阅读说明：本技术 一种篦床双向自动纠偏支承装置 (Bidirectional automatic deviation-rectifying supporting device of grate bed ) 是由 钱旺龙 许广丰 滕焕银 谭长明 杨永清 于 2021-02-02 设计创作，主要内容包括：本发明公开了一种篦床双向自动纠偏支承装置,包括驱动梁、托轮纠偏支撑装置及支撑梁；驱动梁固定连接在篦床的底部,支撑梁固定连接在篦冷机立柱上,托轮纠偏支撑装置由若干纠偏支撑单元组成,纠偏支撑单元包括主轴单元及托轮单元,主轴单元通过调心轴承单元可转动地安装在支撑梁的上表面,托轮单元滚动支撑在驱动梁底部的轨道上支撑驱动梁做直线运动,且托轮单元与两轨道内侧面滑动卡合连接限制驱动梁运行时的偏移。本发明可提高设备的运行效率,减小设备故障率,降低设备磨损,提高设备使用寿命。(The invention discloses a bidirectional automatic deviation rectifying supporting device of a grate bed, which comprises a driving beam, a supporting wheel deviation rectifying supporting device and a supporting beam, wherein the driving beam is arranged on the supporting wheel; the driving beam is fixedly connected to the bottom of the grate bed, the supporting beam is fixedly connected to a vertical column of the grate cooler, the supporting wheel deviation rectifying and supporting device is composed of a plurality of deviation rectifying and supporting units, each deviation rectifying and supporting unit comprises a main shaft unit and a supporting wheel unit, the main shaft unit is rotatably installed on the upper surface of the supporting beam through a self-aligning bearing unit, the supporting wheel units are supported on the rails at the bottom of the driving beam in a rolling mode to support the driving beam to move linearly, and the supporting wheel units are connected with the inner side surfaces of the two rails in a sliding clamping mode to limit deviation of the. The invention can improve the operation efficiency of the equipment, reduce the failure rate of the equipment, reduce the abrasion of the equipment and prolong the service life of the equipment.)

1. A bidirectional automatic deviation rectifying supporting device of a grate bed is characterized by comprising a driving beam, a riding wheel deviation rectifying supporting device and a supporting beam; the driving beam is fixedly connected to the bottom of the grate bed and consists of a plurality of driving beam units, two rails extending along the length direction of the grate bed are arranged at the bottom of each driving beam unit, and the plurality of driving beam units are driven by one driving device to do synchronous linear motion; the support beam is fixedly connected to the vertical column of the grate cooler; the riding wheel deviation-rectifying supporting device is composed of a plurality of deviation-rectifying supporting units which are in one-to-one correspondence with the driving beam units, each deviation-rectifying supporting unit comprises a main shaft unit and riding wheel units which are rotatably arranged at two ends of the main shaft unit through first aligning bearing units, the main shaft unit is rotatably arranged on the upper surface of each supporting beam through second aligning bearing units, the riding wheel units are supported on the rails at the bottoms of the driving beams in a rolling mode to support the driving beams to move linearly, and the riding wheel units are connected with the inner side surfaces of the two rails in a sliding clamping mode to limit deviation of the driving beams during operation.

2. The grate bed bidirectional automatic deviation rectifying supporting device according to claim 1, wherein the main shaft unit comprises a step-shaped main shaft with a shaft shoulder in the middle and shaft sleeves installed at two ends of the main shaft; the first aligning bearing unit comprises a bearing seat, a first bearing cover and a first double-row aligning roller bearing, the bearing seat is fixed on the supporting beam through a bolt, the first bearing cover is connected with the bearing seat through a bolt, the first double-row aligning roller bearing is installed in the bearing seat, a bearing inner ring is positioned through a shaft shoulder and a shaft sleeve, a bearing outer ring is positioned through the first bearing cover, a lubricating oil cavity is separated from the two rows of bearings through the shaft shoulder, and the lubricating oil cavity is communicated with a first oil nozzle arranged on the bearing seat.

