CN111003483A - Opening and closing cloth type coal accumulation and coal dropping prevention cylinder - Google Patents

Abstract

The utility model provides an it prevents long-pending coal breakage section of thick bamboo to open and shut cloth formula, is used for leading the coal that the end of unloading the coal of transporting the coal belt down unloaded to the coal breakage section of thick bamboo body of transporting the coal belt and receiving the coal end including setting up between two coal transportation belts, is provided with open-close distributing device in the coal breakage section of thick bamboo body to make coal from transporting the coal belt and unloading the coal end and unloading and get into this internal back impact of coal breakage section of thick bamboo and after the buffering cloth on this open-close distributing device, evenly scatter and transport the coal belt and receive the coal and serve down. According to the invention, the open-close type distributing device is arranged in the coal dropping cylinder, so that the coal entering the coal dropping cylinder firstly falls onto the open-close type distributing device, is buffered and dispersed, and then falls onto the lower belt, thereby not only improving the problems that the coal is accumulated in the center and is unevenly distributed, but also reducing the impact force of the coal on the lower belt.

Description

Opening and closing cloth type coal accumulation and coal dropping prevention cylinder

Technical Field

The invention relates to the field of coal transfer, in particular to an opening-closing cloth type coal accumulation and dropping prevention cylinder.

Background

In the prior art, coal is generally transported by using a coal transporting belt in the transporting process, but in the transporting process of the coal, the transporting point and the coal unloading point are not on the same straight line, and a plurality of belts are needed to transport the coal;

when coal is transferred between the two belt conveyors, the tail end of the previous belt conveyor is generally positioned above the head end of the other belt conveyor, so that the coal on the previous belt conveyor falls onto the head end belt of the other belt conveyor under the action of inertia and gravity and is transmitted along with the belt; in such a transportation situation, two problems occur: 1) the coal falls down by gravity, and can generate large vibration and impact on a belt of the lower-layer belt conveyor, so that the failure occurrence rate of the lower-layer belt conveyor is increased; 2) when coal falls onto the belt below, the coal is more near the center of the belt and less near the two sides, which not only reduces the conveying efficiency of the belt, but also makes the belt unstable.

Disclosure of Invention

In order to solve the problem that coal is not uniformly distributed when being transferred to a lower belt between two belts, the invention provides the opening-closing distribution type coal accumulation preventing coal dropping cylinder.

The technical scheme adopted by the invention for solving the technical problems is as follows: an opening and closing cloth type coal accumulation and dropping prevention barrel comprises a coal dropping barrel body which is arranged between two coal transferring belts and is used for guiding coal unloaded from a coal unloading end of an upper coal transferring belt to a coal receiving end of a lower coal transferring belt, an opening and closing cloth device is arranged in the coal dropping barrel body, so that the coal is unloaded from the coal unloading end of the upper coal transferring belt, enters the coal dropping barrel body, then impacts the opening and closing cloth device to buffer the cloth, and then evenly scatters to the coal receiving end of the lower coal transferring belt, the opening and closing cloth device comprises a hollow steel pipe, the top end of the hollow steel pipe is fixed on a cross beam, the bottom end of the hollow steel pipe extends into the coal dropping barrel body, a lifting rod is arranged in the hollow steel pipe in a sliding mode, the two ends of the lifting rod extend out of the hollow steel pipe, the top end of the lifting rod is driven by a slider crank mechanism to do reciprocating lifting motion in the hollow steel pipe, a plurality of movable plates are hinged around the outer wall, at least two connecting rods are hinged below each movable plate, the free ends of the connecting rods are hinged and distributed around the bottom end of the lifting rod extending out of the hollow steel pipe, so that the movable plates are supported to form a conical movable platform surrounding the hollow steel pipe, and when the lifting rod reciprocates, the connecting rods drive the conical angle of the conical movable platform to periodically open and close at the angle of 160 plus 140 degrees, and coal discharged from the coal discharging end of the coal belt is dispersed in the process;

the upper surface of the conical movable platform is covered with an elastic rubber pad, a plurality of supporting strips which are consistent with the generatrix direction of the conical movable platform are uniformly fixed on the lower surface of the elastic rubber pad, and each supporting strip is supported by a plurality of compression springs arranged on the upper surface of the movable plate, so that a buffer space for buffering and dispersing coal falling on the surface of the elastic rubber pad is formed between the elastic rubber pad and the upper surface of the conical movable platform.

