CN220398240U - Water-cooling toothed roller - Google Patents

Abstract

The utility model relates to a water-cooling toothed roller, which comprises a toothed roller body, a first water inlet pipe and a water outlet pipe, wherein the two ends of the toothed roller body are respectively connected with a first half shaft and a second half shaft, the first half shaft and the second half shaft are coaxial with the toothed roller body, a cooling cavity is formed in the toothed roller body, the water outlet pipe penetrates through the first half shaft and then is connected with the cooling cavity, a second water inlet pipe is arranged in the second half shaft, one end of the second water inlet pipe is communicated with the cooling cavity, the other end of the second water inlet pipe is closed, and one end of the first water inlet pipe extends into the second water inlet pipe after penetrating through the water outlet pipe. The utility model adopts a cooling mode of single-side water inlet and outlet, can reduce the occupied space of a cooling system, and can enable the cooling liquid to fill the whole cooling cavity by arranging the branch pipes and the throttling flange.

Description

Water-cooling toothed roller

Technical Field

The utility model relates to the technical field of pellet shaft furnace unloading, in particular to a water-cooling toothed roller.

Background

The pellet shaft furnace is one kind of shaft furnace for roasting metallurgical pellet and belongs to the field of metallurgical equipment technology. The high-temperature waste gas after burning the gas fuel (or liquid fuel) is sprayed into the furnace in the combustion chambers at the middle and upper sides of the shaft furnace and moves in the reverse direction with the green pellets moving from top to bottom to heat furnace burden; in addition, cold air is blown into the lower part of the shaft furnace, and the furnace burden is cooled by moving from bottom to top in the furnace, so that in the process of continuously descending the green pellets distributed into the furnace mouth in the shaft furnace, 5 working belts are dried, preheated, roasted, soaked and cooled, sintered into finished metal pellets, and continuously discharged from the lower part of the shaft furnace.

The metal pellets are generally pellets with the diameter of about 15mm, the pellets can be mutually bonded to form a large block in the sintering process, the large block is required to be crushed, a toothed roller unloader is placed at the discharge outlet of the shaft furnace to receive the pellets, the toothed rollers rotate oppositely in pairs under the rotation control, the pellets can fall on the toothed rollers after being sintered at high temperature of the shaft furnace, on one hand, the falling speed (discharging speed) of the pellets can be reduced, and on the other hand, the pellets sintered into the large block can be crushed through the toothed rollers.

The gear roller is under long-term high temperature, high load operation, if not to its cooling, then produces thermal expansion easily, leads to the fracture, in order to prevent that the gear roller from overheated, prolongs the life of gear roller, the cooling cavity has usually been seted up to the inside of gear roller, set up the passageway with cooling cavity intercommunication in the semi-axis of gear roller both sides, two passageways are used for intaking and play water respectively, this kind of cooling mode pipeline is more, the required installation space of cooling system is more, the installation is comparatively loaded down with trivial details.

Disclosure of Invention

Aiming at the defects, the utility model provides the water-cooling toothed roller, which adopts a cooling mode of single-side water inlet and outlet, can reduce the occupied space of a cooling system and is convenient for installing the cooling system.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a water-cooling fluted roller, includes fluted roller body, first inlet tube and drain pipe, the both ends of fluted roller body are connected with first semi-axis and second semi-axis respectively, first semi-axis and second semi-axis are coaxial with the fluted roller body, the cooling cavity has been seted up to the inside of fluted roller body, the drain pipe runs through behind the first semi-axis and is connected with the cooling cavity, be provided with the second inlet tube in the second semi-axis, the one end and the cooling cavity intercommunication of second inlet tube, the other end is sealed, the one end of first inlet tube stretches into in the second inlet tube after passing the drain pipe.

Further, one ends of the drain pipe and the second water inlet pipe, which are connected with the cooling cavity, extend towards the middle part of the cooling cavity, and a gap is reserved between the drain pipe and the second water inlet pipe.

Further, a first branch pipe is radially arranged on the outer side of the part, located in the cooling cavity, of the drain pipe, and a second branch pipe is radially arranged on the outer side of the part, located in the cooling cavity, of the second water inlet pipe.

Further, the first branch pipe and the second branch pipe are parallel to each other and face opposite directions.

Further, the drain pipe and one end of the second water inlet pipe connected with the cooling cavity are both provided with throttling flanges.