3. The grate bed bidirectional automatic deviation rectifying and supporting device as claimed in claim 2, wherein the riding wheel unit comprises a riding wheel body, the outer circumferential surface of the riding wheel body forms a supporting surface, the outer circumferential surface of one side of the riding wheel body protrudes radially outwards to form a blocking part, a bearing mounting cavity is arranged in the riding wheel body, the second aligning bearing unit comprises a second double-row aligning roller bearing, a second bearing cover, a stop gasket and a lock nut, the second double-row aligning roller bearing is mounted in the bearing mounting cavity, the second bearing cover is connected with the riding wheel body through a bolt to seal the bearing mounting cavity, and the bearing mounting cavity is communicated with a second oil nozzle arranged on the second bearing cover; the bearing outer ring is positioned through the second bearing gland and a flange arranged on the riding wheel body, and the bearing inner ring is positioned through a shaft shoulder, a stop washer and a locking nut.

4. The grate bed bidirectional automatic deviation rectifying supporting device according to claim 3, wherein a sealing felt is arranged between the supporting roller body and the main shaft.

5. The grate bed bidirectional automatic deviation rectifying supporting device of claim 3, wherein the driving beam unit mainly comprises a main beam, a reinforcing rib, a connecting bolt and a track, the main beam is made of section steel, the reinforcing rib is used for enhancing the strength and rigidity of the section steel, the track is fixed on the reinforcing rib at the bottom of the main beam through the connecting bolt, two opposite inner side surfaces of the two tracks are first friction surfaces, the bottom surface of the track is a second friction surface, the first friction surface is in sliding friction contact with the side surface of the supporting wheel blocking part, and the second friction surface is in rolling friction contact with the supporting surface of the supporting wheel body.

6. The grate bed bidirectional automatic deviation rectifying supporting device according to claim 5, wherein the main beam is provided with vent holes.

7. The grate bed bidirectional automatic deviation rectifying supporting device according to claim 1, wherein the driving device is a driving motor or a hydraulic cylinder.

Technical Field

The invention relates to the technical field of grate coolers, in particular to a bidirectional automatic deviation rectifying supporting device for a grate bed.

Background

The grate cooler is an important device in a clinker firing system of a cement plant, and has the main functions of cooling and conveying cement clinker; meanwhile, hot air is provided for equipment such as a rotary kiln, a decomposing furnace and the like. The grate cooler is operated for a long time under the conditions of high load or poor working conditions, so that the main beam and parts of the grate cooler are often greatly deformed and abraded, at the moment, the operation track of the grate cooler deviates, if the deviation is greatly different from the design quantity, equipment accidents can happen to the grate bed of the grate cooler, the cooling effect of the grate cooler is greatly influenced, and the clinker quality is reduced.

The existing grate cooler usually uses four connecting rods, supporting wheels and blocking wheels to support the whole grate bed, and a supporting structure consisting of the four connecting rods, the supporting wheels and the blocking wheels can enable the grate bed to do linear motion in the operation process, but when external force is applied or clinker on the grate bed is unevenly distributed, opposite supporting devices on a main beam of the same module are stressed differently, the grate bed can deviate in operation, the grate bed can be partially inclined due to long-time operation deviation, and the abrasion of parts of the grate bed is aggravated.

Disclosure of Invention

The invention aims to provide a bidirectional automatic deviation rectifying supporting device for a grate bed, which can automatically adjust the grate bed of a grate cooler to do linear motion and correct the operation deviation of the grate bed.

The technical scheme adopted by the invention is as follows:

a bidirectional automatic deviation rectifying supporting device of a grate comprises a driving beam, a riding wheel deviation rectifying supporting device and a supporting beam; the driving beam is fixedly connected to the bottom of the grate bed and consists of a plurality of driving beam units, two rails extending along the length direction of the grate bed are arranged at the bottom of each driving beam unit, and the plurality of driving beam units are driven by one driving device to do synchronous linear motion; the support beam is fixedly connected to the vertical column of the grate cooler; the riding wheel deviation-rectifying supporting device is composed of a plurality of deviation-rectifying supporting units which are in one-to-one correspondence with the driving beam units, each deviation-rectifying supporting unit comprises a main shaft unit and riding wheel units which are rotatably arranged at two ends of the main shaft unit through first aligning bearing units, the main shaft unit is rotatably arranged on the upper surface of each supporting beam through second aligning bearing units, the riding wheel units are supported on the rails at the bottoms of the driving beams in a rolling mode to support the driving beams to move linearly, and the riding wheel units are connected with the inner side surfaces of the two rails in a sliding clamping mode to limit deviation of the driving beams during operation.