In a preferred embodiment of the invention, the upper part of the inner wall of the coal dropping cylinder body is provided with a sliding type coal accumulation preventing mechanism, the sliding type coal accumulation preventing mechanism comprises a smooth rubber cushion layer arranged on the upper part of the inner wall of the coal dropping cylinder body, the top of the smooth rubber cushion layer is detachably fixed at the top end of the coal dropping cylinder body, and the lower part of the smooth rubber cushion layer is connected with the end part of a movable plate through a plurality of pull cables, so that the movable plate is driven by a connecting rod to periodically open and close around a hinge point in the reciprocating lifting process of a lifting rod, and the smooth rubber cushion layer is pulled by the pull cables to prevent coal ash from accumulating.

Another preferred embodiment of the present invention is that the upper end of the smooth rubber cushion layer bypasses the top end of the coal dropping cylinder body and is fixed with the outer wall of the coal dropping cylinder body, and a plurality of support rods supported by compression springs are arranged between the top end of the coal dropping cylinder body and the smooth rubber cushion layer, and the support rods jack up the upper part of the smooth rubber cushion layer under the elastic force of the compression springs, so that the support rods and the top end of the coal dropping cylinder body form a sliding deformation part.

Another preferred embodiment of the invention is that a plurality of groups of sliding support assemblies are arranged between the smooth rubber cushion layer and the inner wall of the coal dropping cylinder body, and the sliding support assemblies enable a buffer interval to be formed between the smooth rubber cushion layer and the inner wall of the coal dropping cylinder body; every group the slip supporting component include around coal breakage section of thick bamboo body evenly distributed on its inner wall U-shaped groove rail and with U-shaped groove rail sliding fit's track strip, and the track strip is fixed on smooth rubber cushion to when making the cable draw smooth rubber cushion, smooth rubber cushion moves under the restraint of track strip and U-shaped groove rail.

Another preferred embodiment of the invention is that the upper end of the smooth rubber cushion layer is provided with a fixture block assembly, the fixture block assembly is formed by splicing two fixing plates which are respectively and closely matched with the top end and the outer side wall of the coal chute body, and the outer side wall of the coal chute body is provided with a connecting bolt connected with the fixture block assembly.

Another preferred embodiment of the invention is that the coal chute body is formed by splicing an upper inverted circular truncated cone part and a lower cylindrical part, the inner diameter of the top of the inverted circular truncated cone part is larger than that of the bottom of the inverted circular truncated cone part, the inner diameter of the bottom of the inverted circular truncated cone part is the same as that of the cylindrical part, so that a tubular coal feeding channel at the lower part of an upper hopper is formed in the coal chute body, the open-close type distributing device is positioned in the cylindrical part, and when the conical movable platform of the open-close type distributing device is opened to the maximum and minimum, the distance between the edge of the open-close type distributing device and the.

Another preferred embodiment of the invention is that the top and the bottom of the coal dropping barrel body are respectively provided with an upper sealing device for wrapping the coal unloading end of the upper coal conveying belt and a lower sealing device for wrapping the coal receiving end of the lower coal conveying belt, and the outside of the upper sealing device is provided with a dust collecting mechanism which comprises a dust collecting fan and a purification water tank, wherein the air inlet of the dust collecting fan is communicated with the inside of the upper sealing device through an air guiding pipe, and the air outlet extends to a position below the water surface in the purification water tank through an exhaust pipe, so that the dust collecting fan can pump the air with coal dust in the upper sealing device, then send the air into the purification water tank, purify the water and discharge the air.

Another preferred embodiment of the invention is that the upper sealing device comprises a sealing cover body I arranged above the coal dropping cylinder body, the sealing cover body I is fixedly connected with the cross beam, a rubber leather curtain I is arranged at the bottom of the sealing cover body I, and the bottom of the rubber leather curtain I is in adsorption connection with a metal piece arranged at the edge of the outer wall at the top of the coal dropping cylinder body through a strong magnet, so that a sealing chamber for covering the top of the coal dropping cylinder body is formed; a coal inlet channel for the coal unloading end of the coal conveying belt to penetrate is arranged on the rubber curtain I.

Another preferred embodiment of the invention is that the lower closing device is a closed cover body ii with an open top, the side wall of the closed cover body ii is fixedly connected with the bottom of the coal dropping cylinder body, a coal outlet channel is arranged on the side wall of the closed cover body ii, and the coal outlet channel is closed by a rubber curtain ii.