Further, the outer diameter and the wall thickness of the drain pipe and the second water inlet pipe are the same.

Further, the wall thickness of the first water inlet pipe is the same as that of the drain pipe, and the ratio of the outer diameter of the first water inlet pipe to the outer diameter of the drain pipe is in the range of 0.5-0.6.

After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:

the water inlet and the water outlet are arranged on the same side of the tooth roller, so that the layout of a cooling system is simplified, the space required by installing the cooling system is saved, the first water inlet pipe is connected into the second water inlet pipe after penetrating through the water outlet pipe, so that cooling water is respectively led into the first half shaft and the second half shaft, finally, the cooling water is led into the cooling cavity through the second water inlet pipe, so that the tooth roller is cooled, the temperature of the tooth roller is reduced, and the cooling water is finally led out from the water outlet pipe;

the lateral pipes are arranged on the outer sides of the drain pipe and the second water inlet pipe, the lateral pipes are radially arranged, and the lateral pipes at the drain pipe are used for draining cooling water to the side wall of the cooling cavity, so that the cooling water can fill the whole cooling cavity, the cooling water can fully flow in the cooling cavity, and the cooling effect is improved; and the throttle valve is arranged at the gap between the drain pipe and the first water inlet pipe and between the second water inlet pipe and the first water inlet pipe, and can reduce the flow of cooling water from the drain pipe and the second water inlet pipe port, so that most of the cooling water flows in the branch pipe.

The utility model will now be described in detail with reference to the drawings and examples.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic cross-sectional view of a throttle flange.

In the drawings, the list of components represented by the various numbers is as follows:

1. a tooth roller body; 11. a cooling cavity; 2. a first water inlet pipe; 3. a drain pipe; 31. a first branch pipe; 4. a first half shaft; 5. a second half shaft; 6. a second water inlet pipe; 61. a second branch pipe; 7. a throttle flange.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, a water-cooling tooth roller comprises a tooth roller body 1, a first water inlet pipe 2 and a water drain pipe 3, wherein two ends of the tooth roller body 1 are respectively connected with a first half shaft 4 and a second half shaft 5, the first half shaft 4 and the second half shaft 5 are coaxial with the tooth roller body 1, a cooling cavity 11 is formed in the tooth roller body 1, the water drain pipe 3 penetrates through the first half shaft 4 and then is connected with the cooling cavity 11, a second water inlet pipe 6 is arranged in the second half shaft 5, one end of the second water inlet pipe 6 is communicated with the cooling cavity 11, the other end of the second water inlet pipe is closed, and one end of the first water inlet pipe 2 extends into the second water inlet pipe 6 after penetrating through the water drain pipe 3.

Specifically, as shown in fig. 1 and fig. 2, the first half shaft 4 and the second half shaft 5 are respectively arranged on the left side and the right side of the tooth roller body 1, the first half shaft 4 and the second half shaft 5 are coaxial with the tooth roller body 1, a shaft sleeve is arranged in a gap between the first half shaft 4 and the second half shaft 5 and the tooth roller body 1 and is used for playing a sealing role, a cylindrical cooling cavity 11 is formed in the tooth roller body 1, and the cooling cavity 11 is coaxial with the tooth roller body 1;

the right end of the drain pipe 3 penetrates through the first half shaft 4 and then stretches into the cooling cavity 1, the second water inlet pipe 6 is positioned in the second half shaft 5, the right end of the second water inlet pipe 6 is fixed at the right end of the second half shaft 5 through a flange and is sealed through the flange, the left end of the second water inlet pipe 6 penetrates through the second half shaft 5 and stretches into the cooling cavity 1, the first water inlet pipe 2 is positioned at the inner side of the drain pipe 3, and the right end of the first water inlet pipe 2 stretches into the second water inlet pipe 6 after penetrating through the right end of the drain pipe 3;

the right side of the drain pipe 3 is provided with a first branch pipe 31 in the radial direction, the left side of the second water inlet pipe 6 is provided with a second branch pipe 61 in the radial direction, and the first branch pipe 31 and the second branch pipe 61 are parallel to each other and open in opposite directions.

As an embodiment, the ends of the drain pipe 3 and the second water inlet pipe 6 connected with the cooling cavity 11 extend towards the middle part of the cooling cavity 11, and a gap is reserved between the drain pipe 3 and the second water inlet pipe 6.