Further, the main shaft unit comprises a step-shaped main shaft with a shaft shoulder in the middle and shaft sleeves arranged at two ends of the main shaft; the first aligning bearing unit comprises a bearing seat, a first bearing cover and a first double-row aligning roller bearing, the bearing seat is fixed on the supporting beam through a bolt, the first bearing cover is connected with the bearing seat through a bolt, the first double-row aligning roller bearing is installed in the bearing seat, a bearing inner ring is positioned through a shaft shoulder and a shaft sleeve, a bearing outer ring is positioned through the first bearing cover, a lubricating oil cavity is separated from the two rows of bearings through the shaft shoulder, and the lubricating oil cavity is communicated with a first oil nozzle arranged on the bearing seat.

The supporting roller unit comprises a supporting roller body, a supporting surface is formed on the outer circumferential surface of the supporting roller body, a blocking part is formed on the outer circumferential surface of one side of the supporting roller body in a radially outward protruding mode, a bearing installation cavity is formed in the supporting roller body, the second self-aligning bearing unit comprises a second double-row self-aligning roller bearing, a second bearing cover, a stop gasket and a locking nut, the second double-row self-aligning roller bearing is installed in the bearing installation cavity, the second bearing cover is connected with the supporting roller body through a bolt to seal the bearing installation cavity, and the bearing installation cavity is communicated with a second oil nozzle arranged on the second bearing cover; the bearing outer ring is positioned through the second bearing gland and a flange arranged on the riding wheel body, and the bearing inner ring is positioned through a shaft shoulder, a stop washer and a locking nut.

Furthermore, a sealing felt is arranged between the riding wheel body and the main shaft.

Furthermore, the driving beam unit mainly comprises a main beam, reinforcing ribs, connecting bolts and rails, wherein the reinforcing ribs are used for enhancing the strength and rigidity of the section steel, the rails are fixed on the reinforcing ribs at the bottom of the main beam through the connecting bolts, two opposite inner side surfaces of the two rails are first friction surfaces, the bottom surfaces of the rails are second friction surfaces, the first friction surfaces are in sliding friction contact with the outer surfaces of the supporting wheel blocking parts, and the second friction surfaces are in rolling friction contact with the supporting surfaces of the supporting wheel bodies.

Furthermore, the main beam is provided with a vent hole.

Further, the driving device is a driving motor or a hydraulic cylinder.

The invention has the beneficial effects that: according to the invention, the riding wheel deviation-rectifying supporting device is arranged between the driving beam and the supporting beam, and a riding wheel unit of the riding wheel deviation-rectifying supporting device supports the driving beam to do linear motion in a rolling manner, so that sliding friction is changed into rolling friction, and the running resistance of the driving beam is reduced; the riding wheel unit is connected with the side surface of the driving beam rail in a sliding clamping mode to limit deviation of the driving beam during operation, the self-aligning roller bearing of the riding wheel deviation correcting and supporting device can bear radial load and bidirectional axial load, the riding wheel deviation correcting and supporting device has automatic aligning performance, and axis misalignment caused by deflection and non-concentricity of a shaft or a grate bed can be automatically adjusted, so that the operation track of the grate bed is automatically adjusted. The invention can improve the operation efficiency of the equipment, reduce the failure rate of the equipment, reduce the abrasion of the equipment and prolong the service life of the equipment.

Drawings

FIG. 1 is a schematic structural diagram of the bidirectional automatic deviation rectifying supporting device of the grate bed of the invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a partially enlarged view of one of the structural units of fig. 1.

FIG. 4 is a schematic structural diagram of a driving beam unit of the bidirectional automatic deviation rectifying supporting device of the grate bed of the invention.

Fig. 5 is a side view of fig. 4.

FIG. 6 is a schematic structural diagram of a rectification support unit of the bidirectional automatic rectification support device of the grate bed.

