A grate structure for preventing cross-flow

Abstract

This utility model discloses an anti-wind-passing grate structure. A drive rod is provided on the outside of the furnace. One end of the drive rod is axially connected to the connecting plate of the adjacent air chamber, and the other end of the connecting plate is axially connected to the transmission rod. An external eccentric wheel is provided on the outside of the furnace cavity of the rotating shaft of each air chamber. The upper end of the external eccentric wheel at the outer end of the adjacent air chamber is axially connected to the connecting plate through the transmission rod. The advantage of this utility model is that, since the drive structure of the rotating shaft is located outside the furnace, unlike the push-pull rod of a traditional boiler that longitudinally passes through multiple air chamber partitions, it will not cause wind-passing.

Description

Technical Field

[0001] This utility model relates to the field of machinery, specifically a grate, and more specifically a transmission structure for a grate. Background Technology

[0002] In traditional reciprocating grate moving frame and push-pull rod, the air chamber partition plate between N air chambers is passed longitudinally, resulting in poor sealing of the air chamber partition plate and causing air leakage between air chambers. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an anti-airflow grate structure, including a fixed grate 8 and a movable grate 7, wherein the movable grate 7 is mounted on a movable frame 6; the movable grate 7 and the fixed grate 8 are spaced apart; a drive rod 1 is provided on the outside of the furnace, and one end of the drive rod 1 is axially connected to the connecting plate 3 of the adjacent air chamber, and the other end of the connecting plate 3 is axially connected to the transmission rod 4; two adjacent air chambers are isolated by air chamber partitions 20; a rotating shaft 2 is provided in each air chamber; the upper end of the outer eccentric wheel 5 at the outer end of the adjacent air chamber is axially connected to the connecting plate 3 via the transmission rod 4. Each air chamber has an outer eccentric wheel 5 installed on the outside of the furnace cavity of the rotating shaft, and the lower end of the outer eccentric wheel 5 is fixedly connected to the rotating shaft 2. Multiple inner eccentric wheels 9 are fixedly installed on the rotating shaft 2 inside the furnace. The upper part of the inner eccentric wheel 9 is axially connected to one end of the transmission plate 10, and the other end of the transmission plate 10 is axially connected to the lower end of the swing plate 11. The middle part of the swing plate 11 is axially connected to the lower end of the swing rod 15 through the rotating shaft 14, and the upper end of the swing rod 15 is axially connected to the positioning shaft 16 of the frame. A swing rod 15 is installed at each end of the movable frame 6, and the swing rod 15 is axially connected to the middle part of the swing plate 11 through the rotating shaft 14.

[0004] The drive rod 1 is connected to the piston rod of the hydraulic cylinder.

[0005] For small boilers, a manual method can be used, with the outer eccentric wheel fixedly connected to the manual lever.

[0006] To ensure the smooth rotation of the rotating shaft 2, the portion of the rotating shaft 2 outside the furnace is fixed on multiple bearings 17.

[0007] Bearings 17 are installed on the rotating shafts at both ends of the inner eccentric wheel 9.

[0008] The lower end of the furnace is provided with an air inlet 12 and an ash discharge outlet 13.

[0009] The advantage of this invention is that, since the drive structure of the rotating shaft is located outside the furnace, unlike the push-pull rod of a traditional boiler that passes longitudinally through multiple air chamber baffles, it does not cause air leakage. Attached Figure Description

[0010] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 for Figure 1 Sectional view of the AA position;

[0012] Figure 3 This is a schematic diagram showing the connection between the inner eccentric wheel and the movable frame.

[0013] Figure 4 This is a schematic diagram showing the connection between the outer eccentric wheel, the inner eccentric wheel, and the movable frame. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings. As shown in the drawings, the present invention includes a fixed grate 8 and a movable grate 7, the movable grate 7 being mounted on a movable frame 6; the movable grate 7 and the fixed grate 8 are spaced apart; a drive rod 1 is provided on the outer side, the drive rod 1 being axially connected to one end of a connecting plate 3 of an adjacent air chamber, and the other end of the connecting plate 3 being axially connected to a transmission rod 4; two adjacent air chambers are separated by an air chamber partition 20; a rotating shaft 2 is provided in each air chamber; the upper end of the outer eccentric wheel 5 at the outer end of the adjacent air chamber is axially connected to the connecting plate 3 via the transmission rod 4; each The outer eccentric wheel 5 is provided on the outside of the furnace cavity of the rotating shaft of the wind chamber, and the lower end of the outer eccentric wheel 5 is fixedly connected to the rotating shaft 2. Multiple inner eccentric wheels 9 are fixedly provided on the rotating shaft 2 inside the furnace. The upper part of the inner eccentric wheel 9 is axially connected to one end of the transmission plate 10, and the other end of the transmission plate 10 is axially connected to the lower end of the swing plate 11. The middle part of the swing plate 11 is axially connected to the lower end of the swing rod 15 through the rotating shaft 14, and the upper end of the swing rod 15 is axially connected to the positioning shaft 16 of the frame. A swing rod 15 is provided at each end of the movable frame 6, and the swing rod 15 is axially connected to the middle part of the swing plate 11 through the rotating shaft 14.