As an embodiment, the outer side of the portion of the drain pipe 3 located in the cooling cavity 11 is radially provided with a first branch pipe 31, and the outer side of the portion of the second water inlet pipe 6 located in the cooling cavity 11 is radially provided with a second branch pipe 61.

As an embodiment, the first branch pipe 31 and the second branch pipe 61 are parallel to each other and are opposite in orientation.

As shown in fig. 2 and 3, as an embodiment, the drain pipe 3 and the second water inlet pipe 6 are provided with a throttle flange 7 at the end connected to the cooling chamber 11.

Preferably, the outer diameter and the wall thickness of the drain pipe 3 and the second water inlet pipe 6 are the same.

Preferably, the wall thickness of the first water inlet pipe 2 is the same as that of the water outlet pipe 3, and the ratio of the outer diameter of the first water inlet pipe 2 to the outer diameter of the water outlet pipe 3 is in the range of 0.5-0.6.

The working principle of the utility model is as follows:

1. the output end of the drain pipe 3 and the input end of the first water inlet pipe 2 are both positioned at the end part of the first half shaft 4, so that the installation space of a cooling system can be saved;

2. the first water inlet pipe 2 is nested in the water outlet pipe 3 and the second water inlet pipe 6, so that cooling water can sequentially pass through the first half shaft 4, the cooling cavity 11 (the toothed roller body 1) and the second half shaft 5, and the cooling water is led out from the second half shaft 5 and flows into the cooling cavity 11 and finally is discharged from the water outlet pipe 3, the circulation of the cooling water is realized, and the cooling effect is ensured;

3. the outer sides of the drain pipe 3 and the second water inlet pipe 6 are respectively provided with a branch pipe, the branch pipe guides the input end of the drain pipe 3 and the output end of the second water inlet pipe 6 to the side wall of the cooling cavity 11, and air in the cooling cavity 11 can be discharged as much as possible when cooling water is injected, so that the cooling cavity can be filled with the cooling water, and the cooling effect is improved;

4. the drain pipe 3 and the second water inlet pipe 6 are provided with a throttle flange 7 at one end in the cooling chamber 11 so that most of the cooling water flows through the branch pipe.

The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.

Claims (7)

1. The utility model provides a water-cooling fluted roller, its characterized in that, including fluted roller body (1), first inlet tube (2) and drain pipe (3), the both ends of fluted roller body (1) are connected with first semi-axis (4) and second semi-axis (5) respectively, first semi-axis (4) and second semi-axis (5) are coaxial with fluted roller body (1), cooling cavity (11) have been seted up to the inside of fluted roller body (1), drain pipe (3) run through behind first semi-axis (4) and are connected with cooling cavity (11), be provided with second inlet tube (6) in second semi-axis (5), the one end and the cooling cavity (11) intercommunication of second inlet tube (6), the other end is sealed, the one end of first inlet tube (2) stretches into in second inlet tube (6) after passing drain pipe (3).

2. The water-cooling toothed roller according to claim 1, characterized in that one end of the drain pipe (3) and one end of the second water inlet pipe (6) connected with the cooling cavity (11) extend towards the middle part of the cooling cavity (11), and a gap is reserved between the drain pipe (3) and the second water inlet pipe (6).

3. The water-cooled toothed roller according to claim 2, characterized in that the outer side of the portion of the drain pipe (3) located in the cooling cavity (11) is radially provided with a first branch pipe (31), and the outer side of the portion of the second water inlet pipe (6) located in the cooling cavity (11) is radially provided with a second branch pipe (61).

4. A water-cooled toothed roller according to claim 3, characterized in that the first branch pipe (31) and the second branch pipe (61) are mutually parallel and facing opposite.

5. The water-cooled toothed roll according to claim 3 or 4, characterized in that the drain pipe (3) and the second water inlet pipe (6) are provided with a throttling flange (7) at the end connected to the cooling chamber (11).

6. The water-cooled toothed roll according to claim 1, characterized in that the outer diameter and the wall thickness of the drain pipe (3) and the second water inlet pipe (6) are identical.

7. The water-cooled toothed roll according to claim 6, characterized in that the wall thickness of the first water inlet pipe (2) and the drain pipe (3) is the same, and the ratio of the outer diameter of the first water inlet pipe (2) to the outer diameter of the drain pipe (3) is in the range of 0.5-0.6.