Another preferred embodiment of the invention is that the slider-crank mechanism comprises a turntable and a pushing pin arranged on the surface of the turntable, the pushing pin slides in a horizontal strip-shaped groove on a horizontal strip-shaped plate, the top of the lifting rod is fixedly connected with the middle position of the horizontal strip-shaped plate, and in the autorotation process of the turntable, the pushing pin on the lifting rod slides in the horizontal strip-shaped groove of the horizontal strip-shaped plate in a reciprocating manner, so that the rotating power output by the turntable is converted into the up-and-down reciprocating motion of the lifting rod in the hollow steel tube.

Compared with the prior art, the invention has the following beneficial effects:

1) according to the invention, the open-close type distributing device is arranged in the coal dropping cylinder, so that coal entering the coal dropping cylinder firstly falls onto the open-close type distributing device, is buffered and dispersed, and then falls onto the lower belt, thus the problems of coal accumulation in the center and uneven distribution are solved, and the impact force of the coal on the lower belt is reduced;

2) according to the invention, the main body of the open-close type distributing device is an umbrella-shaped conical movable platform formed by movable plates capable of being opened and closed within a certain angle, the conical movable platform is a foundation, an elastic rubber pad is supported by a compression spring and a supporting bar on the conical movable platform, and a buffer space is formed between the elastic rubber pad and the movable plate;

3) according to the invention, the sliding type coal accumulation preventing mechanism is arranged on the inner wall of the coal dropping cylinder, the main body of the sliding type coal accumulation preventing mechanism is a smooth rubber cushion layer arranged around the inner wall of the coal dropping cylinder, the bottom of the smooth rubber cushion layer is connected with the open-close type distributing device through a pull rope, and the open-close type distributing device synchronously drives the smooth rubber cushion layer to move, so that the smooth rubber cushion layer generates vibration and displacement relative to the inner wall of the coal dropping cylinder, and the surface of the coal accumulation preventing mechanism is prevented from accumulating coal ash;

4) in order to make the vibration amplitude of the smooth rubber cushion layer larger and the effect better, a supporting rod supported by a compression spring is arranged between the top of the smooth rubber cushion layer and the top of a coal dropping cylinder, the structure has the effect that the upper part of the smooth rubber cushion layer is supported by the supporting rod supported by the compression spring to form a sliding deformation part, so that when a cable is pulled, the vibration is amplified by the sliding deformation part, the whole smooth rubber cushion layer is enabled to synchronously displace in the vertical height and the horizontal direction, the vibration effect is improved, and the effect of removing the accumulated coal ash on the surface is better;

5) in order to ensure that the smooth rubber cushion layer can be displaced on a certain track in the vertical height and horizontal direction when being pulled and simultaneously reduce the friction force between the smooth rubber cushion layer and the inner wall of the coal chute so as to facilitate better movement, a plurality of groups of sliding support assemblies are arranged between the smooth rubber cushion layer and the coal chute, each group of sliding support assemblies comprises a U-shaped groove rail arranged on the inner wall of the coal chute, and the smooth rubber cushion layer is slidably clamped in the U-shaped groove rail through a rail strip, so that when the smooth rubber cushion layer is pulled to vibrate, the moving mode of the smooth rubber cushion layer can be guided to move along the U-shaped groove rail direction under the action of an upper sliding deformation part, and the vibration effect is improved;

6) because impact and friction of coal in the falling process can cause the surface of the smooth rubber cushion layer to age and generate pits, the smooth rubber cushion layer needs to be frequently replaced, and in order to replace the smooth rubber cushion layer, the fixture block assembly is arranged on the top of the smooth rubber cushion layer and can be clamped on the edge of the top of the coal dropping cylinder and detachably fixed by using a connecting bolt, so that the smooth rubber cushion layer and the coal dropping cylinder can be detachably connected;

7) because the open-close type distributing device is in continuous open-close action all the time when discharging coal, the coal ash is inevitably stirred more seriously, in order to reduce the dust pollution of the coal dropping cylinder, the top and the bottom of the coal dropping cylinder body are respectively provided with an upper sealing device for wrapping the coal discharging end of an upper coal conveying belt and a lower sealing device for wrapping the coal receiving end of a lower coal conveying belt, a dust collecting mechanism is arranged outside the upper sealing device, the generated coal ash is pumped into a purified water tank by a dust collecting fan, and an air outlet pipe extends below the water surface of the purified water tank, so that the coal ash can be removed by filtering water in the air discharging process, and the dust pollution near the coal dropping cylinder is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of an open-close type distributing device and a sliding type coal accumulation preventing mechanism;

