CN216350148U - Automatic weighing device for trace coal samples - Google Patents

Abstract

The application discloses an automatic weighing device for trace coal samples, which comprises a crucible, a sample feeding mechanism, a blanking mechanism and a weighing mechanism, wherein the crucible is used for containing the coal samples; the sample feeding mechanism is used for accommodating the crucible and conveying the crucible to a preset position along a first direction; the blanking mechanism is provided with a blanking port, and the blanking port corresponds to the preset position; the weighing mechanism corresponds to the blanking port and is used for weighing the crucible; the lifting mechanism is arranged in a second direction perpendicular to the first direction and used for driving the sample conveying mechanism to move along the second direction so as to enable the crucible to fall on the weighing mechanism for weighing; this application has realized integration, the automation mechanized operation of crucible conveying, blanking and weighing, has high efficiency, intelligence and weighs accurate, the little advantage of error.

Description

Automatic weighing device for trace coal samples

Technical Field

The application relates to the technical field of coal quality chemical examination analysis, in particular to a trace coal sample automatic weighing device.

Background

In the field of traditional coal quality analysis, whether industrial analysis or elemental analysis, an analysis test coal sample is generally first manually weighed. The weight of the test coal sample was analyzed and weighed, varying from 0.05g, 0.2g to 1g, depending on the analytical items, with a deviation generally within 10%. The sample is weighed mostly in trace amount, and the repeatability is high, and it is loaded down with trivial details to become broken bits, needs to consume a large amount of time and energy.

With the continuous progress of the technology, the coal quality analysis begins to develop towards intellectualization, the automatic weighing of the analysis test coal sample is realized, the manpower is liberated, and great progress is made in the technology. However, due to the weighing of trace coal samples, the error of the weighing capacity of a general automatic weighing coal sample is large, and the fluctuation of the external environment vibration and the air convection on the reading of a high-precision balance (the general precision is one ten thousandth) is large.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an automatic weighing device for trace coal samples, which realizes automatic weighing of trace coal samples and has the advantages of high efficiency, intelligence, accurate weighing and small error; the technical scheme is as follows:

the automatic weighing device for the trace coal samples comprises a crucible, a sample feeding mechanism, a blanking mechanism and a weighing mechanism, wherein the crucible is used for containing the coal samples; the sample feeding mechanism is used for accommodating the crucible and conveying the crucible to a preset position along a first direction; the blanking mechanism is provided with a blanking port, and the blanking port corresponds to the preset position so as to blank materials into the crucible when the crucible is conveyed to the preset position through the sample conveying mechanism; the weighing mechanism corresponds to the blanking port and is used for weighing the crucible; and the lifting mechanism is connected with the sample conveying mechanism and used for driving the sample conveying mechanism to move along the second direction so as to enable the crucible to fall on the weighing mechanism for weighing.

For example, in the automatic weighing device for a trace coal sample provided in an embodiment, the sample feeding mechanism includes a cylinder, a cylinder push rod and a crucible support, the cylinder includes a motor and a cylinder sleeve, the cylinder push rod is sleeved in the cylinder sleeve, the cylinder push rod moves along the first direction under the driving of the motor, and the crucible support is connected to a free end of the cylinder push rod and used for containing the crucible and moves synchronously with the cylinder push rod.

For example, in the automatic weighing device for a trace amount of coal samples provided in one embodiment, the sample feeding mechanism further includes a supporting plate, a guide rail, a slider and a connecting plate, the supporting plate is located at one side of the cylinder and is arranged along the first direction, and a supporting column is arranged between the supporting plate and the cylinder sleeve to support the cylinder; the guide rail is positioned on the surface of the supporting plate facing the cylinder and arranged along the first direction, and the guide rail is parallel to the axial direction of the cylinder push rod; the slider with guide rail sliding connection, the connecting plate cover in the slider surface and with slider fixed connection, one side of connecting plate with the free end of cylinder push rod is connected, so that the cylinder push rod moves along the guide rail.

For example, in the automatic weighing device for a trace coal sample provided in an embodiment, the connecting plate includes a main plate, a side plate vertically connected to the main plate is disposed on one side of the main plate, the main plate is fixedly connected to the slider, the side plate is connected to a free end of the cylinder push rod, a bearing plate extending in the first direction is disposed on one side of the main plate away from the side plate, and the bearing plate is provided with the crucible holder.

