CN114769118A - A kind of coal screening equipment for coal mining - Google Patents

Abstract

The present application provides a coal screening equipment for coal mining, and relates to the technical field of coal screening equipment, including screening components and impact components. The screening assembly includes a housing, a screen plate, a limiting member and a collection box, and the impact assembly includes an elastic member, a punch, a driving member and a dial lever. In the present application, the elastic piece is moved by the dial lever to accumulate potential energy and the punch quickly impacts the sieve plate to form an impact effect on the sieve plate. Through the use of a funnel-shaped collection box, the problem of inconvenient turnover of the screened coal blocks is solved, and the effect of quick unloading and loading of the screened coal blocks is realized.

Description

A kind of coal screening equipment for coal mining

technical field

The present application relates to the technical field of coal screening equipment, in particular, to a coal screening equipment for coal mining.

Background technique

Screening is the operation of dividing mixtures of different particle sizes into various particle size levels through a perforated screen surface. , The screening work is mostly used in coal factories, mines and other factories. With the development of science and technology, these factories have higher and higher requirements for screening devices.

At present, in terms of coal production technology in the market, sometimes due to the different particle sizes of coal, it is necessary to screen it to distinguish its size. Generally, coal is placed on the filter screen, and the coal of the size people needs can be obtained through screening. However, sometimes too much material accumulates on the filter screen, which is easy to block the filter screen, resulting in insufficient screening.

In this regard, the Chinese patent application number CN202122360141.2 discloses a closed coal screening device. The solution mainly includes a bottom plate, and two fixed plates are fixedly connected to the upper surface of the bottom plate, and the two fixed plates are movably connected. There is a first rotating rod, a cam is fixedly connected to the circumferential outer wall of the first rotating rod, a motor is fixedly connected to the outer wall of one side of the fixed plate, and one end of the output shaft of the motor is fixed to the rotating rod through the fixed plate, and the two A fixed rod is fixedly connected between the two fixed plates, a filter screen is movably connected to the circumferential outer wall of the fixed rod, a support rod is fixedly connected between the two fixed plates, and the support rod is in contact with the filter screen, the two fixed The inner wall of one side of the plate is fixedly connected with a fixed block, and the upper surface of the fixed block is fixedly connected with a spring, and the spring is fixed with the filter screen. This design realizes the cooperation of the cam and the spring, and the motor drives the first rotating rod to rotate. The first rotating rod drives the cam to rotate. When the protruding part of the cam rotates to the top, it will lift the filter screen. The cam rotates until the protruding part faces downward, and the filter screen is reset by the elastic force of the spring, so that the filter screen moves up and down and vibrates the material. , to prevent the filter screen from being blocked due to too much material, to solve the problem of blockage caused by excessive material accumulation on the filter screen, and through the cooperation of the first missing gear and the second missing gear, the motor drives the first rotating rod to rotate, the first The rotating rod drives the first missing gear to rotate, the gear of the first missing gear rotates to mesh with the second missing gear, drives the second missing gear to rotate, the second missing gear drives the rotating rod to rotate, and the rotating rod drives the stopper plate to rotate, so that the The material in the discharge pipe enters the filter screen, so that the device performs periodic feeding, which can prevent the problem of excessive material accumulation. Finally, the screened coal blocks enter the first receiving box and the second receiving box respectively.

However, in the process of realizing the technical solutions in the embodiments of the present application, the inventor of the present application found that the above-mentioned technology at least has the following technical problems:

1. The key point of anti-clogging by vibration is that the impact force generated by vibration causes the coal blocks blocked in the filter screen to fall off. In the above technology, the cam is linked with the baffle plate, because the baffle plate is used to block the coal. It is impossible for the block to rotate quickly, so the cam speed is not enough, and the filter screen will move up and down at a slow speed against the cam, which cannot form a sufficient impact force, and the anti-clogging effect is poor;

2. Both the first receiving box and the second receiving box are fixed. After the coal lumps are collected, it is difficult to transport the coal lumps out of them conveniently, which affects the overall screening efficiency.

SUMMARY OF THE INVENTION

In order to overcome the existing deficiencies, the embodiment of the present application provides a coal screening equipment for coal mining, which can solve the above problems of insufficient shock force for anti-clogging and inconvenient transfer after receiving.

The technical solution adopted by the embodiments of the present application to solve the technical problem is: a coal screening device for coal mining, including a screening component and an impact component.

