Rocker arm type boiler coaling device suitable for pit coal bucket

By introducing disassembly and protection mechanisms into the coal feeding device of the rocker arm boiler, the problem of inconvenient coal hopper disassembly has been solved, enabling convenient cleaning and protection, and improving the service life and conveying efficiency of the equipment.

CN224094501UActive Publication Date: 2026-04-07WUXI DONGBEITANG BOILER ACCESSORIES FACTORY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The coal hopper of the existing rocker arm boiler coal feeding device is not easy to disassemble manually, which makes cleaning difficult. Coal inside is easy to stick and affect the conveying efficiency. It is also prone to damage after long-term use.

Method used

A rocker arm boiler coal feeding device suitable for pit coal hoppers was designed. By setting up a disassembly and assembly mechanism and a protective mechanism, the disassembly and assembly mechanism includes a connecting seat, mounting rod, convex column, slot, movable block, etc., to realize convenient disassembly of the coal hopper; the protective mechanism includes hollow column, solid column, spring, and anti-collision plate to provide buffer protection.

Benefits of technology

It enables convenient disassembly and cleaning of the coal hopper, prevents internal coal from sticking, extends the service life of the coal hopper, avoids coal leakage, and improves conveying efficiency and equipment durability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224094501U_ABST
    Figure CN224094501U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of coaling devices, and discloses a rocker arm type boiler coaling device suitable for a pit coal bucket, which comprises a lifting device, a rocker arm arranged at the lower part of the lifting device, a coal bucket arranged at the lower end of the rocker arm, a first lifting ring fixedly connected to the upper part of the rocker arm, and a second lifting ring fixedly connected to the right side of the coal bucket, the connecting assembly is arranged on one side of the coal bucket, the connecting assembly comprises a dismounting mechanism arranged on the upper portion of the coal bucket, a protection mechanism is arranged on the lower portion of the coal bucket, the inclined face clamping block movably penetrates through the connecting base and is connected with the clamping groove in a clamped mode, and the convex column is connected into the convex groove in a sliding mode. The rocker arm type boiler coaling device solves the problems that in the using process of an existing rocker arm type boiler coaling device, a coal bucket is not convenient to disassemble manually, so that the interior of the coal bucket is not convenient to clean manually, and after the coal bucket is used for a long time, part of coal is prone to being stuck to the interior of the coal bucket, so that the follow-up coal conveying efficiency is affected.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of coal feeding devices, specifically a rocker arm boiler coal feeding device suitable for underground coal hoppers. Background Technology

[0002] Coal feeders are the main coal feeding equipment for coal-fired boilers and also one of the boiler's auxiliary equipment. Commonly used coal feeding equipment includes electric hoists, single bucket elevators, multi-bucket elevators, belt conveyors, etc. Smaller capacity boilers mostly use single bucket elevators. The rocker arm type coal feeding device mainly consists of coal buckets, rocker arms, and lifting mechanisms. The coal buckets are fed into the boiler evenly through the lifting and turning movements of the rocker arms.

[0003] However, in the existing rocker-arm boiler coal feeding device, the coal hopper is not easy to disassemble manually, making it difficult to clean the inside of the coal hopper manually. After long-term use, some coal is easily stuck inside the coal hopper, which affects the efficiency of subsequent coal conveying.

[0004] To address this issue, we propose a rocker arm boiler coal feeding device suitable for underground coal hoppers. Utility Model Content

[0005] The purpose of this invention is to provide a rocker arm boiler coal feeding device suitable for underground coal hoppers, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rocker arm boiler coal feeding device suitable for underground coal hoppers, including a hoisting device;

[0007] A rocker arm located at the bottom of the lifting device;

[0008] A coal hopper located at the lower end of the rocker arm;

[0009] The first lifting ring is fixedly connected to the upper part of the rocker arm;

[0010] The second lifting ring is fixedly connected to the right side of the coal hopper;

[0011] And a connecting component disposed on one side of the coal hopper, the connecting component including a disassembly and assembly mechanism disposed on the upper part of the coal hopper, and a protective mechanism disposed on the lower part of the coal hopper.

