Drum guide rail capable of preventing fixing bolt from being sheared

Abstract

The utility model discloses a drum guide rail capable of preventing a fixing bolt from being sheared, which comprises a guide rail seat and a guide rail positioned on the periphery of the guide rail seat, taper surfaces are formed on the matching surface of the guide rail seat and the inner surface of the guide rail, and a plurality of taper holes are formed on the close surfaces of the guide rail seat and the guide rail. The two sides of the guide rail base and the two sides of the guide rail are connected with an inner gland and an outer gland which are oppositely arranged respectively, and the inner gland and the outer gland are connected with a plurality of taper bolts penetrating through the taper holes. The guide rail and the guide rail base can be transversely locked through slope self-locking, the inner gland and the outer gland, stable operation of the guide rail and the guide rail base is guaranteed, and the guide rail and the guide rail base can be fixed through taper fit of the guide rail and the guide rail base and an axial fastening mode adopted by the taper bolt. And the shearing force borne by the original bolt is changed into the radial pressure borne by the existing taper bolt, and the pressure is uniformly distributed, so that the fixed bolt can be prevented from being sheared off, the equipment maintenance cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drum guide rail technology field especially relates to a prevent fixed bolt from being sheared drum guide rail. BACKGROUND

[0002] The blast furnace drum is one of the main equipment in the slagging system of the blast furnace for smelting iron, and its main function is to mix coke and iron ore and to generate molten iron through reduction reaction at high temperature. The blast furnace drum is one of the core equipment for blast furnace smelting, and its operation condition is directly related to the production efficiency and production cost of the blast furnace. Among them, the drum guide rail is the basic support for the normal operation of the blast furnace drum, which can effectively ensure the normal rotation of the drum. At present, the drum of the large-capacity blast furnace has a total weight of more than 120 tons due to the large weight of the body and the weight of the water slag during normal production. Therefore, the pressure on the drum guide rail is also very large.

[0003] However, the heavy drum during operation causes a large load on the drum guide rail. The traditional drum guide rail is fixed by radial bolts. During long-term high-load operation, the drum guide rail is extended and deformed due to the large load pressure stress. The deformation will cause the screw holes to be misaligned, so that the fixed bolts bear shear force, resulting in the shear failure of the fixed bolts. This leads to a shortened maintenance cycle of the drum guide rail and affects the production efficiency. Moreover, if the shear failure of the fixed bolts is not found and treated in time, it will also pose a hidden danger to safety production. Some existing solutions (such as increasing the number of bolts and improving the material quality of the bolts) have not fundamentally improved the situation. SUMMARY

[0004] To solve the technical problem of the existing technology that the drum guide rail is extended and deformed due to the large load pressure stress, the deformation causes the screw holes to be misaligned, so that the fixed bolts bear shear force, resulting in the shear failure of the fixed bolts, and seriously affecting the production efficiency, the utility model provides the following technical scheme.

[0005] The utility model relates to a prevent fixed bolt from being sheared drum guide rail, including the guide rail seat and the guide rail at the outer periphery of guide rail seat, the guide rail seat cooperation face and the guide rail inner surface form have taper face, the guide rail seat and the guide rail near one side common establishment form have a plurality of taper holes, the two sides of guide rail seat and guide rail are connected with the inner pressure cover and the outer pressure cover who set up oppositely, the inner pressure cover and the outer pressure cover are connected with a plurality of taper bolts who pass through the taper hole.

[0006] As a further technical scheme, the taper face is a taper face with a complementary taper of 1:50 formed by the inner surface of the guide rail and the mating surface of the guide rail seat.

[0007] As a further technical scheme, the taper of the conical hole is the same as the taper of the taper surface, and the taper bolt matches the taper of the conical hole.

[0008] As a further technical scheme, the guide rail is provided with a first locking groove on both sides, the guide rail seat is provided with a second locking groove on both sides, and the first locking groove and the second locking groove on the same side are respectively connected to the inner pressure cover and the outer pressure cover.

[0009] As a further technical scheme, the taper bolt is sixty groups, and is uniformly arranged along the circumferential direction of the guide rail.

[0010] As a further technical scheme, the conical hole is uniformly arranged along the circumferential direction of the guide rail.