The screening assembly includes a casing, a sieve plate, a limiting member and a collection box, the limiting member is fixedly connected to the inner wall of the casing, one end of the sieve plate is hinged with the casing, and the other side of the sieve plate is hinged. One end is movably connected with the limiting piece, two collection boxes are provided, both of the collection boxes are fixedly connected to the housing, both of the collection boxes are arranged in a funnel shape, and the impact assembly It includes an elastic piece, a punch, a driving piece and a dial lever, the elastic piece is fixedly connected with the housing, the punch is fixedly connected with the elastic piece, and the driving piece is fixedly connected with the housing , the dial lever is rotatably connected with the housing, the dial lever is fixedly connected with the driving member, and the dial lever is movably connected with the elastic member.

In a specific embodiment, the limiting members are two support rods, both of which are fixedly connected to the inner wall of the housing, and the screen plates are respectively movable against the two support rods.

In a specific embodiment, the elastic member includes a sleeve, a spring and a pull rod, the sleeve is fixedly connected to the housing, the pull rod movably runs through the sleeve, and one end of the pull rod is connected to the casing. The punch is fixedly connected, the other end of the pull rod is movably connected with the dial lever, the spring is movably sleeved on the pull rod, and both ends of the spring are pressed against the punch and the sleeve respectively.

In a specific embodiment, the elastic member further includes a dust cover, the dust cover is movably sleeved on the spring and the pull rod, and the two ends of the dust cover are respectively connected with the punch and the pull rod. The sleeves are fixedly connected.

In a specific embodiment, the driving member includes a motor, a main gear A and a slave gear A, the motor is fixedly connected to the housing, and the main gear A is fixedly connected to the output end of the motor , the slave gear A is fixedly connected with the dial lever, and the main gear A meshes with the slave gear A.

In a specific embodiment, the screening assembly further includes a blocking member, each of the collection boxes is provided with one of the blocking members, and the blocking member movably blocks the through hole.

In a specific embodiment, the blocking member includes a door panel and an electric push rod, the door panel is hinged with the collection box, the door panel is movably blocked on the collection box, and one end of the electric push rod is It is hinged with the collection box, and the other end of the electric push rod is hinged with the door panel.

In a specific embodiment, the screening assembly further includes a support foot, and each of the four corners of the housing is fixedly connected with one of the support feet.

In a specific embodiment, the screening assembly further includes a throwing piece, the throwing piece includes a material pipe and a gate, the material pipe is fixedly connected with the housing, and the gate is movably blocked on the feed tube.

In a specific embodiment, the screening assembly further includes a transmission member, the transmission member includes a connecting rod, a main gear B and a slave gear B, the connecting rod is rotatably connected with the housing, the The connecting rod is fixedly connected with the output end of the motor, the main gear B is fixedly connected with the connecting rod, the slave gear B is fixedly connected with the gate, and the master gear B meshes with the slave gear B.

The advantages of the embodiments of the present application are:

1. Due to the use of a toggle lever, an elastic piece and a punch, the elastic piece is moved by the toggle lever to accumulate potential energy and the punch quickly impacts the sieve plate, forming an impact effect on the sieve plate. When the sieve plate is blocked by coal, the effect of full screening is realized.

2. Due to the use of a funnel-shaped collection box, the problem of inconvenient turnover of the screened coal blocks is solved, and the effect of quick unloading and loading of the screened coal blocks is realized.

Description of drawings

1 is a schematic structural diagram of a coal screening equipment for coal mining provided by an embodiment of the present application;

2 is a schematic structural diagram from an external perspective of the coal screening equipment for coal mining provided by the embodiment of the present application;

3 is a schematic structural diagram of the connection relationship between an elastic member and a dial lever provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a partially enlarged structure at A in FIG. 2 according to an embodiment of the present application;

Description of main reference signs:

100-screen assembly; 110-shell; 120-sieve plate; 130-limiting piece; 140-collection box; 150-blocking piece; 151-door plate; 152-electric push rod; 160-foot; ; 171- material pipe; 172- gate; 180- transmission part; 181- connecting rod; 182- master gear B; 183- slave gear B; 200- impact assembly; 210- elastic part; 211- sleeve; 212- spring 213-draw rod; 214-dust cover; 220-punch; 230-drive; 231-motor; 232-main gear A; 233-slave gear A;

Detailed ways

The technical solutions in the embodiments of the present application are to solve the problems that the above-mentioned sewage flocculation and sedimentation efficiency is relatively slow and the sewage treatment time after sedimentation is easily limited by the replacement time of the filter screen in the filter box. The general idea is as follows:

Example 1:

Please refer to FIGS. 1-4 , a coal screening equipment for coal mining, including a screening assembly 100 and an impact assembly 200 .