FIG. 3 is a schematic structural view of a sliding type coal accumulation preventing mechanism;

FIG. 4 is a schematic view of the open-close type cloth device when it is open (i.e. the cone angle is 160 degrees);

FIG. 5 is a schematic view of the open-close type cloth device when it is open (i.e. the cone angle is 140 degrees);

FIG. 6 is a detailed structure diagram of the opening and closing type material distributing device;

FIG. 7 is a top view of the movable plate and the stay;

FIG. 8 is a schematic structural view of a coal dropping barrel body;

FIGS. 9-12 are schematic views of the motion cycle of a preferred slider-crank mechanism;

reference numerals: 1. coal dropping cylinder body, 101, an inverted circular truncated cone part, 102, a cylindrical part, 103, a coal dropping channel, 2, a sliding type coal accumulation preventing mechanism, 201, a smooth rubber cushion layer, 202, a rail strip, 203, a U-shaped groove rail, 204, a sliding deformation part, 205, a supporting rod, 206, a buffer interval, 3, an opening and closing type distributing device, 301, a hollow steel pipe, 302, a lifting rod, 303, a movable plate, 304, a supporting rod, 305, an elastic rubber pad, 306, a buffer space, 307, a compression spring, 308, a connecting rod, 309, a guy cable, 4, a slider-crank mechanism, 401, a turntable, 402, a pushing pin, 403, a horizontal strip plate, 404, a horizontal strip groove, 5, an upper sealing device, 501, a sealing cover body I, 502, a rubber leather curtain I, 503, a coal feeding channel, 504, a strong magnet, 6, a dust collecting mechanism, 601, a fan, 602, a purification water tank, 7, a cross beam, 8, a rubber leather, And a rubber leather curtain II.

Detailed Description

The technical solution of the present invention will be further illustrated and described with reference to specific examples.

Example 1

As shown in fig. 1, 2, 4, 5, 6 and 7, an open-close distributing type coal accumulation preventing coal dropping cylinder comprises a coal dropping cylinder body 1 arranged between two coal transporting belts and used for guiding coal unloaded from a coal unloading end of an upper coal transporting belt to a coal receiving end of a lower coal transporting belt, an open-close distributing device 3 is arranged in the coal dropping cylinder body 1, so that the coal is unloaded from the coal unloading end of the upper coal transporting belt, enters the coal dropping cylinder body 1, then impacts on the open-close distributing device 3 for buffering and distributing the coal, and is uniformly scattered on the coal receiving end of the lower coal transporting belt, the open-close distributing device 3 comprises a hollow steel pipe 301, the top end of which is fixed on a cross beam 7, the bottom end of which extends into the coal dropping cylinder body 1, a lifting rod 302 is arranged in the hollow steel pipe 301 in a sliding manner, two ends of the lifting rod 302 both extend out of the hollow steel pipe 301, and the top end of the lifting rod is driven by a slider crank mechanism 4 to do reciprocating lifting motion in the hollow steel pipe 301, a plurality of movable plates 303 are hinged around the outer wall of the hollow steel pipe 301, gaps are reserved among the movable plates 303, at least two connecting rods 308 are hinged below each movable plate 303, the free ends of the connecting rods 308 are hinged and distributed around the lifting rod 302 and extend out of the bottom end of the hollow steel pipe 301, so that the movable plates 303 are supported to form a conical movable platform surrounding the hollow steel pipe 301, when the lifting rod 302 reciprocates, the connecting rods 308 drive the conical angle of the conical movable platform to periodically open and close at 160 degrees and 140 degrees, and coal discharged from the coal discharging end of the coal belt is dispersed in the process;

an elastic rubber pad 305 is covered on the upper surface of the conical movable platform, a plurality of supporting strips 304 which are consistent with the generatrix direction of the conical movable platform are uniformly fixed on the lower surface of the elastic rubber pad 305, and each supporting strip 304 is supported by a plurality of compression springs 307 arranged on the upper surface of the movable plate 303, so that a buffer space 306 for buffering and dispersing coal falling on the surface of the elastic rubber pad 305 is formed between the elastic rubber pad 305 and the upper surface of the conical movable platform.