[0011] The beneficial effects of the utility model, the complementary taper is arranged on the matching surface of the guide rail inner surface and the guide rail seat, the guide rail and the guide rail seat can be self-locked through the inclined surface self-locking. Meanwhile, the inner pressure cover and the outer pressure cover are arranged on both sides of the guide rail and the guide rail seat respectively, the inner pressure cover and the outer pressure cover can lock the guide rail and the guide rail seat horizontally, and the stable operation of the guide rail and the guide rail seat is guaranteed. The conical hole is horizontally arranged on the guide rail and the guide rail seat, the guide rail and the guide rail seat are fastened through the outer pressure cover, the conical hole and the inner pressure cover by the taper bolt, thereby, through the taper cooperation of the guide rail and the guide rail seat and the axial fastening mode of the taper bolt, the shear force borne by the original bolt is changed into the radial pressure borne by the existing taper bolt and the pressure is uniformly distributed, the fixed bolt can be prevented from being sheared, the equipment maintenance cost is reduced, and the production efficiency is improved. ACCURATE DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the drum guide rail of the utility model for preventing the fixed bolt from being sheared;

[0013] Figure 2 It is the structural schematic diagram of the cross section of the drum guide rail of the utility model for preventing the fixed bolt from being sheared;

[0014] Figure 3 It is the exploded structural schematic diagram of the cross section of the drum guide rail of the utility model for preventing the fixed bolt from being sheared;

[0015] In the drawing: 1-guide rail seat; 2-guide rail; 3-inner pressure cover; 4-outer pressure cover; 5-taper bolt; 6-taper surface; 7-conical hole; 8-first locking groove; 9-second locking groove. CONCRETE IMPLEMENTATION

[0016] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model. It should be noted that the examples in the utility model and the features in the examples can be combined with each other without conflict.

[0017] In the description of the utility model, it should be understood that the terms 'upper' and 'lower' are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms 'first','second', etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. In the description of the utility model, unless otherwise stated, the meaning of 'a plurality of' is two or more.

[0018] As shown in Figure 1 The utility model discloses a drum guide rail for preventing fixed bolt from being sheared, which comprises a guide rail seat 1 and a guide rail 2 located at the outer periphery of the guide rail seat 1. The main body of the guide rail seat 1 and the guide rail 2 is in the existing annular structure, which is used for the normal operation of the drum.

[0019] As shown in Figure 2 And Figure 3 In a preferred embodiment, different from the existing drum guide rail, a taper surface 6 is formed on the inner surface of the guide rail 2 and the matching surface of the guide rail seat 1. The taper surface 6 is a taper surface with a complementary taper of 1:50 formed by the inner surface of the guide rail 2 and the matching surface of the guide rail seat 1. The inclination taper of the taper surface 6 can facilitate the inclined surface self-locking of the guide rail 2 and the guide rail seat 1, and the existence of the taper surface 6 also facilitates the disassembly and replacement of the new guide rail 2, reducing the required time for maintenance.

[0020] In a preferred embodiment, the guide rail seat 1 and the guide rail 2 are respectively connected with oppositely arranged inner pressure covers 3 and outer pressure covers 4, and the inner pressure covers 3 and the outer pressure covers 4 are annular structures. At this time, the guide rail 2 is provided with first locking grooves 8 on both sides, the guide rail seat 1 is provided with second locking grooves 9 on both sides, the inner pressure covers 3 and the outer pressure covers 4 are provided with protruding parts, and the protruding parts can be inserted into the first locking grooves 8 and the second locking grooves 9. In this way, the first locking grooves 8 and the second locking grooves 9 on the same side are respectively connected to the inner pressure covers 3 and the outer pressure covers 4. The guide rail 2 and the guide rail seat 1 are transversely locked by the inner pressure covers 3 and the outer pressure covers 4, so as to ensure the normal operation of the drum guide rail.

