CN214166721U

CN214166721U - Coal unloading device for thermal power plant

Info

Publication number: CN214166721U
Application number: CN202022762206.1U
Authority: CN
Inventors: 温磊; 刘文静; 温于飞
Original assignee: Inner Mongolia Shangdu Power Generation Co Ltd
Current assignee: Inner Mongolia Shangdu Power Generation Co Ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-09-10
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to a thermal power plant equipment technical field just discloses a coal unloading device for thermal power plant, including the coal unloading device body, coal unloading device body top includes the balance room, one side that the coal unloading device body is close to the pneumatic cylinder is equipped with ball screw, the ball screw right side is equipped with the coal unloading drill bit, coal unloading device body bottom includes the bearing plate. This a coal discharging device for thermal power plant, two screw nuts are relative motion when driving two-way lead screw through servo motor and rotate, drive two coal discharging drill bit lifts and falls and clear up the inside coal cinder in carriage repeatedly when screw nut goes up and down, the beneficial effect of the remaining coal in the carriage of clearance has been reached, this a coal discharging device for thermal power plant, it rotates through No. two servo motor and drives the runner and rotate, the runner further drives the rotatory clearance coal cinder of cleaning broom of fixed mounting in the coal discharging drill bit outside, the beneficial effect that can not arouse the carriage to turn on one's side when having reached the coal discharging.

Description

Coal unloading device for thermal power plant

Technical Field

The utility model relates to a thermal power plant equipment technical field specifically is a coal unloading device for thermal power plant.

Background

The coal reserves in China are the first in the world, the conditions for developing thermal power are sufficient, and the power generation of the existing thermal power plant accounts for more than eighty percent of the total power generation. Most of thermal power plants are distributed in northern and northeast China, liquid water needs to be sprayed to pulverized coal in the transportation process of the pulverized coal, the pulverized coal is influenced by the temperature in winter in the northern and northeast China, the pulverized coal is frozen when the thermal power plants are transported, great trouble is brought to the unloading of the pulverized coal, and the transportation of the pulverized coal mainly takes railway transportation as a main part.

The traditional frozen coal unloading method mainly comprises two methods, one method is to unload coal powder manually, and the unloading method needs to consume great manpower and material resources and has low unloading efficiency; the other method is to open the side door of the train carriage to make the coal fall naturally, but a lot of coal remained in the carriage can be generated, and because the damping mechanism is arranged at the bottom of the train carriage, the carriage is easy to turn on one side when the grapple machine station is used for unloading the coal, and meanwhile, the coal remained in the carriage is not clean enough, so that personnel are easy to be injured.

Disclosure of Invention

Technical problem to be solved

Not enough to prior art, the utility model provides a coal unloading device for thermal power plant possesses the coal of clearing up the residual in the carriage, can not arouse advantages such as carriage turn on one's side during the coal unloading, has solved above-mentioned technical problem.

(II) technical scheme

For realizing the coal of above-mentioned clearance residual in the carriage, can not arouse the carriage purpose of turning on one's side during the coal unloading, the utility model provides a following technical scheme: a coal unloading device for a thermal power plant comprises a coal unloading device body, wherein the top of the coal unloading device body comprises a balance chamber, the inside of the balance chamber comprises a hydraulic cylinder, and the bottom of the balance chamber is provided with a support column;

a ball screw is arranged on one side, close to the hydraulic cylinder, of the coal unloading device body, a fixing frame is fixedly installed on the outer side of the ball screw, the fixing frame is fixedly connected with the hydraulic cylinder, the ball screw is provided with a screw nut, and a servo motor is arranged at the bottom of the ball screw;

a coal unloading drill bit is arranged on the right side of the ball screw, a connecting rod is arranged at the tail end of the coal unloading drill bit, the connecting rod is fixedly connected with a screw nut, the inner side of the coal unloading drill bit comprises a storage battery, a second servo motor and a rotating wheel, and a cleaning sweeping head is arranged on the outer side of the coal unloading drill bit;

the coal unloading device body bottom includes the bearing plate, the bearing plate bottom is equipped with the universal wheel.

Preferably, the balance chamber is located the top of the coal unloading device body, the hydraulic cylinder is fixedly installed on the inner side of the balance chamber, the support column is fixedly installed at the bottom of the balance chamber, and the support column is fixedly connected to the bearing plate.