[0012] Preferably, the disassembly and assembly mechanism includes a connecting seat movably connected to the bottom end of the rocker arm via a pin. The bottom of the connecting seat has a convex groove. An installation rod is fixedly connected to the inner wall of the coal hopper. A convex column is fixedly connected to the upper part of the installation rod. A slot is formed on the upper part of the convex column. An inner groove is formed inside the connecting seat. A movable block is slidably connected to the inner wall of the inner groove. An inclined block is fixedly connected to one side of the movable block. A connecting rod is fixedly connected to the side of the movable block away from the inclined block. A first spring is fixedly connected to the inner wall of the inner groove. A limit block is fixedly connected to the outer end of the connecting rod. A pull rod is fixedly connected to the outer side of the limit block.

[0013] Preferably, the protective mechanism includes a hollow column fixedly connected to the lower part of the coal hopper, a solid column sleeved inside the hollow column, a second spring fixedly connected to the inner wall of the hollow column, and a crash plate fixedly connected to the bottom end of the solid column.

[0014] Preferably, the inclined plate block is movably connected through the connecting seat and the slot, the convex column is slidably connected in the convex groove, and one end of the first spring is fixedly connected to the movable block. Through the cooperation of the connecting seat, the mounting rod, the convex column, the slot, the convex groove, the inner groove, the movable block, the inclined plate block, the connecting rod, the first spring, the limiting block, and the pull rod, it is convenient for manual disassembly of the coal hopper, thereby facilitating manual cleaning of the inside of the coal hopper. This can prevent coal from sticking inside the coal hopper, affecting subsequent conveying. At the same time, broken coal hoppers can be replaced in time to prevent damage inside the coal hopper, thereby preventing coal leakage during conveying.

[0015] Preferably, the connecting rod is movably connected to the connecting seat.

[0016] Preferably, the bottom end of the second spring is fixedly connected to the solid column. Through the cooperation of the hollow column, the solid column, the second spring, and the anti-collision plate, when the coal hopper comes into contact with the ground, it can play a buffering role, reduce the impact between the coal hopper and the ground, thereby protecting the coal hopper and extending its service life.

[0017] Preferably, there are four hollow columns, arranged in pairs and symmetrically distributed at the bottom of the coal hopper.

[0018] This utility model provides a rocker arm type coal feeding device for a coal hopper in a sewer. This rocker arm type coal feeding device for a coal hopper in a sewer has the following beneficial effects:

[0019] (1) The rocker arm boiler coal feeding device applicable to pit coal hopper, by setting up a disassembly and assembly mechanism, under the action of connecting seat, mounting rod, convex column, card slot, convex groove, inner groove, movable block, inclined card block, connecting rod, first spring, limit block, and pull rod, facilitates manual disassembly of the coal hopper, thereby facilitating manual cleaning of the inside of the coal hopper, preventing coal from sticking inside the coal hopper and affecting subsequent conveying, and at the same time, timely replacement of broken coal hoppers can prevent damage inside the coal hopper, thereby preventing coal leakage during conveying.

[0020] (2) The rocker arm boiler coal feeding device applicable to the pit coal hopper, by setting up a protective mechanism, under the action of hollow column, solid column, second spring and anti-collision plate, can play a buffering effect when the coal hopper comes into contact with the ground, which can reduce the impact between the coal hopper and the ground, thereby protecting the coal hopper and extending the service life of the coal hopper. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the protective mechanism structure of this utility model;

