CN211205957U - Multi-connected electromagnetic control type visual mashing device for coal body firmness coefficient measurement - Google Patents
Multi-connected electromagnetic control type visual mashing device for coal body firmness coefficient measurement Download PDFInfo
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- CN211205957U CN211205957U CN201922119259.9U CN201922119259U CN211205957U CN 211205957 U CN211205957 U CN 211205957U CN 201922119259 U CN201922119259 U CN 201922119259U CN 211205957 U CN211205957 U CN 211205957U
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Abstract
The utility model discloses a visual coal body tightness coefficient survey of many electromagnetic control formula is with smashing device to pieces, including the control mechanism that is used for controlling the weight to rise and fall in a sample section of thick bamboo and the appearance case that holds that is used for removing sample section of thick bamboo base position, the quantity of a sample section of thick bamboo is a plurality of, and the quantity of a sample section of thick bamboo base is a plurality of, and the lower extreme of a sample section of thick bamboo is provided with first semicircular arc board, and the upper end of a sample section of thick bamboo base is provided with first semicircular arc board complex second semicircular arc board. The utility model discloses a set up a plurality of test units of a plurality of sample section of thick bamboos and a plurality of sample section of thick bamboo base constitution to through rise and fall of electromagnetic chuck control weight, replace the test method that current only used a test unit work with the method of a plurality of test unit work together, reduced the operation number of times of smashing the sample to pieces when the coal body firmness coefficient determination is experimental, improved test efficiency, reduced the load of experimenter repetitive labor.
Description
Technical Field
The utility model belongs to the technical field of coal body firmness coefficient measurement, concretely relates to visual coal body firmness coefficient measurement of many electromagnetic control formula is with smashing device to pieces more.
Background
Coal and gas outburst is an extremely complex gas dynamic phenomenon occurring in a coal mine, and brings a serious threat to the safety production of the coal mine, and is a result of the comprehensive action of the ground stress, the gas and the physical and mechanical properties of the coal, the ground stress and the gas pressure are dynamic factors, the anti-damage capability of the coal is a resistance factor for outburst occurrence, and the resistance factor is mainly related to parameters such as the mechanical strength, the cracks, the coal body structure and the like of the coal. In the outburst coal seam, measurement of mechanical parameters such as the strength of coal is complicated, and measurement of the firmness coefficient of coal is simple, so the comprehensive reflection of the coal body fracture resistance is generally performed by using the firmness coefficient of the coal body. Since the risk of outburst is increased as the coal body firmness coefficient is decreased, the coal body firmness coefficient is one of the prediction indexes of the risk of coal seam outburst. In daily prediction work, the firmness coefficient of the coal body, the drilling cutting gas desorption index and the gas emission initial speed multi-index are combined together, the outburst risk of the working face is comprehensively judged, the outburst leading factors are reflected more comprehensively, and the accuracy of outburst prediction can be improved.
However, the coal body firmness factor is generally measured by the drop weight method in a laboratory, but when the coal body firmness factor is measured in the laboratory, there are several problems as follows: 1. when the heavy hammer impacts the coal body, the coal ash flies everywhere and easily enters the respiratory tract, which affects the health of the body; 2. when the hammer is dropped, the height of the heavy hammer may not be the specified height, the hammer is dropped, or the heavy hammer rubs with the inner wall of the sample cylinder, so that the hammer falls freely, and a handle fixedly connected to the heavy hammer falls along with the heavy hammer, so that a quality error is generated, and the accuracy of measurement is influenced; 3. the drop hammer method has more procedures, including coal sampling, weighing, mashing, screening and metering, and has the disadvantages of long occupied time, pure manual operation, low efficiency and high labor intensity. Therefore, a new mashing device for coal firmness factor determination is required to simplify the test procedure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem lie in to above-mentioned prior art not enough, a visual coal body firmness coefficient of many online electromagnetic control formula survey is with smashing device to pieces is provided, a structure is simple, and reasonable design, therefore, the clothes hanger is strong in practicability, constitute a plurality of test units through setting up a plurality of sample section of thick bamboo and a plurality of sample section of thick bamboo bases, and rise and fall through electromagnetic chuck control weight, replace the current test method that only uses a test unit work with the method of a plurality of test unit work together, impact sample's when having reduced coal body firmness coefficient survey experiment repetition number of times, the efficiency of the test is improved, the load of tester repetitive labor has been reduced.