Through the technical scheme, the support columns fixedly connected with the bearing plates are fixedly arranged at the bottom of the balance chamber, the hydraulic cylinders are fixedly arranged on the inner sides of the balance chamber, the ball screw is driven to move back and forth under the action of the hydraulic cylinders, the coal blocks attached to the inner wall of the carriage can be cleaned, and the support columns are used for supporting the balance chamber to prevent the coal unloading drill bit from turning on one side due to gravity center offset.

Preferably, the ball screw is a bidirectional screw, the ball screw is fixedly connected with the hydraulic cylinder through a fixing frame fixedly installed on the outer side, the number of the screw nuts is two, the screw nuts are symmetrically arranged on the upper end and the lower end of the ball screw, the servo motor is an external power supply, and the servo motor is fixedly installed on the bottom of the ball screw.

Through the technical scheme, the fixed frame fixedly connected with the outer side of the ball screw through the hydraulic cylinder is symmetrically arranged at the upper end and the lower end of the ball screw, the servo motor is fixedly arranged at the bottom of the ball screw, the ball screw is driven to rotate after the servo motor is started, meanwhile, the two screw nuts move relatively when the ball screw rotates in a bidirectional manner, the screw nuts are separated when the servo motor rotates in the positive direction, the screw nuts are combined when the servo motor rotates in the reverse direction, and the distance between the two screw nuts can be freely adjusted.

Preferably, the tail end of the coal unloading drill bit is fixedly connected with a connecting rod, and the tail end of the connecting rod is fixedly connected with a screw nut.

Through the technical scheme, the tail end of the coal unloading drill bit is fixedly connected through the connecting rod, and the tail end of the connecting rod is fixedly connected through the screw nut, so that the coal blocks in the carriage can be repeatedly cleaned by driving the two coal unloading drill bits to ascend and descend through the connecting rod when the screw nut ascends and descends.

Preferably, battery movable mounting is in the inboard tail end of coal discharge drill bit, No. two servo motor swing joint in battery, the runner rotates to be connected in No. two servo motor, runner fixed connection sweeps the head in the clearance, the clearance is swept the head and is the triangle of falling of metal rubber material, clearance is swept the head fixed mounting in the coal discharge drill bit outside.

Through the technical scheme, the storage battery is movably mounted at the tail end inside the coal unloading drill bit, the storage battery is movably connected with the second servo motor, the cleaning sweeping head is fixedly connected with the rotating wheel, the second servo motor is rotated to drive the rotating wheel to rotate, the rotating wheel further drives the cleaning sweeping head fixedly mounted on the outer side of the coal unloading drill bit to rotate to clean coal blocks, and the side turning caused by severe collision of the inner wall of a train can be avoided during cleaning.

Preferably, the bearing plate is fixedly installed at the bottom of the coal unloading device body, and the universal wheels are fixedly installed at four corners of the bottom of the bearing plate.

Through above-mentioned technical scheme, through bearing plate bottom four corners fixed mounting universal wheel, realized can freely removing the coal discharge device body and be convenient for the multi-angle coal discharge.

Compared with the prior art, the utility model provides a coal unloading device for thermal power plant possesses following beneficial effect:

1. this a coal unloading device for thermal power plant drives ball screw through servo motor after starting and rotates, and simultaneously because two screw nuts are relative motion when ball screw is two-way lead screw rotation, screw nut parts when servo motor corotation, and screw nut merges when servo motor reverses, drives two coal unloading drill bit lifts and falls through the connecting rod and clears up the inside coal cinder of carriage repeatedly when screw nut goes up and down and has reached the beneficial effect of the incomplete coal of clearance in the carriage.

2. This a coal discharge device for thermal power plant rotates through No. two servo motor and drives the runner rotation, and the runner further drives the rotatory clearance coal cinder of cleaning broom of fixed mounting in the coal discharge drill bit outside, can not take place the beneficial effect that can not arouse the carriage to turn on one's side when violently colliding and having reached the coal discharge in the clearance.

Drawings

FIG. 1 is a schematic front sectional view of the coal unloading device body of the structure of the utility model;

FIG. 2 is a schematic side sectional view of the coal unloading device body of the structure of the utility model;

fig. 3 is an enlarged schematic view of a in the structure diagram 1 of the present invention.