For example, in the automatic weighing device for a trace amount of coal samples provided in one embodiment, the lifting mechanism is arranged on one side of the supporting plate away from the cylinder, the lifting mechanism and the feeding mechanism are connected into a whole, and the crucible held by the feeding mechanism is driven to move in the second direction by the movement of the lifting mechanism in the second direction.

For example, in one embodiment, the automatic weighing device for trace coal samples comprises a balance, a support rod perpendicular to the balance is arranged at the center of the balance, and the crucible moves along the second direction to contact the support rod for weighing.

For example, in the automatic weighing device for a trace amount of coal samples, a shock absorption mechanism is further included, and the shock absorption mechanism is connected to a side of the weighing mechanism, which is away from the blanking opening, and is used for bearing the weighing mechanism.

For example, in an automatic weighing apparatus for a trace amount of coal sample provided in an embodiment, the damping mechanism includes a first panel, a second panel, and a damping spring, the first panel is used for bearing the weighing mechanism, the second panel is located on a side of the first panel away from the weighing mechanism and is opposite to the first panel, and the damping spring is clamped between the first panel and the second panel and is used for filtering a minute vibration of the weighing mechanism.

For example, in an embodiment, the automatic weighing device for a trace amount of coal sample further includes a wind shielding mechanism, and the wind shielding mechanism includes a first wind shielding plate, a second wind shielding plate, a third wind shielding plate, and a fourth wind shielding plate, which are arranged around the automatic weighing device for a trace amount of coal sample.

For example, in the automatic weighing device for a trace amount of coal samples provided by one embodiment, when the crucible is at the preset position, the center of the crucible is located on the same straight line with the center of the discharge port and the center of the weighing mechanism.

The beneficial effect that the automatic weighing device of trace coal sample that some embodiments of this application provided brought does: the sample feeding mechanism is used for conveying the hollow crucible to the position under the blanking port along a first direction, namely the horizontal direction, so that the crucible is filled with the coal sample, drive crucible again through elevating system and remove along the second direction vertical direction promptly, make the crucible fall and weigh on weighing mechanism, the automatic weighing of coal sample has been realized, weigh to the analysis test coal sample through the manual work among the traditional art in this application, especially, the trace is weighed repeatedly loaded down with trivial details, the defect of inefficiency, this application has realized the crucible conveying, the integration of blanking and weighing, automated operation, it is high-efficient to have, intelligence and weigh accurately, the advantage that the error is little, realize the accurate of trace coal sample and weigh, improve the reliability that the coal sample was weighed, avoid external vibrations and air convection to cause to weigh the appearance deviation to the influence of balance reading, data accuracy when guaranteeing to weigh, thereby guarantee the experimental result data accuracy of coal quality analysis.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of an automatic weighing apparatus for a trace amount of coal according to the present application;

FIG. 2 is a schematic cross-sectional view of the automatic weighing device for trace coal samples according to the present application;

fig. 3 is a schematic perspective view of a sample transport mechanism according to the present application;

fig. 4 is a perspective view of the damping mechanism of the present application.

Reference numerals: 100-crucible, 200-sample feeding mechanism, 210-cylinder, 211-cylinder sleeve, 212-cylinder push rod, 220-pallet, 221-support column, 230-guide rail, 231-slide block, 240-connecting plate, 241-main plate, 242-side plate, 250-bearing plate, 251-crucible holder, 300-blanking mechanism, 310-blanking port, 400-weighing mechanism, 410-balance, 420-support rod, 500-lifting mechanism, 600-damping mechanism, 610-damping spring, 620-first panel, 630-second panel, 640-mounting foot, 700-wind shielding mechanism, 710-first wind shielding plate, 720-second wind shielding plate, 730-third wind shielding plate, 740-fourth wind shielding plate, X-first direction, y-second direction.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The application provides an automatic weighing device for a trace coal sample, which comprises a crucible 100, a sample feeding mechanism 200, a blanking mechanism 300 and a weighing mechanism 400, wherein the crucible 100 is used for containing the coal sample; the sample feeding mechanism 200 is used for accommodating the crucible 100 and conveying the crucible 100 to a preset position along a first direction X; the blanking mechanism 300 is provided with a blanking port 310, and the blanking port 310 corresponds to the preset position so as to blank the crucible 100 when the crucible 100 is conveyed to the preset position by the sample conveying mechanism 200; the weighing mechanism 400 corresponds to the blanking port 310 and is used for weighing the crucible 100; the lifting mechanism 500 is arranged in a second direction Y perpendicular to the first direction X, and the lifting mechanism 500 is connected to the sample feeding mechanism 200 and is configured to drive the sample feeding mechanism 200 to move along the second direction Y, so that the crucible 100 falls on the weighing mechanism 400 for weighing. According to the above-mentioned embodiment, this application is through sending a kind mechanism 200 with empty crucible 100 along first direction X promptly the horizontal direction carry blanking mouth 310 under, make splendid attire coal sample in the crucible 100, drive crucible 100 again through elevating system 500 and remove along second direction Y promptly vertical direction, make crucible 100 fall on weighing mechanism 400 and weigh, the automatic weighing of coal sample has been realized, weigh the experimental coal sample of analysis through the manual work among the traditional art is overcome in this application, especially, the defect that the trace is weighed is repeated loaded down with trivial details, inefficiency, the crucible conveying has been realized to this application, the integration of blanking and weighing, automated operation, and is high-efficient, intelligence and weigh accurately, the advantage that the error is little.