FIG. 7 is a schematic cross-sectional view of the support part of the support beam of the bidirectional automatic deviation rectifying support device of the grate bed of the present invention.

Detailed Description

In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.

Referring to fig. 1 to 7, the embodiment provides a bidirectional automatic deviation rectifying supporting device for a grate bed, which includes a driving beam 1, a supporting wheel deviation rectifying supporting device 2 and a supporting beam 3; the driving beam 1 is fixedly connected to the bottom of the grate bed and consists of a plurality of driving beam units, two rails extending along the length direction of the grate bed are arranged at the bottom of each driving beam unit, and the plurality of driving beam units are driven by a driving device to synchronously move linearly; the supporting beam 3 is fixedly connected to the vertical column of the grate cooler; the supporting roller deviation rectifying and supporting device 2 is composed of a plurality of deviation rectifying and supporting units which are in one-to-one correspondence with the driving beam units, each deviation rectifying and supporting unit comprises a main shaft unit and supporting roller units which are rotatably arranged at two ends of the main shaft unit through a first aligning bearing unit, the main shaft unit is rotatably arranged on the upper surface of a supporting beam through a second aligning bearing unit, the supporting roller units are supported on the rails at the bottom of the driving beam in a rolling mode to support the driving beam to move linearly, and the supporting roller units are connected with the inner side surfaces of the two rails in a sliding clamping mode to limit deviation of the driving beam during. The structural components are explained in detail below.

In the present embodiment, the driving beam 1 is composed of four driving beam units, and the structure of the first driving beam unit 1-1 is described in detail by taking the first driving beam unit 1-1 as an example, as shown in fig. 4 and 5, the first driving beam unit 1-1 is composed of a main beam 1-1-1, a reinforcing rib 1-1-3, a connecting bolt 1-1-4 and a track 1-1-2. The main beam 1-1-1 is formed by welding I-steel and steel plates, the reinforcing rib plates 1-1-3 are made of steel plates, and the reinforcing rib plates are welded on the main beam 1-1-1 and used for preventing the main beam 1-1-1 from deforming due to stress. The bottom of the main beam 1-1-1 is provided with two reinforcing ribs, the two rails 1-1-2 are connected to the reinforcing rib plate at the bottom of the main beam 1-1-1 through connecting bolts 1-1-4, the two rails 1-1-2 are symmetrically arranged and are parallel to each other relative to the two inner side surfaces, the two inner side surfaces are first friction surfaces, and the bottom surfaces of the rails are second friction surfaces. The length of the rails 1-1-2 depends on the stroke of the driving means, which may be electric motors or hydraulic cylinders, and the four driving beam units may be driven simultaneously by one driving means, which is prior art and will not be described in detail here. The main beam 1-1-1 is provided with vent holes 1-1-5 for passing cooling air of materials in the cooling grate bed. In other embodiments, the number of drive beam units may be selected according to the actual width of the grate bed.

In this embodiment, the supporting roller deviation rectifying supporting device 2 is composed of four deviation rectifying supporting units, the structure of which is described in detail by taking the first deviation rectifying supporting unit 2-1 as an example, as shown in FIG. 6, the first deviation rectifying support unit 2-1 mainly comprises a riding wheel 2-1-1, a main shaft 2-1-2, a bearing seat 2-1-3, a first bearing cover 2-1-5, a second bearing cover 2-1-4, a first self-aligning roller bearing 2-1-62, a second self-aligning roller bearing 2-1-61, a shaft sleeve 2-1-7, a stop washer 2-1-8, a locking nut 2-1-9, a first oil nozzle 2-1-13, a second oil nozzle 2-1-10, a sealing felt 2-1-11 and a connecting bolt 2-1-12.

The main shaft 2-1-2 and the shaft sleeve 2-1-7 form a main shaft unit, the main shaft 2-1-2 is designed into a stepped shaft form with a large middle and two small ends, a shaft shoulder is formed at the joint of the large diameter and the small diameter, and the shaft shoulder is used for positioning an inner ring of the bearing. The shaft sleeve 2-1-7 is arranged on the main shaft in an interference fit manner and used for positioning the bearing and the riding wheel.

