Rail joint fixing structure of circular cooler

Abstract

The utility model discloses a circular cooler track joint fixing structure, a circular cooler track is an annular track formed by splicing a plurality of track units end to end, the cross section of each track unit is I-shaped, each track unit comprises a track surface, a bottom surface and a middle shaft, the splicing surface between the adjacent track units is a Z-shaped splicing surface, and the bottom surface of each track unit is a Z-shaped splicing surface. The middle of the Z-shaped splicing face is in inclined plane splicing, the projection of the inclined plane splicing area on the cross section coincides with the projection of the center shaft of the track unit on the cross section, the track unit is further provided with a plurality of through holes penetrating through the center shaft, counter bores are formed in the tops of the through holes, and the center shaft of the track unit is inserted into the counter bores. Bottom holes corresponding to the through holes are formed in the annular rail base, and positioning bolts are inserted into the through holes and the bottom holes. By means of the mode, the stability of the track can be improved, the influence of movement on the position of the connector is prevented, and the service life of the track is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of sintering equipment, in particular to a ring cooler track joint fixing structure. Background Art

[0002] The ring cooler is a special equipment for unloading sintered hot ore from the sintering machine. In actual use, the ring cooler repeats the loading and unloading actions along the circular track. During the whole process, the ring cooler moves unidirectionally along the track. Due to the unidirectional movement and the high temperature of the sintered material, the unidirectional force of the track and the effect of thermal expansion and contraction make it easy for the track to move forward continuously, resulting in track displacement and mutual squeezing between the track joints. In severe cases, docking cracks may even appear at the joints, or even deformation and collapse, seriously affecting the service life of the track. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a ring cooler track joint fixing structure, which can improve the stability of the track unit, reduce the movement of the track unit, and reduce the damage frequency of the joint position.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a ring cooler track joint fixing structure, the ring cooler track is a ring track formed by splicing a plurality of track units end to end, the ring track is installed on a corresponding ring track seat, the cross section of the track unit is an I-shaped, including a track surface, a bottom surface and a central axis, the cross-sectional width of the bottom surface is greater than the cross-sectional width of the track surface, the splicing surface between adjacent track units is a Z-shaped splicing surface, the middle of the Z-shaped splicing surface is an inclined splicing, and the two sides are plane splicing, the projection of the inclined splicing area on the cross section coincides with the projection of the central axis of the track unit on the cross section, the track unit is also provided with a plurality of through holes passing through the central axis, a countersunk hole is arranged at the top of the through hole, a bottom hole corresponding to the through hole is arranged on the ring track seat, a positioning bolt is inserted in the through hole, the top of the positioning bolt is located in the countersunk hole, and the bottom of the positioning bolt is inserted into the bottom hole.

[0005] In a preferred embodiment of the present invention, the angle between the middle of the Z-shaped joint surface and the cross section is 30° to 60°.

[0006] In a preferred embodiment of the present utility model, an inner clamping block is provided inside the annular track seat, and an outer clamping block is provided outside. Inner positioning grooves and outer positioning grooves matching the inner clamping block and the outer clamping block are provided on the bottom surface of the track unit. The inner positioning groove is formed by splicing a front-end inner clamping opening and a rear-end inner clamping opening. The front-end inner clamping opening and the rear-end inner clamping opening have the same length. The front-end inner clamping opening is provided inside the front end of the bottom surface of the track unit, and the rear-end inner clamping opening is provided inside the rear end of the bottom surface of the track unit. The outer positioning groove is formed by splicing a front-end outer clamping opening and a rear-end outer clamping opening. The front-end outer clamping opening and the rear-end outer clamping opening have the same length. The front-end outer clamping opening is provided outside the front end of the bottom surface of the track unit, and the rear-end outer clamping opening is provided outside the rear end of the bottom surface of the track unit. The groove depths of the inner positioning groove and the outer positioning groove do not exceed half of the width of the cross-section of the bottom surface exceeding the width of the central axis cross-section.

[0007] In a preferred embodiment of the present utility model, when adjacent guide rail units are spliced, the joint width is generally 1 - 3 mm.