[0015] The drive rod 1 is connected to the piston rod of the hydraulic cylinder.

[0016] For small boilers, a manual method can be used, with the outer eccentric wheel fixedly connected to the manual lever.

[0017] To ensure the smooth rotation of the rotating shaft 2, the portion of the rotating shaft 2 outside the furnace is fixed on multiple bearings 17.

[0018] Bearings 17 are installed on the rotating shafts at both ends of the inner eccentric wheel 9.

[0019] The lower end of the furnace is provided with an air inlet 12 and an ash discharge outlet 13.

[0020] The transmission principle of this utility model is as follows: Under the action of a driving device, such as a hydraulic cylinder or manual operation, the driving rod 1 moves back and forth or drives the outer eccentric wheel 5 to rotate. The outer eccentric wheel 5 is fixed to the rotating shaft 2, so the rotating shaft 2 also rotates. Multiple inner eccentric wheels 9 are set in the part of the rotating shaft inside the furnace. The inner eccentric wheels 9 are also fixed on the rotating shaft 2, so the inner eccentric wheels 9 also rotate. The rotation of the inner eccentric wheels 9 pulls the swing plate 11 to move back and forth through the transmission plate 10. Since the upper end of the swing plate 11 is fixed to the movable frame 6, the back and forth movement of the swing plate 11 will drive the movable frame 6 to move back and forth as well, ultimately driving the reciprocating motion of the movable grate.

[0021] Since the outer eccentric wheel 5 of the adjacent air chamber is connected to the transmission rod 4 through the connecting plate 3, the motion of the drive rod 1 can be transmitted to the rotating shaft 2 of each air chamber.

[0022] In the above transmission structure, in order to prevent motion interference, the connecting shaft hole of the transmission plate 10 can be changed accordingly, such as into a long strip hole. This is a well-known technology and will not be described in detail here.

Claims

1. A grate structure for preventing cross-flow of air, comprising a fixed grate and a movable grate, wherein the movable grate (7) is mounted on a movable frame (6); the movable grate (7) and the fixed grate (8) are spaced apart; characterized in that: A drive rod (1) is installed on the outside of the furnace chamber. The drive rod (1) is axially connected to one end of the connecting plate (3) of the adjacent air chamber, and the other end of the connecting plate (3) is axially connected to the transmission rod (4). Two adjacent air chambers are separated by an air chamber partition (20). A rotating shaft (2) is installed in each air chamber. An external eccentric wheel (5) is installed on the outside of the furnace chamber of the rotating shaft of each air chamber. The upper end of the external eccentric wheel (5) at the outer end of the adjacent air chamber is axially connected to the connecting plate (3) through the transmission rod (4). The lower end of the external eccentric wheel (5) is fixedly connected to the rotating shaft (2). Multiple inner eccentric wheels (9) are fixedly installed on the rotating shaft (2) inside the chamber. The upper part of the inner eccentric wheel (9) is axially connected to one end of the transmission plate (10), and the other end of the transmission plate (10) is axially connected to the lower end of the swing plate (11). The middle part of the swing plate (11) is axially connected to the lower end of the swing rod (15) through the rotating shaft (14), and the upper end of the swing rod (15) is axially connected to the positioning shaft (16) of the frame. A swing rod (15) is installed at each end of the movable frame (6), and the swing rod (15) is axially connected to the middle part of the swing plate (11) through the rotating shaft (14).

2. The anti-cavitation grate structure according to claim 1, characterized in that: The drive rod (1) is connected to the piston rod of the hydraulic cylinder.

3. The anti-cavitation grate structure according to claim 1, characterized in that: The outer eccentric wheel is fixedly connected to the manual lever.

4. The anti-cavitation grate structure according to claim 1, characterized in that: The portion of the rotating shaft (2) outside the furnace is fixed to multiple bearings (17).

5. The anti-cavitation grate structure according to claim 1, characterized in that: Bearings (17) are provided on the rotating shafts at both ends of the inner eccentric wheel (9).

6. The anti-cavitation grate structure according to claim 1, characterized in that: The lower end of the furnace is provided with an air inlet (12) and an ash discharge port (13).

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