The bearing seat 2-1-3, the first bearing cover 2-1-5, the first oil nozzle 2-1-13 and the first self-aligning roller bearing 2-1-62 form a first self-aligning bearing unit, the bearing seat 2-1-3 is fixed on the supporting beam 3 through bolts, the first bearing cover 2-1-5 is connected with the bearing seat 2-1-3 through bolts, the first self-aligning roller bearing is provided with two rows of bearings which are respectively sleeved on two shaft shoulders at the center of the main shaft 2-1-2, the two rows of bearings are separated into lubricating oil cavities through the shaft shoulders, and the lubricating oil cavities are communicated with the first oil nozzle 2-1-13 arranged on the bearing seat 2-1-3. The bearing inner ring of the first self-aligning roller bearing 2-1-62 is positioned through a shaft shoulder and a shaft sleeve 2-1-7, and the bearing outer ring is positioned through a first bearing cover 2-1-5. Lubricating oil is supplemented into the bearing seats 2-1-3 through the first oil nozzles, and lubrication of the first self-aligning roller bearings 2-1-62 is guaranteed.

The second self-aligning bearing unit is composed of a second bearing pressure cover 2-1-4, a second self-aligning roller bearing 2-1-61, a stop gasket 2-1-8, a locking nut 2-1-9 and a second oil nozzle 2-1-10, a supporting surface is formed on the outer circumferential surface of the riding wheel 2-1-1, a blocking part is formed on the outer circumferential surface of one side of the riding wheel body in a protruding mode in the radial direction, a bearing installation cavity is formed in the riding wheel body, and the second bearing pressure cover 2-1-4 is connected with the riding wheel 2-1-1 through a connecting bolt 2-1-12 to close the bearing installation cavity. The second self-aligning roller bearings 2-1-61 are installed in pairs in the bearing installation cavities, and the bearing installation cavities are communicated with the second oil nozzles 2-1-10 arranged on the second bearing gland 2-1-4. The bearing outer ring of the second self-aligning roller bearing 2-1-61 is positioned through the second bearing gland 2-1-4 and a flange arranged in the riding wheel 2-1-1, and the bearing inner ring is positioned through a shaft shoulder, a stop washer 2-1-8 and a lock nut 2-1-9. Lubricating oil is supplemented through the second oil nozzle 2-1-10, and lubrication of the second self-aligning roller bearing 2-1-61 is guaranteed. The side surface of the blocking part of the riding wheel 2-1-1 and the outer circumferential surface of the riding wheel body are preferably subjected to heat treatment, such as surface quenching, so that the surface hardness of the riding wheel is improved, and the wear resistance is improved.

The supporting beam 3 is formed by welding profile steels, the supporting beam 3 is provided with supporting parts which correspond to the deviation rectifying supporting units of the supporting wheel deviation rectifying supporting device 2 one by one, as shown in figure 7, the supporting part of the supporting beam 3 is composed of a supporting beam body, an upper supporting plate 3-1 and a lower supporting plate 3-2, the upper supporting plate 3-1 is provided with an upper bolt hole 3-1-1 for installing a bearing seat 2-2-3, and the lower supporting plate 3-2 is provided with a lower bolt hole 3-2-1 for installing the supporting beam 3.

The working mode of the invention is as follows:

referring to fig. 2, a driving beam 1 is driven to move back and forth by a motor or a hydraulic cylinder, the track surface of the driving beam 1 is in contact with and drives a riding wheel 2-1-1 to do rotary motion, two opposite inner side surfaces of two tracks of the driving beam are in sliding friction contact with the outer surface of a riding wheel blocking part, the bottom surfaces of the two tracks of the driving beam are in rolling friction contact with a supporting surface of a riding wheel body, the riding wheel 2-1-1 supports the driving beam 1 to do linear non-offset motion, when clinker on a grate bed is unevenly distributed and the two sides of the track of the driving beam are stressed differently, a first self-aligning roller bearing 2-1-62 and a second self-aligning roller bearing 2-1-61 automatically align, and the driving beam 1 is guaranteed to do effective linear motion and.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.