[0008] The beneficial effects of the present utility model are as follows: On the basis of the traditional annular track, the present utility model changes the interface shape between track units on the one hand, changing the flat docking to Z-shaped splicing. Moreover, the inclined splicing part of the Z-shaped splicing coincides with the central axis projection, which can change the direct docking when the central axis deforms into inclined sliding docking, effectively preventing the extrusion damage of the track joints when the track moves, eliminating the cracks at the docking position, and using bolts to fix the whole from the central axis position, improving the bonding strength between the track and the base, effectively improving the stability during the use of the track, ensuring that the track does not shift or move, and significantly reducing the damage frequency of the joint positions of the track units of the annular track through the application of this technical solution, and significantly reducing the labor intensity of on-site personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present utility model;

[0010] Figure 2 is a three-dimensional structural schematic diagram of the shown embodiment with the previous track unit removed;

[0011] Figure 3 is a three-dimensional structural schematic diagram of the shown embodiment with the subsequent track unit removed;

[0012] The marks of each component in the drawings are as follows:

[0013] 1. Track unit, 2. Track seat, 3. Positioning bolt;

[0014] 101. Rail surface, 102. Central axis, 103. Bottom surface, 104. Counterbore, 105. Front splicing surface, 106.

[0015] Rear splicing surface, 107. Front-end inner bayonet, 108. Rear-end inner bayonet;

[0016] 201. Inner clamping block, 202. Outer clamping block. Detailed implementation manner

[0017] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0018] Please refer to Figures 1 to 3 , the embodiment of the present utility model includes: a fixing structure for the ring cooler track joint. The ring cooler track is an annular track formed by splicing multiple track units 1 end to end. The annular track is installed on a corresponding annular track seat 2. The track unit 1 is made of rail steel with an I-shaped cross-section. The track seat is made of Q345 steel plate. The rail steel includes a rail surface 101, a bottom surface 103, and a central axis 102. The cross-sectional width of the bottom surface 103 is greater than the cross-sectional width of the rail surface 101. The splicing surface between adjacent track units 1 is a Z-shaped splicing surface. The middle of the Z-shaped splicing surface is a bevel splicing, and the two sides are flat splices. The projection of the bevel splicing area on the cross-section coincides with the projection of the central axis of the track unit 1 on the cross-section. Each track unit 1 is also provided with 5 through holes penetrating the central axis. A counterbore 104 is provided at the top of the through hole. The annular track seat 2 is provided with bottom holes corresponding to the through holes. A positioning bolt 3 is inserted into the through hole. The top of the positioning bolt 3 is located in the counterbore 104, and the bottom of the positioning bolt 3 is inserted into the bottom hole to fix the track unit 1 on the track seat.

[0019] The included angle between the middle of the Z-shaped splicing surface and the cross-section is 30° - 60°, and it is generally 45° during actual production. The reason for using the above included angle is that if the included angle is too small, the impact force is relatively large during deformation and displacement, and it is easy to damage the splicing surface. If the included angle is too large, the overlapping area is too long, and the strength of the overlapping area is relatively small. And since the sintered material has a large load, the track is prone to damage.

[0020] The inner side of the annular track base 2 is provided with an inner clamping block 201, and the outer side is provided with an outer clamping block 202. The inner clamping block 201 and the outer clamping block 202 have the same length, generally about 20 cm. The bottom surface of the track unit 1 is provided with an inner positioning groove and an outer positioning groove that match the inner clamping block and the outer clamping block. The total groove length of the inner positioning groove and the outer positioning groove is generally 20.5 cm. The inner positioning groove is formed by splicing a front-end inner clamping opening 107 and a rear-end inner clamping opening 108. The front-end inner clamping opening 107 and the rear-end inner clamping opening 108 have the same length. The front-end inner clamping opening 107 is arranged on the inner side of the front end of the bottom surface 103 of the track unit 1, and the rear-end inner clamping opening 108 is arranged on the inner side of the rear end of the bottom surface 103 of the track unit 1. The outer positioning groove is formed by splicing a front-end outer clamping opening and a rear-end outer clamping opening. The front-end outer clamping opening and the rear-end outer clamping opening have the same length. The front-end outer clamping opening is arranged on the outer side of the front end of the bottom surface 103 of the track unit 1, and the rear-end outer clamping opening is arranged on the outer side of the rear end of the bottom surface of the track unit. In this way, through the cooperation of the inner clamping block 201 and the outer clamping block 202, the head and tail positions of the middle track unit 1 can be further fixed, preventing the overall displacement and shifting of the track unit 1.