In order to solve the technical problem, the utility model discloses a technical scheme is: the visual coal body tightness coefficient of many online electromagnetic control formula is surveyed and is smashed device, its characterized in that: the device comprises a control mechanism for controlling the lifting of a heavy hammer in a sample cylinder and a sample bearing box for moving the position of a sample cylinder base, wherein a plurality of sample cylinders are arranged, a plurality of sample cylinder bases are arranged, a first semicircular arc plate is arranged at the lower end of each sample cylinder, and a second semicircular arc plate matched with the first semicircular arc plate is arranged at the upper end of the sample cylinder base;
the control mechanism comprises a motor and a plurality of gear mechanisms, the gear mechanisms are all connected with the motor through transmission shafts, each gear mechanism comprises a gear and a U-shaped connecting rod matched with the gear, a rack meshed with the gear is arranged on one side, close to the vertical rod of the gear, of each U-shaped connecting rod, the vertical rod, far away from the gear, of each U-shaped connecting rod extends into the sample cylinder, and an electromagnetic chuck matched with a heavy hammer is arranged at one end, far away from the gear, of each U-shaped connecting rod;
the sample containing box comprises a drawer outer frame and a drawer box in sliding fit with the drawer outer frame, the drawer outer frame comprises a top plate and a bottom plate, a plurality of grooves are formed in one side, away from the control mechanism, of the top plate, the grooves, the gear mechanisms, the sample cylinders and the sample cylinder bases are equal in number and correspond to one another, sliding rails in sliding fit with the drawer box are arranged on the bottom plate, the top plate is matched with the drawer box through a lock catch, a limiting groove matched with the sample cylinder bases is formed in the bottom plate of the drawer box, the first semicircular arc plate penetrates through the grooves and extends into the sample containing box, and the second semicircular arc plate penetrates through the grooves and extends out of the sample containing box; the sample cylinder is a transparent sample cylinder, and the sample cylinder base is a transparent sample cylinder base.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: and a limiting rod matched with the gear is arranged at the end part of the vertical rod of the U-shaped connecting rod, which is close to the gear.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: the number of the sample cylinder, the sample cylinder base and the gear mechanisms is 5N, N is a positive integer and 1-3 is taken by N.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: the first semicircular arc plate and the second semicircular arc plate can be spliced into a cylindrical protection cylinder.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: the inner diameters of the sample cylinder and the sample cylinder base are the same, and the diameter of the U-shaped connecting rod, the diameter of the electromagnetic chuck and the diameter of the heavy hammer are all smaller than the inner diameter of the sample cylinder.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: the gear, the U-shaped connecting rod, the rod section matched with the gear, the transmission shaft and the motor are all arranged in the motor box, and the sample cylinder is fixed on the outer wall of the motor box through sample cylinder pliers.
Foretell visual coal body of many online electromagnetic control formula is firm coefficient measurement with smashing device, its characterized in that: and a handle is arranged on one side of the drawer box, which is far away from the control mechanism.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a set up a plurality of test units of a plurality of sample section of thick bamboos and a plurality of sample section of thick bamboo base constitution, replace the test method that current only used a test unit work with the method of a plurality of test unit work together, the impact sample number of times of repetition when having reduced coal body tightness coefficient determination test has improved test efficiency, has reduced the load of experimenter repetitive labor.
2. The utility model discloses a set up first semicircle board and second semicircle board, first semicircle board and second semicircle board can splice into a cylindrical protection section of thick bamboo when the drawer box is closed, the spill of buggy in the test process can be prevented to a cylindrical protection section of thick bamboo, and the buggy of being convenient for falls back, has reduced experimental error, has guaranteed experimental quality.
3. The utility model discloses a set up electromagnet, electromagnet adsorbs the weight when switching on, and during the outage, the weight free fall accomplishes a strike, has avoided current test device to adopt iron wire or straight-bar control weight to play the influence of falling to the weight free fall when falling, has improved experimental accuracy, has reduced experimental error.
4. The utility model discloses a set up a plurality of gears of motor simultaneous control, the gear has avoided the operation step that the tester needs manual control weight to reciprocate through the rack drive U type connecting rod lift, has reduced tester's work load, has improved test efficiency.
5. The utility model discloses a set up the spacing groove, make appearance section of thick bamboo base and drawer box cooperation to set up the hasp in roof and drawer box complex position, guarantee among the test process appearance section of thick bamboo base and drawer box and do not rock the displacement, make the weight can normally fall into in the appearance section of thick bamboo base and not rub with appearance section of thick bamboo base inner wall is incomplete, reasonable in design has guaranteed experimental quality and accuracy.