[0021] In a preferred embodiment, the guide rail seat 1 and the guide rail 2 are provided with a plurality of taper holes 7 on the same side, that is, the taper holes 7 are formed by the guide rail seat 1 and the guide rail 2. The inner pressure cover 3 and the outer pressure cover 4 are connected with a plurality of taper bolts 5 penetrating the taper holes 7, and the taper bolts 5 penetrate the inner pressure cover 3, the taper holes 7 and the outer pressure cover 4 to lock the guide rail seat 1 and the guide rail 2. Thus, the shear force borne by the original bolt can be changed into the radial pressure borne by the existing taper bolt 5, and the pressure is uniformly distributed, thereby reducing the risk of bolt fracture.

[0022] In a preferred embodiment, the taper of the taper hole 7 is the same as the taper of the taper surface 6, and the taper bolt 5 matches the taper of the taper hole 7. Meanwhile, the taper bolt 5 is sixty groups, and is uniformly arranged along the circumferential direction of the guide rail 2, and the taper hole 7 is also uniformly arranged along the circumferential direction of the guide rail 2, and the number is the same as that of the taper bolt 5.

[0023] The working principle of the utility model is: the inner surface of the guide rail 2 and the matching surface of the guide rail seat 1 are provided with a taper surface 6, the taper of the taper surface 6 is 1:50, the taper surface 6 can be self-locked to the guide rail 2 and the guide rail seat 1, and the inner pressure cover 3 and the outer pressure cover 4 are connected to the first locking groove 8 and the second locking groove 9 respectively, the guide rail 2 and the guide rail seat 1 can be transversely locked, and the stable operation of the guide rail 2 and the guide rail seat 1 is ensured. The guide rail seat 1 and the guide rail 2 are transversely provided with a plurality of uniformly arranged taper holes 7, after the guide rail seat 1 and the guide rail 2 are assembled, the guide rail 2 and the guide rail seat 1 are fastened by the taper bolt 5 penetrating the outer pressure cover 4, the taper hole 7 and the inner pressure cover 3, the shear force borne by the original bolt is changed into the radial pressure borne by the existing taper bolt 5 and the pressure is uniformly distributed, the situation that the guide rail fixing bolt is sheared is fundamentally changed, the equipment maintenance cost is reduced, and the production efficiency is improved.

[0024] The preferred specific embodiments and examples of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments and examples, various changes or equivalent replacements can be made within the knowledge range possessed by the person skilled in the art without departing from the concept of the utility model, therefore, the utility model is not limited by the specific embodiments disclosed here, all the embodiments falling within the scope of the claims of the application belong to the range protected by the utility model.

Claims

1. A drum rail for preventing a fixing bolt from being sheared, comprising a rail base (1) and a rail (2) located at the outer periphery of the rail base (1), characterized in that: The guide rail seat (1) matching surface and the guide rail (2) inner surface form a taper surface (6), the guide rail seat (1) and the guide rail (2) near one side are jointly provided with a plurality of taper holes (7), the two sides of the guide rail seat (1) and the guide rail (2) are respectively connected with oppositely arranged inner pressure cover (3) and outer pressure cover (4), the inner pressure cover (3) and the outer pressure cover (4) are connected with a plurality of taper bolts (5) passing through the taper hole (7).

2. The drum rail for preventing the fixed bolt from being sheared according to claim 1, characterized by: The taper surface (6) is the complementary taper of 1:50 formed by the inner surface of the guide rail (2) and the matching surface of the guide rail seat (1).

3. The drum rail for preventing the fixing bolt from being sheared according to claim 1, wherein: The taper of the taper hole (7) is the same as the taper of the taper surface (6), and the taper bolt (5) matches the taper of the taper hole (7).

4. The drum rail for preventing the fixing bolt from being sheared according to claim 1, wherein: The guide rail (2) is provided with a first locking groove (8) on both sides, and the guide rail seat (1) is provided with a second locking groove (9) on both sides, and the first locking groove (8) and the second locking groove (9) on the same side are respectively connected to the inner pressure cover (3) and the outer pressure cover (4).

5. The drum rail for preventing the fixing bolt from being sheared according to claim 1, wherein: The taper bolt (5) is sixty groups, and is uniformly arranged along the circumferential direction of the guide rail (2).

6. The drum rail for preventing the fixed bolt from being sheared according to claim 1, wherein: The taper hole (7) is uniformly arranged along the circumferential direction of the guide rail (2).

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