CN-224201721-U - Driving device

CN224201721UCN 224201721 UCN224201721 UCN 224201721UCN-224201721-U

Abstract

The utility model solves the problem of the variation of the hydraulic cylinder relative to the reciprocating drive. A driving device (2) for driving a grate sheet (2) of a grate-type incinerator (1A) is provided with a working cylinder (4) disposed on a steel frame (7) provided outside the incinerator (1A) and reciprocating in a linear Movement Direction (MD) toward the inside of the incinerator (1A), a rod (5) connected to the working cylinder at the front end (4A) side in the Movement Direction (MD) and extending in the Movement Direction (MD) toward the inside of the incinerator (1A), a beam (6) connected to the rod (5) at the front end (5A) side in the Movement Direction (MD) and extending in the Movement Direction (MD) and supporting the grate sheet (2) from below, a supporting roller (8) disposed below the beam (6) and supporting the working cylinder, the rod or the beam from below, and a supporting structure for supporting the working cylinder, the rod or the beam so that the working cylinder, the rod or the beam linearly moves in the movement direction during the movement of the working cylinder.

Inventors

ODAKA SHIGEKI
QIU YUANSHENG
Empress fujihiro
YAGI KENJI

Assignees

三菱重工环境·化学工程株式会社

Dates

Publication Date: 20260505
Application Date: 20250515
Priority Date: 20240516

Claims (6)

1. A driving device is used for driving fire grate segments of a fire grate type incinerator, which is characterized in that, The driving device is provided with: A cylinder disposed on a steel frame provided outside the grate incinerator and reciprocating back and forth along a linear movement direction toward the inside of the grate incinerator; a rod that is connected to a front end side of the operation direction with respect to the cylinder and extends toward the inside of the grate incinerator along the operation direction; A beam which is connected to a front end side of the operation direction with respect to the rod, extends along the operation direction, and supports the grate segment from a lower side; a support roller disposed below the beam for supporting the beam from below, and And a support structure that supports the cylinder, the rod, or the beam so that the cylinder, the rod, or the beam linearly moves in the movement direction during movement of the cylinder.
2. The driving device according to claim 1, wherein, The support structure includes: A first support structure that supports the rod or the beam from below at a position that is rearward of the support roller in the operation direction and forward of the front end of the cylinder in the operation direction; a second supporting structure for supporting the beam from the upper side at a position forward of the operation direction of the supporting roller, and And a third support structure for supporting a connection portion for connecting the tip end of the cylinder to the rod from below.
3. The driving device according to claim 2, wherein, The support structure has a roller or a slide plate as a support member that supports the cylinder, the rod, or the beam.
4. The driving device according to claim 2, wherein, The first support structure includes: A first rail fixed to a wall surface of the grate-type incinerator, spaced downward from the beam and extending in the operating direction, and And a roller rotatably mounted to the lower side of the beam and configured to engage with the upper surface of the first rail.
5. The driving device according to claim 2, wherein, The second support structure includes a first slide plate that is fixed to a partition wall disposed in the grate incinerator and slidably engaged with an upper surface of the beam.
6. The driving device according to claim 2, wherein, The third support structure includes: A second rail fixed to the steel frame and extending in the motion direction, and And a second slide plate fixed to the lower surface of the connecting portion and slidably engaged with the upper surface of the second rail.

Description

Driving device Technical Field The present utility model relates to a driving device for driving a fire grate segment of a fire grate type incinerator. Background As combustion equipment for refuse incineration facilities, grate incinerators are known. A grate type incinerator (hereinafter referred to as an incinerator) is configured to reciprocally drive grate segments arranged in the incinerator at a predetermined pitch, and to transport garbage supplied to the grate segments while stirring and mixing the garbage. The grate incinerator is provided with a driving device for driving the grate segments back and forth. As described in patent document 1, the driving device includes a hydraulic cylinder, a rod connected to the hydraulic cylinder, and a beam connected to the tip of the rod and supporting the grate segments from below, and is configured to reciprocate the grate segments back and forth in a linear operation direction by reciprocally driving the hydraulic cylinder. In order to reliably support the grate segments as heavy objects, it is also known to provide support rollers rotatably mounted on the underside of the beams. Prior art literature Patent literature Patent document 1 Japanese patent No. 3794753 Disclosure of utility model Problems to be solved by the utility model However, in the technique of reciprocally driving the grate segments as the weight using the hydraulic cylinder, the rod, and the beam as in patent document 1, the reciprocating motion of the hydraulic cylinder, the rod, or the beam with respect to the straight line tends to easily vary. When the position of the center of gravity of the beam is changed by the load of the refuse loaded on the grate segments, a rotational motion is imparted to the hydraulic cylinder, the rod, and the beam about the support rollers provided on the lower side of the beam during the reciprocating motion. As a result, the linear reciprocating motion of the hydraulic cylinder, the rod, or the beam is disturbed, and the hydraulic cylinder, the rod, or the beam is liable to undergo the above-described fluctuation. The variation occurs either upward or downward with respect to the hydraulic cylinder, rod or beam. In particular, when a beam having an uneven shape, which is a center of gravity of the beam, is used, the above-described rotational movement tends to be easily applied, and the movement tends to be easily generated. That is, in the technique of reciprocally driving the grate segments as the weight using the hydraulic cylinder as in patent document 1, the reciprocal motion of the hydraulic cylinder, the rod, or the beam with respect to the straight line varies, and thus the product life is shortened. In addition, when the connection portions of the hydraulic cylinders, the rods, or the beams are firmly connected to each other to suppress the fluctuation, the connection portions become a factor of cost increase. The present utility model has been made in view of the above-described problems, and an object thereof is to suppress fluctuations in reciprocating motion with respect to a straight line in a driving device for driving a grate segment of a grate furnace. Means for solving the problems The driving device for driving a fire grate segment of a fire grate incinerator is provided with a working cylinder which is arranged on a steel frame arranged outside the fire grate incinerator and reciprocates back and forth along a linear operation direction towards the inside of the fire grate incinerator, a rod which is connected to the front end side of the operation direction relative to the working cylinder and extends towards the inside of the fire grate incinerator along the operation direction, a beam which is connected to the front end side of the operation direction relative to the rod and extends along the operation direction, a supporting roller which is arranged below the beam and supports the beam from below, and a supporting structure which supports the working cylinder, the rod or the beam so that the working cylinder, the rod or the beam linearly operates along the operation direction during the operation of the working cylinder. Effects of the utility model According to the present utility model, since the support structure is provided, the cylinder, the rod, or the beam is supported so that the cylinder, the rod, or the beam linearly moves in the movement direction during the movement of the cylinder, and thus, the movement of the cylinder, the rod, or the beam with respect to the reciprocating movement can be suppressed. Drawings Fig. 1 is a side view showing a driving device according to the present embodiment together with a grate incinerator. Fig. 2 is a cross-sectional view taken along line a-a of fig. 1 illustrating a first support configuration. Fig. 3 is a cross-sectional view taken along line B-B of fig. 2 illustrating a first support configuration. Fig. 4 is a cross-sectional view taken along line C-C of fig. 1 illustrating a s