Specifically, when the automatic weighing device for the trace coal samples is used, firstly, a manipulator or a special clamp is used for placing an empty crucible on the sample feeding mechanism 200, and the sample feeding mechanism 200 drives the empty crucible to reach a preset position for feeding.

For example, in the automatic weighing device for a trace amount of coal sample provided in one embodiment, as shown in fig. 3, the sample feeding mechanism 200 includes a cylinder 210, a cylinder push rod 212, and a susceptor 251, the cylinder 210 includes a motor and a cylinder sleeve 211, the cylinder push rod 212 is sleeved in the cylinder sleeve 211, the cylinder push rod 212 moves along the first direction X under the driving of the motor, and the susceptor 251 is connected to a free end of the cylinder push rod 212 and is used for accommodating the crucible 100 and moving synchronously with the cylinder push rod 212. Wherein, crucible that needs when can placing each item test on the crucible holds in the palm 251 for connect the coal sample that falls from discharge gate 310 greatly, according to above-mentioned embodiment, this application send a sample mechanism 200 to make reciprocating linear motion along first direction X through using the drive of cylinder mechanism, accord with the demand of crucible parallel transport, and cylinder mechanism reliable operation, and actual operation is simple and convenient, can realize steady speed control, has low carbon, low cost, safe in utilization, reliability height, a lot of advantages such as long service life.

For example, in the automatic weighing device for a trace amount of coal sample according to one embodiment, as shown in fig. 3, the sample feeding mechanism 200 further includes a supporting plate 220, a guide rail 230, a slider 231, and a connecting plate 240, the supporting plate 220 is located at one side of the cylinder 210 and is disposed along the first direction X, and a supporting column 221 is disposed between the supporting plate 220 and the cylinder sleeve 211 to support the cylinder 210; the guide rail 230 is located on the surface of the supporting plate 220 facing the cylinder 210 and is arranged along the first direction X, and the guide rail 230 is parallel to the axial direction of the cylinder push rod 212; the sliding block 231 is slidably connected with the guide rail 230, the connecting plate 240 covers the surface of the sliding block 231 and is fixedly connected with the sliding block 231, and one side of the connecting plate 240 is connected with the free end of the cylinder push rod 212, so that the cylinder push rod 212 moves along the guide rail 230. According to the embodiment, the guide rail 230 is arranged in parallel with the axial direction of the cylinder push rod 212, and the free end of the cylinder push rod 212 moves synchronously with the sliding block 231 on the guide rail 230, so that the cylinder push rod 212 is driven by the motor to move more stably, the cylinder push rod 212 is prevented from shaking in the movement along the first direction X, the crucible 100 is prevented from shaking or falling, and the safety and the reliability of the operation of the device are improved.

For example, in the automatic weighing device for a trace amount of coal sample according to one embodiment, as shown in fig. 3, the connecting plate 240 includes a main plate 241, a side plate 242 perpendicularly connected to the main plate 241 is disposed on one side of the main plate 241, the main plate 241 is fixedly connected to the slider 231, the side plate 242 is connected to the free end of the cylinder push rod 212, a bearing plate 250 extending along the first direction X is disposed on one side of the main plate 241 away from the side plate 242, and the crucible holder 251 is disposed on the bearing plate 250. The main plate 241 is fixedly connected with the slider 231 through a screw, and the side plate 242 is fixedly connected with the free end of the cylinder push rod 212 through a screw.