In the present embodiment, the movable plates 303 are actually machined from a cone, and the specific operations are as follows: selecting a cone made of a steel plate, wherein the cone vertex angle is 135 degrees at 130 degrees, cutting off a part of the top to form a through hole at the top, wherein the through hole is matched with the outer diameter of the hollow steel pipe 301, then uniformly cutting the through hole into a plurality of movable plates 303 along the generatrix direction, each movable plate 303 is a movable plate, and the top of each movable plate is hinged to the outer wall of the hollow steel pipe 301, at the moment, the movable plates 303 naturally fall under the action of gravity and are jointed with the adjacent movable plates 303 to form an original cone, and when the movable plates are synchronously jacked upwards by adopting a connecting rod 308 and the formed cone is larger than 135 degrees at 130 degrees, a gap is formed between the adjacent movable plates 303, namely, the cone-shaped movable platform can move as long as the cone vertex angle of the formed cone-shaped movable platform is larger than the original cone vertex angle;

the size of elastomeric pad 305 in this embodiment is the same as that of the cone-shaped movable platform when it is expanded to 160 degrees, so that when it is retracted to 140 degrees, elastomeric pad 305 will partially fold.

The above is the basic implementation mode of the present invention, and further improvement, optimization and perfection can be made on the basis of the above, so as to obtain the following embodiments:

example 2

This embodiment is an improvement on embodiment 1, and the main structure thereof is the same as that of embodiment 1, except that: as shown in fig. 1-3, a sliding type coal accumulation preventing mechanism 2 is arranged on the upper portion of the inner wall of the coal chute body 1, the sliding type coal accumulation preventing mechanism 2 comprises a smooth rubber cushion 201 arranged on the upper portion of the inner wall of the coal chute body 1, the top of the smooth rubber cushion 201 is detachably fixed on the top end of the coal chute body 1, and the lower portion of the smooth rubber cushion 201 is connected with the end portion of a movable plate 303 through a plurality of cables 309, so that the movable plate 303 is driven to periodically open and close around a hinge point through a connecting rod 308 in the reciprocating lifting process of a lifting rod 302, and the smooth rubber cushion 201 is pulled through the cables 309, thereby preventing coal ash from accumulating on the surface.

The smooth rubber pad layer 201 in this embodiment is actually a rubber pad with a smooth surface, and the thickness thereof is preferably 0.5-2 cm; of course, in order to enhance the strength and wear resistance, a wear-resistant ceramic sheet can be attached to the surface of the ceramic plate.

Example 3

The present embodiment is a further improvement on the basis of embodiment 2, and the main structure thereof is the same as that of embodiment 2, except that: as shown in fig. 2 and 3, the upper end of the smooth rubber cushion 201 bypasses the top end of the coal chute body 1 and is fixed to the outer wall thereof, and a plurality of support rods 205 supported by compression springs are arranged between the top end of the coal chute body 1 and the smooth rubber cushion 201, and the support rods 205 jack up the upper portion of the smooth rubber cushion 201 under the elastic force of the compression springs, so that a sliding deformation portion 204 is formed between the support rods and the top end of the coal chute body 1.

The support rods 205 in this embodiment are actually annular rods distributed along the top end of the coal chute body 1, and the lower parts of the annular rods are supported by a plurality of compression springs. Of course, the ring-shaped rods may also be arc-shaped rods with gaps among several segments, but the arc-shaped rods must be distributed along the top end of the coal chute body 1.

Example 4

This embodiment is a further improvement on embodiment 2, and its main structure is the same as embodiment 2, except that: as shown in fig. 2, 3 and 5, a plurality of sets of sliding support assemblies are arranged between the smooth rubber cushion 201 and the inner wall of the coal chute body 1, and the sliding support assemblies enable a buffer space 206 to be formed between the smooth rubber cushion 201 and the inner wall of the coal chute body 1; each group of sliding support assemblies comprises U-shaped groove rails 203 which are uniformly distributed on the inner wall of the coal dropping cylinder body 1 around the coal dropping cylinder body and rail strips 202 which are in sliding fit with the U-shaped groove rails 203, and the rail strips 202 are fixed on the smooth rubber cushion layer 201, so that when the smooth rubber cushion layer 201 is pulled by the inhaul cable 309, the smooth rubber cushion layer 201 moves under the restraint of the rail strips 202 and the U-shaped groove rails 203.

In this embodiment, lubricating oil can be added between the U-shaped groove rail 203 and the rail bar 202 for lubrication, and meanwhile, the height of the rail bar 202 exceeds the depth of the U-shaped groove rail 203, so that the smooth rubber pad 201 can be separated from the U-shaped groove rail 203, and the smooth rubber pad 201 can be well ensured to have enough supporting force to reduce the contact with the inner wall of the coal dropping cylinder body 1 as much as possible, and a local cavity is formed between the smooth rubber pad 201 and the inner wall of the coal dropping cylinder body 1, so that when coal falls on the smooth rubber pad 201, the smooth rubber pad 201 can vibrate under the elastic action of the rubber material itself, thereby preventing the accumulation of coal.