[0025] In the diagram: 1. Lifting device; 2. Rocker arm; 3. Connecting assembly; 31. Disassembly and assembly mechanism; 311. Connecting seat; 312. Mounting rod; 313. Convex column; 314. Slot; 315. Convex groove; 316. Inner groove; 317. Movable block; 318. Inclined block; 319. Connecting rod; 3110. First spring; 3111. Limiting block; 3112. Pull rod; 32. Protective mechanism; 321. Hollow column; 322. Solid column; 323. Second spring; 324. Anti-collision plate; 4. Coal hopper; 5. First lifting ring; 6. Second lifting ring. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-4As shown, this utility model provides a technical solution: a rocker arm boiler coal feeding device suitable for pit coal hoppers, including a lifting device 1, a rocker arm 2 disposed at the lower part of the lifting device 1, a coal hopper 4 disposed at the lower end of the rocker arm 2, a first lifting ring 5 fixedly connected to the upper part of the rocker arm 2, a second lifting ring 6 fixedly connected to the right side of the coal hopper 4, and a connecting assembly 3 disposed on one side of the coal hopper 4. The connecting assembly 3 includes a disassembly and assembly mechanism 31 disposed at the upper part of the coal hopper 4, and a protective mechanism 32 disposed at the lower part of the coal hopper 4. The disassembly and assembly mechanism 31 includes a connecting seat 311 movably connected to the bottom end of the rocker arm 2 by a pin, and the bottom of the connecting seat 311 has a convex groove 31. 5. An installation rod 312 is fixedly connected to the inner wall of the coal hopper 4. A convex column 313 is fixedly connected to the upper part of the installation rod 312. A slot 314 is opened on the upper part of the convex column 313. An inner groove 316 is opened inside the connecting seat 311. A movable block 317 is slidably connected to the inner wall of the inner groove 316. An inclined block 318 is fixedly connected to one side of the movable block 317. A connecting rod 319 is fixedly connected to the side of the movable block 317 away from the inclined block 318. A first spring 3110 is fixedly connected to the inner wall of the inner groove 316. A limit block 3111 is fixedly connected to the outer end of the connecting rod 319. A pull rod 3112 is fixedly connected to the outer side of the limit block 3111.

[0029] In this embodiment, the inclined plate block 318 is movably connected through the connecting seat 311 and the slot 314, the convex column 313 is slidably connected in the convex groove 315, and one end of the first spring 3110 is fixedly connected to the movable block 317. Through the cooperation of the connecting seat 311, the mounting rod 312, the convex column 313, the slot 314, the convex groove 315, the inner groove 316, the movable block 317, the inclined plate block 318, the connecting rod 319, the first spring 3110, the limiting block 3111, and the pull rod 3112, it is convenient for manual disassembly of the coal hopper 4, thereby facilitating manual cleaning of the inside of the coal hopper 4. This can prevent coal from sticking inside the coal hopper 4 and affecting subsequent conveying. At the same time, broken coal hoppers 4 can be replaced in time to prevent damage inside the coal hopper 4, thereby preventing coal leakage during the conveying process.

[0030] Furthermore, the connecting rod 319 is movably connected to the connecting seat 311.

[0031] When using this device, the lifting device 1 is first installed manually at the coal inlet of the boiler. Then, the rocker arm 2 is installed at the designated position on the boiler via the mounting plate, and the rocker arm 2 is movably connected to the mounting plate. Then, the device is manually connected to the first lifting ring 5, the second lifting ring 6, and the lifting device 1 with a steel rope, and the coal hopper 4 can then be lifted. When the coal hopper 4 needs to be disassembled, the pull rod 3112 is manually held and the limiting block 3111 is pulled upward, which causes the connecting rod 319 fixedly connected to the inner side of the limiting block 3111 to move the movable block 317 upward synchronously. This allows the inclined locking block 318 fixedly connected to one side of the movable block 317 to separate from the locking groove 314. Then, under the action of the convex column 313 and the convex groove 315, the coal hopper 4 can be removed. The inside of the coal hopper 4 can then be cleaned, and the holes inside the coal hopper 4 can be inspected and maintained, thus increasing the applicability of the device.

[0032] Example 2

[0033] Based on Embodiment 1, a preferred embodiment of the rocker arm boiler coal feeding device suitable for underground coal hoppers provided by this utility model is, for example... Figures 1 to 4 As shown: The protective mechanism 32 includes a hollow column 321 fixedly connected to the lower part of the coal hopper 4, a solid column 322 sleeved inside the hollow column 321, a second spring 323 fixedly connected to the inner wall of the hollow column 321, and a crash plate 324 fixedly connected to the bottom end of the solid column 322.