Further, as shown in fig. 1 and 3, the bearing plate 250 is a hollow structure at the middle part, and the outer wall of the crucible support 251 is embedded into the hollow part at the middle part of the bearing plate 250, so that the bearing plate 250 clamps the crucible support 251, and the bottom surface of the crucible support 251 is exposed, so that the crucible support 251 is placed on the weighing mechanism 400 for weighing when the crucible 100 is weighed.

For example, in the automatic weighing apparatus for a trace amount of coal sample according to one embodiment, as shown in fig. 1-2, the lifting mechanism 500 is disposed on a side of the supporting plate 220 away from the cylinder 210, the lifting mechanism 500 is connected with the feeding mechanism 200 as a whole, and the crucible 100 placed on the feeding mechanism 200 is driven to move in the second direction Y by the movement of the lifting mechanism 500 in the second direction Y. According to the above embodiment, the lifting mechanism 500 and the feeding mechanism 200 are integrated, and the lifting mechanism 500 drives the feeding mechanism 200 to move in the vertical direction, so that the crucible 100 falls on the weighing mechanism 400 directly below the crucible for weighing.

For example, in the automatic weighing apparatus for a trace amount of coal sample provided in one embodiment, as shown in fig. 1 to 2, the weighing mechanism 400 includes a balance 410, a support rod 420 perpendicular to the balance 410 is provided at the center of the balance 410, and the crucible 100 moves in the second direction Y to contact the support rod 420 for weighing. Wherein, crucible holds in the palm the bottom surface of 251 and the free end contact of vaulting pole 420 to the realization is to weighing of crucible, according to above-mentioned embodiment, can conveniently take away from weighing mechanism 400 through elevating system 500 with crucible 100 and crucible support 251 after weighing to the crucible and finishing through setting up vaulting pole 420, and then conveniently weigh the operation next time, need not to move the crucible from the balance by hand.

For example, in the automatic weighing apparatus for a trace amount of coal sample provided in one embodiment, as shown in fig. 1-2, a shock absorbing mechanism 600 is further included, and the shock absorbing mechanism 600 is connected to a side of the weighing mechanism 400 facing away from the drop opening 310 and is used for carrying the weighing mechanism 400. According to the embodiment, the damping mechanism 600 is arranged below the weighing mechanism 400, so that the weighing mechanism 400 is prevented from vibrating due to vibration of the external environment, the balance reading is prevented from being influenced, the weighing deviation is avoided, and accurate weighing is realized.

For example, in the automatic weighing apparatus for a trace amount of coal sample according to one embodiment, as shown in fig. 4, the damping mechanism 600 includes a first panel 620, a second panel 630 and a damping spring 610, the first panel 620 is used for bearing the weighing mechanism 400, the second panel 630 is located on a side of the first panel 620 facing away from the weighing mechanism 400 and is disposed opposite to the first panel 620, and the damping spring 610 is interposed between the first panel 620 and the second panel 630 and is used for filtering a minute vibration of the weighing mechanism 400. Wherein, damping spring 610 includes three groups, three groups damping spring 610 is "Y" shape and arranges between first panel 620 and second panel 630 deviates from the surface four corners department of first panel 620 is equipped with installation foot 640, and damper 600 realizes fixed mounting through installation foot 640, according to above-mentioned embodiment, three groups of "Y" shape arrange damping spring 610 not only can realize the firm support of symmetry mechanism 400, but also can realize the regulation buffering of symmetry mechanism 400 all around each direction vibrations.

For example, in an embodiment, as shown in fig. 1, the automatic weighing apparatus for a trace amount of coal sample further includes a wind shielding mechanism 700, and the wind shielding mechanism 700 includes a first wind shielding plate 710, a second wind shielding plate 720, a third wind shielding plate 730, and a fourth wind shielding plate 740 surrounding the automatic weighing apparatus for a trace amount of coal sample. According to the embodiment, the wind shields are arranged around the automatic weighing device for the trace coal samples, so that the influence of air convection on the reading of the balance when the trace coal samples are weighed can be eliminated, and the weighing accuracy is improved.

