utilizes the lip of the leather cup to contact the surface pressure, and the sealing effect is achieved by cutting off the leakage gap, which can be used for liquid sealing and dust prevention.

[0041] As shown in the drawings, Figures 5 to 6The utility model discloses a structure schematic drawing of the clamping claw 24 installed in the pipeline passageway of the front end cover 21 of the portable laser particle size instrument. The clamping claw 24 comprises a clamping claw 24-3, a gasket 24-4 and a clamping nut 24-5 are sequentially installed on one side of the clamping claw 24-3 in the laser particle size instrument, a clamping sealing ring 24-2 and a pressing head 24-1 are sequentially installed on the other side of the clamping claw 24-3. When using, the clamping claw 24-3 is placed in the pipeline passageway of the front end cover 21, the required pipeline is passed through the clamping claw 24-3, then the clamping claw 24-3 is fixed on the pipeline passageway of the front end cover 21 by using the clamping nut 24-5, the gasket 24-4 is placed between the clamping nut 24-5 and the clamping claw 24-3; after the clamping sealing ring 24-2 is installed on the side of the clamping claw 24-3 outside the laser particle size instrument, the pipeline is pressed by using the pressing head 24-2, the gap between the clamping claw 24-3, the clamping sealing ring 24-2, the pressing head 24-1 and the pipeline is eliminated, so that the sealing effect is achieved. After the clamping process is finished, epoxy resin mastic is injected into the connecting part, liquid and dust are difficult to flow in the gap, and secondary sealing is completed.

[0042] Preferably, one of the pipeline passageways on the front end cover 21 corresponds to the position of the lens barrel 1, and the pipeline passageway is used for installing the fiber-coupled laser; the remaining pipeline passageways are used for passing through cables or medium pipes, the cables are used for connecting detectors, and the medium pipes are two and are connected with the medium inlet 3-1 and the medium outlet 3-2 of the sample window 3 respectively.

Claims

1. A portable laser particle size analyzer, characterized in that, Includes an outer shell (17), on which a channel steel (22) is installed as the bottom; a front cover (21) is installed on one side of the outer shell (17), and a rear cover (13) is installed on the other side of the outer shell; several pipe channels are opened on the front cover (21), and clamping claws (24) are installed in the pipe channels; a lens barrel (1) is installed on the channel steel (22) near the front cover (21), and a sample window (3) and a detector are also installed on the channel steel (22); the sample window (3) is installed behind the lens barrel (1), and the detector is installed behind the sample window (3).

2. The portable laser particle size analyzer according to claim 1, characterized in that, The outer shell (17) has bends at both ends, thereby forming shoulders on the inner and outer sides of the outer shell. The front cover (21) and the rear cover (13) are in contact with the inner and outer sides of the outer shell (17).

3. A portable laser particle size analyzer according to claim 2, characterized in that, When the front cover (21) and the rear cover (13) are installed on the outer shell (17), they are in contact with the edge of the outer shell (17) and the shoulders on both the inner and outer sides, and sealing rings are installed at the contact points.

4. A portable laser particle size analyzer according to claim 1, characterized in that, The lens barrel (1) is fixedly installed on the channel steel (22) at the bottom of the outer shell (17) by the lens barrel support (2) and the lens barrel support seat (20). The lens barrel (1) is connected to the lens barrel support (2), the lens barrel support (2) is connected to the lens barrel support seat (20), and the lens barrel support seat (20) is fixedly installed on the channel steel (22).

5. A portable laser particle size analyzer according to claim 1, characterized in that, The sample window (3) is directly fixed on the channel steel (22), and the sample window (3) is provided with a medium inlet (3-1) and a medium outlet (3-2).

6. A portable laser particle size analyzer according to claim 1, characterized in that, The detector includes a ring detector (4) and a plane detector (5). The ring detector (4) is installed behind the sample window (3), and the plane detector (5) is installed behind the ring detector (4).

7. A portable laser particle size analyzer according to claim 6, characterized in that, The ring detector (4) is fixed on the detector bracket (19), the detector bracket (19) is fixed on the fixed support frame (18), and the fixed support frame (18) is fixed on the channel steel (22).

8. A portable laser particle size analyzer according to claim 6, characterized in that, The planar detector (5) is slidably connected to a first optical axis (6), and the first optical axis (6) is fixedly connected to a translation plate (7) through an optical axis support (16); the translation plate (7) is fixed with an optical axis support (16) on one side, and an optical axis box-type slider (9) is fixed on the upper part of the other side, and a nut seat (12) is fixed on the lower part, with a nut (14) installed on the nut seat (12); the optical axis box-type slider (9) is sleeved with a second optical axis (8), and the second optical axis (8) is fixed to the bed (10) through another optical axis support (16); the nut seat (12) and the nut (14) are connected to a lead screw (15), and the lead screw (15) is fixed to the bed (10) through a lead screw support seat (11); the bed (10) is fixed on a channel steel (22).

9. A portable laser particle size analyzer according to claim 1, characterized in that, The clamping jaw (24) includes a clamping jaw (24-3). On one side of the clamping jaw (24-3) inside the laser particle size analyzer, a washer (24-4) and a clamping nut (24-5) are installed in sequence. On the other side of the clamping jaw (24-3), a clamping sealing ring (24-2) and a clamping head (24-1) are installed in sequence.

10. A portable laser particle size analyzer according to claim 1, characterized in that, The outer shell (17) is cylindrical in shape. There is a support base on the bottom of the outer shell (17). Several connecting joints (23) are provided on the bottom of the inner side of the outer shell (17). The bottom surface of the four sides of the connecting joint (23) facing the inner side of the outer shell (17) is in contact with the bottom of the outer shell (17), and the other three sides are in contact with the inside of the channel steel (22).

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