Wherein: 1. a coal discharge device body; 2. a balancing chamber; 201. a hydraulic cylinder; 202. a support pillar; 3. a ball screw; 301. a fixed mount; 302. a lead screw nut; 303. a servo motor; 4. a coal unloading drill bit; 401. a connecting rod; 402. a storage battery; 403. a second servo motor; 404. a rotating wheel; 405. cleaning the sweeping head; 5. a bearing plate; 501. a universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a coal unloading device for a thermal power plant comprises a coal unloading device body 1, wherein the top of the coal unloading device body 1 comprises a balance chamber 2, a hydraulic cylinder 201 is arranged in the balance chamber 2, and a support column 202 is arranged at the bottom of the balance chamber 2;

a ball screw 3 is arranged on one side of the coal unloading device body 1 close to the hydraulic cylinder 201, a fixing frame 301 is fixedly arranged on the outer side of the ball screw 3, the fixing frame 301 is fixedly connected with the hydraulic cylinder 201, the ball screw 3 is provided with a screw nut 302, and the bottom of the ball screw 3 is provided with a servo motor 303;

a coal unloading drill bit 4 is arranged on the right side of the ball screw 3, a connecting rod 401 is arranged at the tail end of the coal unloading drill bit 4, the connecting rod 401 is fixedly connected with a screw nut 302, the inner side of the coal unloading drill bit 4 comprises a storage battery 402, a second servo motor 403 and a rotating wheel 404, and a cleaning sweeping head 405 is arranged on the outer side of the coal unloading drill bit 4;

the bottom of the coal unloading device body 1 comprises a bearing plate 5, and universal wheels 501 are arranged at the bottom of the bearing plate 5.

Specifically, balance chamber 2 is located 1 tops of coal discharge device body, pneumatic cylinder 201 fixed mounting is inboard in balance chamber 2, support column 202 fixed mounting is in 2 bottoms of balance chamber, support column 202 fixed connection is in bearing plate 5, the advantage is support column 202 fixed mounting in 2 bottoms of balance chamber through fixed connection bearing plate 5, through 2 inboard fixed mounting pneumatic cylinders 201 of balance chamber, it drives ball screw 3 reciprocating motion to have realized under the effect of pneumatic cylinder 201, can clear up adnexed coal cinder on the carriage inner wall, use support column 202 to support balance chamber 2 and prevent that coal discharge drill bit 4 from turning on one's side because of the focus skew.

Specifically, the ball screw 3 is a bidirectional screw, the ball screw 3 is fixedly connected with the hydraulic cylinder 201 through a fixed frame 301 fixedly arranged on the outer side, the number of the screw nuts 302 is two, the two screw nuts 302 are symmetrically arranged on the upper end and the lower end of the ball screw 3, the servo motor 303 is an external power supply, and the servo motor 303 is fixedly arranged at the bottom of the ball screw 3. the advantages are that the fixed frame 301 fixedly arranged on the outer side of the ball screw 3 is fixedly connected with the hydraulic cylinder 201, the two screw nuts 302 are symmetrically arranged on the upper end and the lower end of the ball screw 3, the servo motor 303 is fixedly arranged at the bottom of the ball screw 3, the ball screw 3 is driven to rotate after the servo motor 303 is started, meanwhile, because the two screw nuts 302 do relative motion when the ball screw 3 rotates, the screw nuts 302 are separated when the servo motor 303 rotates, the distance between the two lead screw nuts 302 can be freely adjusted.

Concretely, 4 tail end fixedly connected with connecting rods 401 of coal discharge drill bit, connecting rod 401 tail end fixed connection screw nut 302, the advantage is through 4 tail ends of connecting rod 401 fixed connection coal discharge drill bit, through the 401 tail end of screw nut 302 fixed connection connecting rod, has realized driving two coal discharge drill bit 4 lifts through connecting rod 401 and has cleared up the inside coal cinder of carriage repeatedly when screw nut 302 goes up and down.

Specifically, battery 402 movable mounting is in the inboard tail end of coal discharge drill bit 4, No. two servo motor 403 swing joint is in battery 402, runner 404 rotates to be connected in No. two servo motor 403, runner 404 fixed connection is in clearance cleaning head 405, clearance cleaning head 405 is the inverted triangle body of metal rubber material, clearance cleaning head 405 fixed mounting is in the coal discharge drill bit 4 outside, the advantage is through the inboard tail end movable mounting battery 402 of coal discharge drill bit 4, through No. two servo motor 403 of battery 402 swing joint, through clearance cleaning head 405 fixed connection runner 404, No. two servo motor 403 has realized rotating to drive runner 404 and has rotated, runner 404 further drives the rotatory clearance coal cinder of clearance cleaning head 405 of fixed mounting in the coal discharge drill bit 4 outside, can not take place to collide the train inner wall and lead to turning on one's side in the clearance.