[0021] The groove depth of the inner positioning groove and the outer positioning groove does not exceed half of the cross-sectional width of the bottom surface 103 exceeding the width of the central axis cross-section, generally with a depth of 5 - 10 cm. If the depth is too small, the positioning effect is not obvious and it is easy to come out. If the depth is too large and extends to the position of the central axis 102, it is easy to affect the rail surface strength at the joint position, resulting in a reduction in the rail surface life.

[0022] The splicing seam width between the front splicing surface 105 at the front end of the rear track unit 1 and the rear splicing surface 106 at the rear end of the previous track unit 1 in the adjacent track units 1 is 1 - 3 mm. The splicing seam width is significantly reduced compared with the traditional joint. The reason for adopting the above width is that the Z-shaped splicing surface changes the main docking position from plane splicing to inclined plane splicing. In this way, relative sliding can occur during force deformation, reducing the direct collision and extrusion force, reducing the risk of damage to the track unit, and moreover, due to the smaller splicing seam, the strength of the rail surface 101 in the splicing area is significantly improved, significantly reducing the probability of compression damage in this area and further improving the overall service life.

[0023] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A ring cooler track joint fixing structure, wherein the ring cooler track is a ring track formed by connecting a plurality of track units end to end, and the ring track is installed on a corresponding ring track seat, characterized in that: The cross-section of the track unit is I-shaped, including a track surface, a bottom surface and a central axis. The cross-sectional width of the bottom surface is greater than the cross-sectional width of the track surface. The splicing surface between adjacent track units is a Z-shaped splicing surface. The middle of the Z-shaped splicing surface is an inclined splicing, and the two sides are plane splicing. The projection of the inclined splicing area on the cross-section coincides with the projection of the central axis of the track unit on the cross-section. The track unit is also provided with a plurality of through holes passing through the central axis, and a countersunk hole is arranged at the top of the through hole. A bottom hole corresponding to the through hole is arranged on the annular track seat, and a positioning bolt is inserted in the through hole. The top of the positioning bolt is located in the countersunk hole, and the bottom of the positioning bolt is inserted into the bottom hole.

2. The ring cooler rail joint fixing structure according to claim 1 is characterized in that: The angle between the middle of the Z-shaped splicing surface and the cross section is 30° to 60°.

3. The ring cooler rail joint fixing structure according to claim 1 is characterized in that: An inner clamping block is arranged on the inner side of the annular track seat, and an outer clamping block is arranged on the outer side. An inner positioning groove and an outer positioning groove matching with the inner clamping block and the outer clamping block are arranged on the bottom surface of the track unit.

4. The ring cooler rail joint fixing structure according to claim 3 is characterized in that: The inner positioning groove is formed by splicing the front end inner snap-in and the rear end inner snap-in, the front end inner snap-in and the rear end inner snap-in have the same length, the front end inner snap-in is arranged on the inner side of the front end of the bottom surface of the track unit, and the rear end inner snap-in is arranged on the inner side of the rear end of the bottom surface of the track unit.

5. The ring cooler rail joint fixing structure according to claim 3 is characterized in that: The external positioning groove is formed by splicing a front end external snap-in and a rear end external snap-in, the front end external snap-in and the rear end external snap-in have the same length, the front end external snap-in is arranged on the outside of the front end of the bottom surface of the track unit, and the rear end external snap-in is arranged on the outside of the rear end of the bottom surface of the track unit.

6. The ring cooler rail joint fixing structure according to claim 3 is characterized in that: The depth of the inner positioning groove and the outer positioning groove does not exceed half of the width of the cross-sectional width of the bottom surface exceeding the width of the mid-axis cross-sectional width.

7. The ring cooler rail joint fixing structure according to claim 1 is characterized in that: The joint width of adjacent guide rail units when spliced ​​is generally 1 to 3 mm.

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