Example 5

The present embodiment is a further improvement on the basis of embodiment 2, and the main structure thereof is the same as that of embodiment 2, except that: as shown in fig. 3, the upper end of the smooth rubber cushion layer 201 is provided with a fixture block assembly, the fixture block assembly is formed by splicing two fixing plates which are respectively closely matched with the top end and the outer side wall of the coal dropping cylinder body 1, and the outer side wall of the coal dropping cylinder body 1 is provided with a connecting bolt connected with the fixture block assembly.

Of course, this embodiment may also be modified based on embodiment 3 or 4, and the structure thereof is the same as that of embodiment 2.

Example 6

This embodiment is a further improvement on the basis of embodiment 1, and its main structure is the same as embodiment 1, except that: as shown in fig. 2 and 8, the coal chute body 1 is formed by splicing an upper inverted circular truncated cone part 101 and a lower cylindrical part 102, the inner diameter of the top part of the inverted circular truncated cone part 101 is larger than the inner diameter of the bottom part, the inner diameter of the bottom part of the inverted circular truncated cone part 101 is the same as the inner diameter of the cylindrical part 102, so as to form an upper hopper lower tubular coal chute 103 in the coal chute body 1, the open-close type distributing device 3 is arranged in the cylindrical part 102, and when the conical movable platform of the open-close type distributing device 3 is opened to the maximum and minimum, the distance between the edge of the open-close type distributing device and the inner wall of the.

Example 7

This embodiment is a further improvement on the basis of embodiment 1, and its main structure is the same as embodiment 1, except that: as shown in fig. 1, an upper sealing device 5 for wrapping a coal unloading end of an upper coal conveying belt and a lower sealing device 8 for wrapping a coal receiving end of a lower coal conveying belt are respectively arranged at the top and the bottom of a coal dropping cylinder body 1, a dust collecting mechanism 6 is arranged outside the upper sealing device 5, the dust collecting mechanism 6 comprises a dust collecting fan 601 and a purified water tank 602, wherein an air inlet of the dust collecting fan 601 is communicated with the upper sealing device 5 through an induced duct, and an air outlet extends to a position below the water surface in the purified water tank 602 through an exhaust duct, so that air with coal dust in the upper sealing device 5 is pumped by the dust collecting fan 601, sent into the purified water tank 602, purified, collected and discharged.

Example 8

This embodiment is a further improvement on the basis of embodiment 7, and its main structure is the same as embodiment 7, except that: as shown in fig. 1, the upper sealing device 5 includes a sealing cover body i 501 arranged above the coal chute body 1, the sealing cover body i 501 is fixedly connected with the cross beam 7, a rubber curtain i 502 is arranged at the bottom of the sealing cover body i 501, and the bottom of the rubber curtain i 502 is connected with a metal piece arranged at the edge of the outer wall of the top of the coal chute body 1 through a strong magnet 504 in an adsorption manner, so as to form a sealing chamber which covers the top of the coal chute body 1; a coal inlet channel 503 for the coal unloading end of the coal conveying belt to penetrate is arranged on the rubber curtain I502.

The rubber curtain i 502 described in this embodiment is a door curtain formed by sequentially adhering the upper ends of a plurality of belt-like members made of rubber materials to the top of the coal feeding passage 503 and freely suspending the bottom of the belt-like members, and belongs to the prior art, which is not described herein again.

Example 9

This embodiment is a further improvement on the basis of embodiment 7, and its main structure is the same as embodiment 7, except that: as shown in fig. 1, the lower closing device 8 is a closed cover body ii with an open top, the side wall of the closed cover body ii is fixedly connected with the bottom of the coal dropping cylinder body 1, a coal outlet channel is arranged on the side wall of the closed cover body ii, and the coal outlet channel is closed by a rubber curtain ii 801.

The rubber leather curtain ii 801 described in this embodiment is a door curtain formed by sequentially adhering the upper ends of a plurality of belt-like members made of rubber materials to the top of the coal outlet passage and freely suspending the bottom of the belt-like members, and belongs to the prior art, which is not described herein again.