6. The utility model discloses a transparent plastic steel material preparation transparent appearance section of thick bamboo and transparent appearance section of thick bamboo base realize that the coal sample is placed, the weight falls highly and the weight falls the visualization on route, guarantees that the testing personnel has improved experimental accuracy to the real-time supervision of device.
To sum up, the utility model discloses simple structure, reasonable in design, the practicality is strong, constitutes a plurality of test units through setting up a plurality of appearance section of thick bamboo and a plurality of appearance section of thick bamboo bases to through rise and fall of electromagnetic chuck control weight, replace the test method that current only used a test unit work with the method of a plurality of test unit work together, impact sample's repetition number when having reduced coal body tightness coefficient determination test has improved test efficiency, has reduced the load of experimenter repetitive labor.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the drawer cabinet of fig. 1 shown in an unreleased state.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a top view of the drawer of fig. 1 when the drawer is pulled open.
Fig. 5 is a sectional view B-B of fig. 4.
Fig. 6 is a schematic view of the connection relationship between the sample cylinder and the first semicircular arc plate.
Fig. 7 is the connection relationship diagram of the sample cylinder base and the second semicircular arc plate of the present invention.
Description of reference numerals:
1-a motor box; 2-sample bearing box; 3-a gear;
4-U-shaped connecting rods; 5-a rack; 6-a limiting rod;
7-a transmission shaft; 8-sample cylinder clamp; 9-an electromagnetic chuck;
10-sample cylinder; 11-a first semicircular arc plate; 12-a cartridge base;
13-a second semicircular arc plate; 14-a top plate; 15-a base plate;
16-a drawer box; 17-a slide rail; 18-a handle;
19-locking; 20-weight dropper; 21-a motor;
22-a limiting groove; 23-groove.
Detailed Description
As shown in fig. 1 to 7, the present invention includes a control mechanism for controlling the rising and falling of the weight 20 in the sample cylinder 10 and a sample-holding box 2 for moving the position of the sample cylinder base 12, the number of the sample cylinders 10 is plural, the number of the sample cylinder bases 12 is plural, the lower end of the sample cylinder 10 is provided with a first semicircular arc plate 11, the upper end of the sample cylinder base 12 is provided with a second semicircular arc plate 13 matching with the first semicircular arc plate 11;
the control mechanism comprises a motor 21 and a plurality of gear mechanisms, the gear mechanisms are all connected with the motor 21 through transmission shafts 7, each gear mechanism comprises a gear 3 and a U-shaped connecting rod 4 matched with the gear 3, a rack 5 meshed with the gear 3 is arranged on one side, close to the vertical rod of the gear 3, of the U-shaped connecting rod 4, the vertical rod, far away from the gear 3, of the U-shaped connecting rod 4 extends into the sample cylinder 10, and an electromagnetic chuck 9 matched with a heavy hammer 20 is arranged at one end, far away from the gear 3, of the U-shaped connecting rod 4;
the sample bearing box 2 comprises a drawer outer frame and a drawer box 16 in sliding fit with the drawer outer frame, the drawer outer frame comprises a top plate 14 and a bottom plate 15, one side, away from the control mechanism, of the top plate 14 is provided with a plurality of grooves 23, the gear mechanisms, the sample cylinders 10 and the sample cylinder bases 12 are equal in number and correspond to one another, the bottom plate 15 is provided with slide rails 17 in sliding fit with the drawer box 16, the top plate 14 is matched with the drawer box 16 through a lock catch 19, the bottom plate of the drawer box 16 is provided with limiting grooves 22 matched with the sample cylinder bases 12, the first semicircular arc plate 11 penetrates through the grooves 23 and extends into the sample bearing box 2, and the second semicircular arc plate 13 penetrates through the grooves 23 and extends out of the sample bearing box 2; the sample cylinder 10 is a transparent sample cylinder, and the sample cylinder base 12 is a transparent sample cylinder base.