[0034] In this embodiment, the bottom end of the second spring 323 is fixedly connected to the solid column 322. Through the cooperation of the hollow column 321, the solid column 322, the second spring 323, and the anti-collision plate 324, when the coal hopper 4 comes into contact with the ground, it can play a buffering role, reduce the impact of the coal hopper 4 on the ground, thereby protecting the coal hopper 4 and extending the service life of the coal hopper 4.

[0035] Furthermore, there are four hollow columns 321, arranged in pairs, symmetrically distributed at the bottom of the coal hopper 4.

[0036] When the coal hopper 4 descends and is about to contact the ground, the anti-collision plate 324 set at the lower part of the coal hopper 4 will contact the ground first, so that the solid column 322 and the hollow column 321 fixedly connected to the upper part of the anti-collision plate 324 will move relative to each other, which will cause the second spring 323 to deform. Under the action of the elastic force, the second spring 323 can buffer the coal hopper 4, thereby protecting the coal hopper 4 and extending the service life of the coal hopper 4.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rocker arm boiler coal feeding device suitable for pit coal hoppers, including a hoisting device (1). A rocker arm (2) is installed at the bottom of the lifting device (1); Coal hopper (4) is set at the lower end of rocker arm (2); The first lifting ring (5) is fixedly connected to the upper part of the rocker arm (2); The second lifting ring (6) is fixedly connected to the right side of the coal hopper (4); And a connecting assembly (3) disposed on one side of the coal hopper (4), characterized in that: The connecting component (3) includes a disassembly and assembly mechanism (31) provided on the upper part of the coal hopper (4), and a protective mechanism (32) provided on the lower part of the coal hopper (4).

2. The rocker arm boiler coal feeding device for underground coal hoppers according to claim 1, characterized in that: The disassembly and assembly mechanism (31) includes a connecting seat (311) movably connected to the bottom end of the rocker arm (2) by a pin. The bottom of the connecting seat (311) is provided with a convex groove (315). An installation rod (312) is fixedly connected to the inner wall of the coal hopper (4). A convex column (313) is fixedly connected to the upper part of the installation rod (312). A slot (314) is provided on the upper part of the convex column (313). An inner groove (316) is provided inside the connecting seat (311). 6) A movable block (317) is slidably connected to the inner wall. A sloped block (318) is fixedly connected to one side of the movable block (317). A connecting rod (319) is fixedly connected to the side of the movable block (317) away from the sloped block (318). A first spring (3110) is fixedly connected to the inner wall of the inner groove (316). A limit block (3111) is fixedly connected to the outer end of the connecting rod (319). A pull rod (3112) is fixedly connected to the outer side of the limit block (3111).

3. The rocker arm boiler coal feeding device for underground coal hoppers according to claim 1, characterized in that: The protective mechanism (32) includes a hollow column (321) fixedly connected to the lower part of the coal hopper (4), a solid column (322) is sleeved inside the hollow column (321), a second spring (323) is fixedly connected to the inner wall of the hollow column (321), and a crash plate (324) is fixedly connected to the bottom end of the solid column (322).

4. The rocker arm boiler coal feeding device for underground coal hoppers according to claim 2, characterized in that: The inclined block (318) is movably connected to the connecting seat (311) and the slot (314) and is engaged. The convex column (313) is slidably connected in the convex groove (315). One end of the first spring (3110) is fixedly connected to the movable block (317).

5. The rocker arm boiler coal feeding device for underground coal hoppers according to claim 2, characterized in that: The connecting rod (319) is movably connected to the connecting seat (311).

6. The rocker arm boiler coal feeding device for pit coal hoppers according to claim 3, characterized in that: The bottom end of the second spring (323) is fixedly connected to the solid column (322).

7. The rocker arm boiler coal feeding device for pit coal hoppers according to claim 3, characterized in that: There are four hollow columns (321), arranged in pairs and symmetrically distributed at the bottom of the coal hopper (4).