Among them, the impact assembly 200 adopts the wheel lever 240, the elastic member 210 and the punch 220, and the elastic member 210 is moved by the wheel lever 240 to accumulate potential energy, and the punch 220 quickly impacts the sieve plate 120 to form an impact on the sieve plate 120. As a result, the sieve plate 120 collides with the support rod, which solves the situation that the sieve plate 120 is blocked by coal lumps, and realizes the effect of sufficient screening. Because the screening assembly 100 adopts the funnel-shaped collection box 140, it solves the problem that the coal lumps after screening are not ineffective. The problem of convenient turnover realizes the effect of quick unloading and loading of the screened coal blocks.

Please continue to refer to FIG. 1 to FIG. 4 , the screening assembly 100 includes a housing 110 , a screen plate 120 , a limiting member 130 and a collection box 140 , and the limiting member 130 is fixedly connected to the inner wall of the housing 110 , so One end of the sieve plate 120 is hinged with the casing 110, and the other end of the sieve plate 120 is movably connected with the limiting member 130. There are two collection boxes 140, and both of the collection boxes 140 are connected to the limiter 130. The housing 110 is fixedly connected, the two collection boxes 140 are both funnel-shaped, and the impact assembly 200 includes an elastic member 210, a punch 220, a driving member 230 and a dial lever 240. The elastic member 210 is connected to the The casing 110 is fixedly connected, the punch 220 is fixedly connected to the elastic member 210 , the driving member 230 is fixedly connected to the casing 110 , and the dial lever 240 is rotatably connected to the casing 110 , the dial lever 240 is fixedly connected with the driving member 230 , and the dial lever 240 is movably connected with the elastic member 210 . In the initial state, one end of the screen plate 120 is hinged, the other end of the screen plate 120 is located in the limiting member 130, the punch 220 does not contact the screen plate 120, the driving member 230 drives the wheel lever 240 to rotate, and the wheel lever 240 contacts and toggles the elastic The energy is stored in the element 210. When the wheel lever 240 continues to rotate and leaves the elastic element 210, the elastic element 210 is quickly reset and stretched out, and the punch 220 is used to hit the sieve plate 120. Subsequently, the sieve plate 120 hits the limiting member 130 again due to the falling of gravity, and the impact force generated by the two impacts is strong, which can effectively promote the clogging of coal blocks in the sieve plate 120 to fall off. In this embodiment, a spacer is provided under the sieve plate 120 , is used to make the telescopic axis of the punch 220 perpendicular to the impact surface of the punch 220, so that the impact on the punch 220 and the elastic member 210 in other directions can be reduced as much as possible during the impact process, and the reliability of the elastic member 210 can be improved. The coal lumps of the two sizes are respectively dropped into the corresponding collection boxes 140, and the lower end of the collection box 140 is provided with a through hole.

Please refer to FIG. 1 and FIG. 3 , the limiting member 130 is two support rods, both of which are fixedly connected to the inner wall of the housing 110 , and the screen plate 120 is movably pressed against the two support rods respectively. The two support rods are located on the upper and lower sides of the sieve plate 120, respectively. Under normal conditions, the sieve plate 120 is placed on the support rod below, and after being hit by the punch 220, the sieve plate 120 bounces up and hits the support rod above. When the sieve plate 120 falls, it hits the lower support rod again. In this way, the elastic member 210 works once and generates two impacts, and the generated impact force is strong, which can effectively promote the clogging of coal blocks in the sieve plate 120 to fall off.

1 and 3, the elastic member 210 includes a sleeve 211, a spring 212 and a pull rod 213, the sleeve 211 is fixedly connected with the housing 110, and the pull rod 213 movably runs through the sleeve 211. One end of the pull rod 213 is fixedly connected to the punch 220, the other end of the pull rod 213 is movably connected to the dial lever 240, the spring 212 is movably sleeved on the pull rod 213, and both ends of the spring 212 Press against the punch 220 and the sleeve 211 respectively. The sleeve 211 is fixedly connected to the inner wall of the housing 110 through a bracket. In the initial state, the punch 220 is not in contact with the sieve plate 120. When the dial lever 240 contacts and presses the down lever 213, the spring 212 contracts and accumulates potential energy. With the rotation of the wheel lever 240, after the wheel lever 240 leaves the pull rod 213, the spring 212 quickly rebounds, pushes the punch 220 to cross its own reset line and then hits the sieve plate 120, so that the sieve plate 120 hits the two support rods successively, resulting in Two shocks.