It should be noted that, a plurality of sample cylinders 10 and a plurality of sample cylinder bases 12 are arranged to form a plurality of test units, and a method that a plurality of test units work together is used to replace the existing test method that only one test unit works, so that the number of times of repeated impact on a sample during a coal body firmness coefficient measurement test is reduced, the test efficiency is improved, and the load of repeated labor of a tester is reduced;
by arranging the first semicircular plate 11 and the second semicircular plate 13, the first semicircular plate 11 and the second semicircular plate 13 can be spliced into a cylindrical protection cylinder when the drawer box 16 is closed, the cylindrical protection cylinder can prevent coal dust from splashing in the test process, the coal dust can fall back conveniently, the test error is reduced, and the test quality is ensured;
by arranging the electromagnetic chuck 9, the weight 20 is adsorbed when the electromagnetic chuck 9 is powered on, and the weight 20 falls freely when the power is off, so that one-time impact is completed, the influence of the existing testing device on the free fall of the weight 20 when the weight 20 is controlled by an iron wire or a straight rod to lift is avoided, the testing accuracy is improved, and the testing error is reduced;
the motor 21 is arranged to control the gears 3 simultaneously, the gears 3 drive the U-shaped connecting rod 4 to ascend and descend through the rack 5, so that the operation step that a tester needs to manually control the heavy hammer 20 to move up and down is avoided, the workload of the tester is reduced, and the test efficiency is improved;
by arranging the limiting groove 22, the sample cylinder base 12 is matched with the drawer box 16, and the lock catch 19 is arranged at the position where the top plate 14 is matched with the drawer box 16, so that the sample cylinder base 12 and the drawer box 16 do not shake and move in the test process, the heavy hammer 20 can normally fall into the sample cylinder base 12 and does not have residual friction with the inner wall of the sample cylinder base 12, the design is reasonable, and the test quality and accuracy are ensured;
by arranging the slide rail 17, the drawer box 16 can be easily pulled out together with a plurality of sample cylinder bases 12, so that the working load of a tester is reduced;
it should be noted that, the transparent sample cylinder and the transparent sample cylinder base are made of transparent plastic steel materials, so that visualization of coal sample placement, falling height of the heavy hammer 20 and falling path of the heavy hammer 20 is realized, real-time monitoring of a tester on the device is ensured, and test accuracy is improved.
In this embodiment, a limiting rod 6 matched with the gear 3 is arranged at the end part of the upright rod of the U-shaped connecting rod 4 close to the gear 3.
It should be noted that the gear 3 continuously drives the U-shaped connecting rod 4 to ascend until the limiting rod 6 abuts against the gear 3, at this time, the weight 20 reaches the elevation, the gear 3 stops rotating, the height when the electromagnetic chuck 9 is powered off and the weight 20 falls down is more accurate by arranging the limiting rod 6, the original method for manually judging the position of the weight is replaced, repeated observation on whether the weight 20 is in place is not needed, the accuracy of the test is improved, and meanwhile, the detection efficiency is improved.
In this embodiment, the number of the sample cylinder 10, the sample cylinder base 12 and the gear mechanism is 5N, N is a positive integer and N is 1 to 3.
It should be noted that, in the determination method of the national standard, the coal amount sieved once needs to be sequentially impacted five times, the device combines 5N sample cylinders 10, 5N sample cylinder bases 12 and 5N gear mechanisms, and the coal amount obtained by 5N times of impact in the prior art can be obtained by using the device for one time of impact, so that the test time is greatly saved, and the test efficiency is improved.
In this embodiment, the first semicircular plate 11 and the second semicircular plate 13 may be spliced into a cylindrical protection cylinder.
In this embodiment, the sample cylinder 10 and the sample cylinder base 12 have the same inner diameter, and the diameter of the U-shaped link 4, the diameter of the electromagnetic chuck 9, and the diameter of the weight 20 are all smaller than the inner diameter of the sample cylinder 10.
In this embodiment, the gear 3, the rod section of the U-shaped connecting rod 4 and the gear 3, the transmission shaft 7 and the motor 21 are all arranged in the motor case 1, and the sample cylinder 10 is fixed on the outer wall of the motor case 1 through the sample cylinder clamp 8.
In this embodiment, a handle 18 is provided on a side of the drawer box 16 remote from the control mechanism.