Specifically, 5 fixed mounting of bearing plate in the 1 bottom of coal discharge device body, universal wheel 501 fixed mounting in 5 bottom four corners of bearing plate, the advantage is through 5 bottom four corners fixed mounting universal wheels 501 of bearing plate, has realized can freely remove coal discharge device body 1 and be convenient for the multi-angle coal discharge.

When the coal cleaning device is used, the servo coal unloading device body 1 is started to drive the ball screw 3 to move back and forth under the action of the hydraulic cylinder 201, the servo motor 303 is started to drive the ball screw 3 to rotate, meanwhile, two screw nuts 302 move relatively when the ball screw 3 rotates in a bidirectional screw manner, the screw nuts 302 are separated when the servo motor 303 rotates forwards, the screw nuts 302 are combined when the servo motor 303 rotates backwards, the two coal unloading drill bits 4 are driven to ascend and descend through the connecting rod 401 to repeatedly clean coal blocks inside a carriage when the screw nuts 302 ascend and descend, the second servo motor 403 rotates to drive the rotating wheel 404 to rotate, the rotating wheel 404 further drives the cleaning head 405 fixedly installed on the outer side of the coal unloading drill bits 4 to rotate to clean the coal blocks, and violent collision cannot occur during cleaning.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A coal unloading device for a thermal power plant, comprising a coal unloading device body (1), characterized in that: the top of the coal unloading device body (1) comprises a balance chamber (2), a hydraulic cylinder (201) is arranged in the balance chamber (2), and a support column (202) is arranged at the bottom of the balance chamber (2);

a ball screw (3) is arranged on one side, close to the hydraulic cylinder (201), of the coal unloading device body (1), a fixing frame (301) is fixedly installed on the outer side of the ball screw (3), the fixing frame (301) is fixedly connected with the hydraulic cylinder (201), a screw nut (302) is arranged on the ball screw (3), and a servo motor (303) is arranged at the bottom of the ball screw (3);

a coal unloading drill bit (4) is arranged on the right side of the ball screw (3), a connecting rod (401) is arranged at the tail end of the coal unloading drill bit (4), the connecting rod (401) is fixedly connected with a screw nut (302), the inner side of the coal unloading drill bit (4) comprises a storage battery (402), a second servo motor (403) and a rotating wheel (404), and a cleaning sweeping head (405) is arranged on the outer side of the coal unloading drill bit (4);

the coal unloading device is characterized in that the bottom of the coal unloading device body (1) comprises a bearing plate (5), and universal wheels (501) are arranged at the bottom of the bearing plate (5).

2. A coal unloading apparatus for a thermal power plant according to claim 1, characterized in that: balance chamber (2) are located coal discharge device body (1) top, pneumatic cylinder (201) fixed mounting is inboard in balance chamber (2), support column (202) fixed mounting is in balance chamber (2) bottom, support column (202) fixed connection is in bearing plate (5).

3. A coal unloading apparatus for a thermal power plant according to claim 1, characterized in that: ball screw (3) are two-way lead screw, ball screw (3) are through outside fixed mounting's mount (301) fixed connection pneumatic cylinder (201), screw nut (302) quantity is two, two screw nut (302) symmetry is seted up in ball screw (3) upper and lower extreme, servo motor (303) fixed mounting is in ball screw (3) bottom.

4. A coal unloading apparatus for a thermal power plant according to claim 1, characterized in that: the tail end of the coal unloading drill bit (4) is fixedly connected with a connecting rod (401), and the tail end of the connecting rod (401) is fixedly connected with a screw nut (302).

5. A coal unloading apparatus for a thermal power plant according to claim 1, characterized in that: storage battery (402) movable mounting is in unloading coal drill bit (4) inboard tail end, No. two servo motor (403) swing joint in storage battery (402), runner (404) rotate to be connected in No. two servo motor (403), runner (404) fixed connection is in clearance cleaning head (405), clearance cleaning head (405) is the triangle of falling of metal rubber material, clearance cleaning head (405) fixed mounting is in unloading coal drill bit (4) outside.

6. A coal unloading apparatus for a thermal power plant according to claim 1, characterized in that: bearing plate (5) fixed mounting is in coal unloading device body (1) bottom, universal wheel (501) fixed mounting is in bearing plate (5) bottom four corners.