Please refer to FIG. 3 , the elastic member 210 further includes a dust cover 214 , the dust cover 214 is movably sleeved on the spring 212 and the pull rod 213 , and the two ends of the dust cover 214 are respectively connected with the punch The head 220 and the sleeve 211 are fixedly connected. The space between the punch 220 and the sleeve 211 is exposed. When the coal is sifted, particles will float and splash, which will affect the operation of the spring 212. The corrugated dust cover 214 is used here to keep the sleeve 211 clean and improve the elasticity of the spring. 210 reliability.

Please continue to refer to FIG. 3 , the driving member 230 includes a motor 231 , a main gear A232 and a slave gear A233 , the motor 231 is fixedly connected to the housing 110 , and the main gear A232 is connected to the output end of the motor 231 . In a fixed connection, the slave gear A233 is fixedly connected with the dial lever 240 , and the main gear A232 is engaged with the slave gear A233 . The motor 231 drives the wheel lever 240 to rotate through the meshing of the main gear A232 and the slave gear A233, so that each rotation of the wheel lever 240 triggers the elastic member 210 once, resulting in two impacts.

Please refer to FIG. 1 and FIG. 4 , the screening assembly 100 further includes a blocking member 150 , each of the collection boxes 140 is provided with one of the blocking members 150 , and the blocking member 150 is movably blocked in the passageway. hole. The two collection boxes 140 correspond to the two types of coal blocks after screening, respectively. During the normal screening process, the blocking member 150 blocks the collection box 140, which can prevent dust from leaking out and keep the surrounding environment clean and tidy. 150 can realize the independent discharge work of two collection boxes 140.

Please refer to FIG. 4 , the blocking member 150 includes a door panel 151 and an electric push rod 152 , the door panel 151 is hinged with the collection box 140 , the door panel 151 is movably blocked on the collection box 140 , and the electric One end of the push rod 152 is hinged with the collection box 140 , and the other end of the electric push rod 152 is hinged with the door panel 151 . The lower end of the collection box 140 is provided with a channel, and the electric push rod 152 pushes the door panel 151 to block the channel to achieve the effect of automatic opening. There is sufficient torque and force angle to drive the door panel 151 to deflect.

Please refer to FIG. 2 and FIG. 4 , the screening assembly 100 further includes a support leg 160 , and each of the four corners of the housing 110 is fixedly connected with one of the support legs 160 . The feet 160 are used to support the whole device, so that the external carts and other containers can be placed under the collection box 140, and when the door panel 151 is opened, the materials can be easily unloaded and loaded into the truck.

Please refer to FIGS. 1 and 3 , the screening assembly 100 further includes a throwing piece 170 , the throwing piece 170 includes a material pipe 171 and a gate 172 , the material pipe 171 is fixedly connected with the housing 110 , and the gate 172 is movably blocked on the material pipe 171 . The gate 172 periodically opens and closes the material pipe 171 to achieve the effect of intermittent feeding, reducing the excessive feeding at one time and the accumulation of coal lumps on the sieve plate 120, which affects the screening effect.

3, the screening assembly 100 further includes a transmission member 180, the transmission member 180 includes a connecting rod 181, a main gear B182 and a slave gear B183, the connecting rod 181 is rotatably connected with the housing 110, The connecting rod 181 is fixedly connected with the output end of the motor 231, the main gear B182 is fixedly connected with the connecting rod 181, the slave gear B183 is fixedly connected with the gate 172, the master gear B182 and all The said slave gear B183 is engaged. The motor 231 drives the main gear B182 to rotate through the connecting rod 181, and then drives the secondary gear B183 to rotate, so that the gate 172 is continuously deflected, resulting in the effect of periodic feeding. Here, a motor 231 is used to drive the impact and periodic feeding at the same time, which can reduce the equipment cost, and improve the utilization rate of the motor 231.

When used in this application: the motor 231 drives the main gear B182 to rotate through the connecting rod 181, and then drives the secondary gear B183 to rotate, thereby driving the gate 172 to continuously deflect, resulting in the effect of periodic feeding, reducing one-time excessive feeding and coal accumulation on the sieve plate 120, the screening effect is affected, and at the same time, the motor 231 drives the dial lever 240 to rotate through the meshing of the main gear A232 and the slave gear A233, so that the dial lever 240 contacts and presses the pull rod 213, and the spring 212 contracts and accumulates potential energy. After the rotation of the rod 240, after the wheel lever 240 leaves the pull rod 213, the spring 212 rebounds quickly, pushes the punch 220 to cross its reset line and then hits the screen plate 120, so that the screen plate 120 hits the two support rods successively, resulting in two shocks , and the generated impact force is strong, which can effectively promote the blockage of coal blocks in the sieve plate 120 to fall off. The two types of coal blocks screened by the sieve plate 120 fall into the corresponding collection boxes 140 respectively, and the door plate 151 blocks the collection boxes. 140, which can prevent the leakage of dust and keep the surrounding environment clean and tidy. When it is necessary to unload the material, place the external cart and other containers under the collection box 140, and the electric push rod retracts to open the door panel 151, and the coal lumps fall into the container. .