When the utility model is used, the lock catch 19 is opened, the drawer box 16 is pulled open through the handle 18, coal samples are placed in the sample cylinder bases 12, then the drawer box 16 is closed, the lock catch 19 is closed, the device is powered on, the electromagnetic chuck 9 is powered on to adsorb the heavy hammer 20, the motor 21 drives the gear 3 to rotate, so that the U-shaped connecting rod 4 is driven to move upwards until the limiting rod 6 supports against the gear 3, the heavy hammer 20 reaches the elevation, and the gear 3 stops rotating; make electromagnet 9 lose the electricity, weight 20 drops to in appearance section of thick bamboo base 12, accomplishes the impact to the coal sample, opens drawer box 16 once more, takes out a plurality of appearance section of thick bamboo bases 12, then will strike many coal sample after and collect and carry out subsequent test operation, has simplified the test step, has saved test time, has improved test efficiency, has reduced the cost of labor.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. The visual coal body tightness coefficient of many online electromagnetic control formula is surveyed and is smashed device, its characterized in that: the device comprises a control mechanism for controlling the rising and falling of a heavy hammer (20) in a sample cylinder (10) and a sample bearing box (2) for moving the position of a sample cylinder base (12), wherein a plurality of sample cylinders (10) are provided, a plurality of sample cylinder bases (12) are provided, a first semicircular arc plate (11) is arranged at the lower end of each sample cylinder (10), and a second semicircular arc plate (13) matched with the first semicircular arc plate (11) is arranged at the upper end of each sample cylinder base (12);
the control mechanism comprises a motor (21) and a plurality of gear mechanisms, the gear mechanisms are connected with the motor (21) through transmission shafts (7), each gear mechanism comprises a gear (3) and a U-shaped connecting rod (4) matched with the gear (3), a rack (5) meshed with the gear (3) is arranged on one side, close to the vertical rod of the gear (3), of each U-shaped connecting rod (4), the vertical rod, far away from the gear (3), of each U-shaped connecting rod (4) extends into the sample cylinder (10), and an electromagnetic sucker (9) matched with the heavy hammer (20) is arranged at one end, far away from the gear (3), of each U-shaped connecting rod (4);
the sample bearing box (2) comprises a drawer outer frame and a drawer box (16) matched with the drawer outer frame in a sliding way, the drawer outer frame comprises a top plate (14) and a bottom plate (15), a plurality of grooves (23) are formed in one side, away from the control mechanism, of the top plate (14), the grooves (23), the gear mechanisms, the sample cylinders (10) and the sample cylinder bases (12) are equal in number and correspond to one another, a sliding rail (17) which is in sliding fit with the drawer box (16) is arranged on the bottom plate (15), the top plate (14) is matched with the drawer box (16) through a lock catch (19), a bottom plate of the drawer box (16) is provided with a limit groove (22) matched with the sample cylinder base (12), the first semicircular arc plate (11) penetrates through the groove (23) and extends into the sample bearing box (2), the second semicircular arc plate (13) penetrates through the groove (23) and extends out of the sample bearing box (2); the sample cylinder (10) is a transparent sample cylinder, and the sample cylinder base (12) is a transparent sample cylinder base.
2. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: and a limiting rod (6) matched with the gear (3) is arranged at the end part of the U-shaped connecting rod (4) close to the vertical rod of the gear (3).
3. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: the number of the sample cylinder (10), the sample cylinder base (12) and the gear mechanisms is 5N, N is a positive integer and 1-3 is taken by N.
4. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: the first semicircular arc plate (11) and the second semicircular arc plate (13) can be spliced into a cylindrical protection cylinder.
5. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: the inner diameters of the sample cylinder (10) and the sample cylinder base (12) are the same, and the diameter of the U-shaped connecting rod (4), the diameter of the electromagnetic chuck (9) and the diameter of the heavy hammer (20) are all smaller than the inner diameter of the sample cylinder (10).
6. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: gear (3), U type connecting rod (4) and gear (3) complex pole section, transmission shaft (7) and motor (21) all set up in motor case (1), and a appearance section of thick bamboo (10) are fixed on motor case (1) outer wall through appearance section of thick bamboo pincers (8).
7. A multiplex electromagnetic control type visual coal body firmness coefficient measuring mashing device according to claim 1, wherein: and a handle (18) is arranged on one side of the drawer box (16) far away from the control mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119259.9U CN211205957U (en) | 2019-11-30 | 2019-11-30 | Multi-connected electromagnetic control type visual mashing device for coal body firmness coefficient measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119259.9U CN211205957U (en) | 2019-11-30 | 2019-11-30 | Multi-connected electromagnetic control type visual mashing device for coal body firmness coefficient measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245023A (en) * | 2021-05-08 | 2021-08-13 | 中煤科工集团沈阳研究院有限公司 | Automatic experimental device and method for measuring coal firmness coefficient |
| CN113600267A (en) * | 2021-07-12 | 2021-11-05 | 河南理工大学 | Crushing device and crushing method for measuring firmness coefficient of coal |
-
2019
- 2019-11-30 CN CN201922119259.9U patent/CN211205957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245023A (en) * | 2021-05-08 | 2021-08-13 | 中煤科工集团沈阳研究院有限公司 | Automatic experimental device and method for measuring coal firmness coefficient |
| CN113600267A (en) * | 2021-07-12 | 2021-11-05 | 河南理工大学 | Crushing device and crushing method for measuring firmness coefficient of coal |
| CN113600267B (en) * | 2021-07-12 | 2023-09-26 | 河南理工大学 | Crushing device and crushing method for measuring firmness coefficient of coal |
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