Example 10

This embodiment is a further improvement on the basis of embodiment 1, and its main structure is the same as embodiment 1, except that: as shown in fig. 9 to 12, the slider-crank mechanism 4 includes a rotary disc 401 and a pushing pin 402 disposed on the disc surface of the rotary disc 401, the pushing pin 402 slides in a horizontal strip-shaped groove 404 of a horizontal strip-shaped plate 403, the top of the lifting rod 302 is fixedly connected to the middle position of the horizontal strip-shaped plate 403, during the rotation of the rotary disc 401, the pushing pin 402 thereon slides back and forth in the horizontal strip-shaped groove 404 of the horizontal strip-shaped plate 403, and then the rotation power output by the rotary disc 401 is converted into the up-and-down reciprocating motion of the lifting rod 302 in the hollow steel tube 301.

Fig. 9-12 are schematic views of one cycle of movement of the slider-crank mechanism 4.

Claims (10)

1. The utility model provides an it prevents long-pending coal breakage section of thick bamboo to open and shut cloth formula, is used for leading the coal that the end of unloading the coal belt of transporting upward between two coal transportation belts to the coal breakage section of thick bamboo body (1) of the coal belt of transporting coal belt receiving coal end down including setting up, is provided with open-close distributing device (3) in coal breakage section of thick bamboo body (1) to make coal from last transport coal belt unload the coal end lift off get into behind the buffering cloth on this open-close distributing device (3) after the coal end lifts, evenly scatter to transport coal belt receiving coal under and serve its characterized in that: the open-close type distributing device (3) comprises a hollow steel pipe (301) with the top end fixed on a cross beam (7) and the bottom end extending into the coal chute body (1), a lifting rod (302) is arranged in the hollow steel pipe (301) in a sliding manner, the two ends of the lifting rod (302) extend out of the hollow steel pipe (301), the top end of the lifting rod is driven by a slider-crank mechanism (4) to do reciprocating lifting motion in the hollow steel pipe (301), a plurality of movable plates (303) are hinged around the outer wall of the hollow steel pipe (301), gaps are reserved among the movable plates (303), at least two connecting rods (308) are hinged below each movable plate (303), the free ends of the connecting rods (308) are hinged and distributed around the bottom end of the lifting rod (302) extending out of the hollow steel pipe (301), and the movable plates (303) are supported to form a conical movable platform surrounding the hollow steel pipe (301), when the lifting rod (302) does reciprocating motion, the connecting rods (308) drive the cone angle of the cone-shaped movable platform to periodically open and close between 160 DEG and 140 DEG, and the coal discharged from the coal discharging end of the coal belt is dispersed in the process;

the upper surface of the conical movable platform is covered with an elastic rubber pad (305), a plurality of supporting strips (304) which are consistent with the generatrix direction of the conical movable platform are uniformly fixed on the lower surface of the elastic rubber pad (305), and each supporting strip (304) is supported by a plurality of compression springs (307) arranged on the upper surface of the movable plate (303), so that a buffer space (306) for buffering and dispersing coal falling on the surface of the elastic rubber pad (305) is formed between the elastic rubber pad (305) and the upper surface of the conical movable platform.

2. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 1, wherein: coal deposit mechanism (2) are prevented to the upper portion of coal breakage section of thick bamboo body (1) inner wall is provided with the slidingtype, this slidingtype is prevented coal deposit mechanism (2) and is including setting up smooth rubber cushion (201) on coal breakage section of thick bamboo body (1) inner wall upper portion, and the top of this smooth rubber cushion (201) can be dismantled and fix on coal breakage section of thick bamboo body (1) top, the end connection of a plurality of cable (309) and fly leaf (303) is passed through to the lower part, so that lifter (302) are at reciprocal lift in-process, drive fly leaf (303) through connecting rod (308) and do the periodic action of opening and shutting around the pin joint, and then draw smooth rubber cushion (201) of dragging through cable (309), prevent that the coal ash from.

3. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 2, wherein: the upper end of the smooth rubber cushion layer (201) bypasses the top end of the coal dropping cylinder body (1) and is fixed with the outer wall of the coal dropping cylinder body, a plurality of compression spring supporting support rods (205) are arranged between the top end of the coal dropping cylinder body (1) and the smooth rubber cushion layer (201), and the support rods (205) jack up the upper portion of the smooth rubber cushion layer (201) under the elastic force action of the compression springs to enable the smooth rubber cushion layer and the top end of the coal dropping cylinder body (1) to form a sliding deformation portion (204).

4. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 2, wherein: a plurality of groups of sliding support assemblies are arranged between the smooth rubber cushion layer (201) and the inner wall of the coal chute body (1), and the sliding support assemblies enable a buffer interval (206) to be formed between the smooth rubber cushion layer (201) and the inner wall of the coal chute body (1); each group of sliding support assembly comprises U-shaped groove rails (203) which are uniformly distributed on the inner wall of the coal dropping cylinder body (1) in a winding mode and rail strips (202) which are in sliding fit with the U-shaped groove rails (203), the rail strips (202) are fixed on the smooth rubber cushion layer (201), and when the smooth rubber cushion layer (201) is pulled by a pull rope (309), the smooth rubber cushion layer (201) moves under the restraint of the rail strips (202) and the U-shaped groove rails (203).

5. The open-close cloth type coal accumulation preventing coal dropping cylinder according to any one of claims 2, 3 or 4, wherein: the upper end of smooth rubber bed course (201) is provided with fixture block subassembly, and this fixture block subassembly is formed for two fixed plates concatenations that paste tight complex respectively with coal breakage section of thick bamboo body 1 top and lateral wall, and is equipped with the connecting bolt rather than being connected on coal breakage section of thick bamboo body 1's lateral wall.

6. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 1, wherein: the coal chute body (1) is formed by splicing an upper inverted circular truncated cone part (101) and a lower cylindrical part (102), the inner diameter of the top of the inverted circular truncated cone part (101) is larger than the inner diameter of the bottom of the inverted circular truncated cone part, the inner diameter of the bottom of the inverted circular truncated cone part (101) is the same as that of the cylindrical part (102), so that a tubular coal discharging channel (103) at the lower part of an upper hopper is formed in the coal chute body (1), the opening and closing type distributing device (3) is located in the cylindrical part (102), and when the conical movable platform of the opening and closing type distributing device (3) is opened to the maximum and minimum, the distance between the edge of the opening and closing type distributing device and the inner wall of.

7. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 1, wherein: the coal dropping barrel is characterized in that an upper sealing device (5) wrapping a coal unloading end of an upper coal conveying belt and a lower sealing device (8) wrapping a coal receiving end of a lower coal conveying belt are respectively arranged at the top and the bottom of the coal dropping barrel body (1), a dust collecting mechanism (6) is arranged outside the upper sealing device (5), the dust collecting mechanism (6) comprises a dust collecting fan (601) and a purified water tank (602), wherein an air inlet of the dust collecting fan (601) is communicated with the upper sealing device (5) through an induced air pipe, and an air outlet extends to a position below the water surface in the purified water tank (602) through an exhaust pipe, so that the dust collecting fan (601) can exhaust the air with coal dust in the upper sealing device (5) and then sends the air into the purified water tank (602) to be purified and then discharged.

8. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 7, wherein: the upper sealing device (5) comprises a sealing cover body I (501) arranged above the coal dropping cylinder body (1), the sealing cover body I (501) is fixedly connected with the cross beam (7), a rubber leather curtain I (502) is arranged at the bottom of the sealing cover body I (501), and the bottom of the rubber leather curtain I (502) is in adsorption connection with a metal piece arranged at the edge of the outer wall of the top of the coal dropping cylinder body (1) through a strong magnet (504), so that a sealing cavity for covering the top of the coal dropping cylinder body (1) is formed; a coal inlet channel (503) for the coal unloading end of the coal conveying belt to penetrate is arranged on the rubber leather curtain I (502).

9. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 7, wherein: the lower sealing device (8) is a sealing cover body II with an opening at the top, the side wall of the sealing cover body II is fixedly connected with the bottom of the coal dropping cylinder body (1), a coal outlet channel is arranged on the side wall of the sealing cover body II, and the coal outlet channel is sealed by a rubber curtain II (801).

10. The opening-closing cloth type coal accumulation and dropping prevention cylinder as claimed in claim 1, wherein: the slider-crank mechanism (4) comprises a rotary disc (401) and a pushing pin (402) arranged on the disc surface of the rotary disc (401), the pushing pin (402) slides in a horizontal strip-shaped groove (404) on a horizontal strip-shaped plate (403), the top of the lifting rod (302) is fixedly connected with the middle position of the horizontal strip-shaped plate (403), in the rotation process of the rotary disc (401), the pushing pin (402) on the lifting rod reciprocates in the horizontal strip-shaped groove (404) of the horizontal strip-shaped plate (403) to slide, and then the rotating power output by the rotary disc (401) is converted into the up-and-down reciprocating motion of the lifting rod (302) in the hollow steel tube (301).

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