To sum up, the elastic member 210 is moved by the toggle lever 240 to accumulate potential energy and the punch 220 rapidly impacts the sieve plate 120 to form an impact effect on the sieve plate 120. In the case of blockage, the effect of full screening is achieved. By using the funnel-shaped collection box 140, the problem of inconvenient turnover of the screened coal blocks is solved, and the effect of quick unloading and loading of the screened coal blocks is realized.

It should be noted that the specific models and specifications of the electric push rod 152, the main gear B, the slave gear B, the spring 212, the dust cover 214, the motor 231, the main gear A232 and the slave gear A233 need to be selected according to the actual specifications of the device. The specific type selection calculation method adopts the existing technology in the art, so it will not be described in detail.

The power supply of the electric push rod 152 and the motor 231 and the principles thereof are clear to those skilled in the art, and will not be described in detail here.

Finally, it should be noted that: obviously, the above-mentioned embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. However, the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (10)

1. a kind of coal screening equipment for coal mining, is characterized in that, comprises The screening assembly includes a casing, a sieve plate, a limiting member and a collection box, the limiting member is fixedly connected with the inner wall of the casing, one end of the sieve plate is hinged with the casing, and the other end of the sieve plate is hinged is movably connected with the limiting piece, the collection boxes are provided with two, the two collection boxes are fixedly connected with the housing, and the two collection boxes are arranged in a funnel shape; The impact assembly includes an elastic piece, a punch, a driving piece and a dial lever, the elastic piece is fixedly connected with the housing, the punch is fixedly connected with the elastic piece, and the driving piece is fixed with the housing The body is fixedly connected, the dial lever is rotatably connected with the housing, the dial rod is fixedly connected with the driving member, and the dial rod is movably connected with the elastic member. 2 . The coal screening equipment for coal mining according to claim 1 , wherein the limiting member is two support rods, both of which are fixedly connected to the inner wall of the shell, and the sieve plate is 2. 3 . Respectively move against the two support rods. 3 . The coal screening equipment for coal mining according to claim 1 , wherein the elastic member comprises a sleeve, a spring and a pull rod, the sleeve is fixedly connected with the casing, and the pull rod is movable. 4 . Passing through the sleeve, one end of the pull rod is fixedly connected with the punch, the other end of the pull rod is movably connected with the dial lever, the spring is movably sleeved on the pull rod, and the two ends of the spring are respectively against Tighten the punch and the sleeve. 4 . The coal screening equipment for coal mining according to claim 3 , wherein the elastic member further comprises a dust cover, the dust cover is movably sleeved on the spring and the pull rod, and the Both ends of the dust cover are respectively fixedly connected with the punch and the sleeve. 5 . The coal screening equipment for coal mining according to claim 4 , wherein the driving member comprises a motor, a main gear A and a slave gear A, the motor is fixedly connected with the housing, and the The main gear A is fixedly connected with the output end of the motor, the slave gear A is fixedly connected with the dial lever, and the main gear A is meshed with the slave gear A. 6 . The coal screening equipment for coal mining according to claim 5 , wherein the screening assembly further comprises a blocking member, and each of the collection boxes is provided with one of the blocking members, and the The blocking member is movably blocked on the through hole. 7 . The coal screening equipment for coal mining according to claim 6 , wherein the blocking member comprises a door panel and an electric push rod, the door panel is hinged to the collection box, and the door panel is movably blocked. 8 . In the collection box, one end of the electric push rod is hinged with the collection box, and the other end of the electric push rod is hinged with the door panel. 8 . The coal screening equipment for coal mining according to claim 7 , wherein the screening assembly further comprises a support foot, and each of the four corners of the casing is fixedly connected with one of the support feet. 9 . 9 . The coal screening equipment for coal mining according to claim 8 , wherein the screening assembly further comprises a throwing piece, and the throwing piece comprises a material pipe and a gate, and the material pipe is connected to the casing. 10 . Fixed connection, the gate is movably blocked on the material pipe. 10 . The coal screening equipment for coal mining according to claim 9 , wherein the screening assembly further comprises a transmission member, and the transmission member comprises a connecting rod, a main gear B and a slave gear B, the The connecting rod is rotatably connected with the housing, the connecting rod is fixedly connected with the output end of the motor, the main gear B is fixedly connected with the connecting rod, and the slave gear B is fixedly connected with the gate, so The master gear B meshes with the slave gear B.

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