For example, in the automatic weighing apparatus for a trace amount of coal sample provided in one embodiment, as shown in fig. 1 to 2, when the crucible 100 is at the preset position, the center of the crucible 100 is located on the same straight line with the center of the discharge hole 310 and the center of the weighing mechanism 400, that is: crucible 100 is located under discharge gate 310, and weighing mechanism 400 is located under crucible 100, realizes accurate blanking and accurate weighing.

Although embodiments of the present application have been disclosed for illustrative purposes, those skilled in the art will recognize that: various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (10)

1. The utility model provides a trace coal sample automatic weighing device which characterized in that includes:

the crucible is used for containing a coal sample;

the sample feeding mechanism is used for accommodating the crucible and conveying the crucible to a preset position along a first direction;

the blanking mechanism is provided with a blanking port, and the blanking port corresponds to the preset position so as to blank materials into the crucible when the crucible is conveyed to the preset position through the sample conveying mechanism; and

the weighing mechanism corresponds to the blanking port and is used for weighing the crucible;

and the lifting mechanism is connected with the sample conveying mechanism and used for driving the sample conveying mechanism to move along the second direction so as to enable the crucible to fall on the weighing mechanism for weighing.

2. The automatic weighing device for trace coal samples according to claim 1, wherein the sample feeding mechanism comprises:

the cylinder comprises a motor and a cylinder sleeve;

the air cylinder push rod is sleeved in the air cylinder sleeve and driven by the motor to move along the first direction; and

the crucible support is connected to the free end of the cylinder push rod and used for containing the crucible and moving synchronously with the cylinder push rod.

3. The automatic weighing device for trace coal samples according to claim 2, wherein the sample feeding mechanism further comprises:

the supporting plate is positioned on one side of the cylinder and arranged along the first direction, and a supporting column is arranged between the supporting plate and the cylinder sleeve to support the cylinder;

the guide rail is positioned on the surface, facing the cylinder, of the supporting plate and is arranged along the first direction, and the guide rail is parallel to the axial direction of the cylinder push rod;

the sliding block is connected with the guide rail in a sliding manner; and

and the connecting plate covers the surface of the sliding block and is fixedly connected with the sliding block, and one side of the connecting plate is connected with the free end of the cylinder push rod so that the cylinder push rod moves along the guide rail.

4. The automatic weighing device for the trace coal samples according to claim 3, wherein the connecting plate comprises a main plate, a side plate vertically connected with the main plate is arranged on one side of the main plate, the main plate is fixedly connected with the slide block, the side plate is connected with the free end of the cylinder push rod, a bearing plate extending along the first direction is arranged on one side of the main plate away from the side plate, and the crucible support is arranged on the bearing plate.

5. The automatic weighing device for the trace coal samples as claimed in claim 3, wherein the lifting mechanism is arranged on the side of the supporting plate away from the cylinder, the lifting mechanism and the sample feeding mechanism are connected into a whole, and the crucible held by the sample feeding mechanism is driven to move in the second direction by the movement of the lifting mechanism in the second direction.

6. The automatic trace coal sample weighing device according to claim 1, wherein the weighing mechanism comprises a balance, a support rod perpendicular to the balance is provided at the center of the balance, and the crucible moves in the second direction to contact the support rod for weighing.

7. The automatic weighing device for the trace coal samples according to claim 1, further comprising a shock absorption mechanism connected to one side of the weighing mechanism, which is away from the blanking port, for bearing the weighing mechanism.

8. The automatic weighing apparatus for trace coal samples according to claim 7, wherein the shock absorbing mechanism comprises:

a first panel for carrying the weighing mechanism;

the second panel is positioned on one side, away from the weighing mechanism, of the first panel and is arranged opposite to the first panel; and

and the damping spring is clamped between the first panel and the second panel and is used for filtering the micro vibration of the weighing mechanism.

9. The automatic micro-coal sample weighing device according to claim 1, further comprising a wind shielding mechanism, wherein the wind shielding mechanism comprises a first wind shield, a second wind shield, a third wind shield and a fourth wind shield which are arranged around the automatic micro-coal sample weighing device.

10. The automatic weighing device for the trace coal samples according to claim 1, wherein when the crucible is at the preset position, the center of the crucible is positioned on the same straight line with the center of the blanking port and the center of the weighing mechanism.

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