Finish rolling outlet lower guide table device

Abstract

The utility model discloses a lower guide table device of a finish rolling outlet, and belongs to the technical field of mechanical equipment. Comprising a rolling mill stand and a layer cooling inlet roller way, a clamped guide table device is arranged on the side, close to the middle of the rolling mill rack, of the layer cooling inlet roller way in the middle of the rolling mill rack and comprises a supporting table body, a plurality of ultra-high molecular plates attached to the upper surface of the supporting table body and fasteners for connecting the supporting table body and the ultra-high molecular plates, and the fasteners are made of brass alloy materials and 8-level steel nuts. According to the design, the macromolecule plate supporting rack is adopted to replace a rack roller, so that the rack roller and the lower guide table device are combined into one, and batch scratch accidents caused by dead roller faults are avoided; by optimizing the mechanical structure of the outlet lower guide table, the specification and the number of macromolecule plate lining plates are greatly reduced, the service life is prolonged, the replacement period is prolonged, and the replacement time of a single lining plate is greatly shortened; the fixing bolt is made of brass alloy and the 8-level steel nut, so that the quality problem caused by steel scratch is thoroughly solved.

Description

Technical Field

[0001] The utility model provides a finishing rolling outlet lower guide platform device, belonging to the technical field of mechanical equipment. Background Art

[0002] The lower guide device at the finishing rolling exit is an important component of the finishing rolling equipment. It plays an important role in guiding, positioning, shape adjustment, cooling and measurement and control in the finishing rolling process. It can ensure that the steel billet maintains a stable shape and precision during the rolling process, and provide high-quality steel products for subsequent processes.

[0003] Based on the above, the inventors found that:

[0004] 1. The upper surface of the F7 finishing rolling mill outlet stand roller and outlet lower guide device is installed with a polymer plate lining, which can easily lead to batch scratch accidents when the stand roller is dead.

[0005] 2. The F7 exit lower guide platform is equipped with eight polymer board linings, which have too many specifications and quantities, causing a great impact on maintenance work.

[0006] 3. Due to the excessive specifications and quantity of polymer boards, and the major defects in the structural design, the service life of the polymer boards is reduced.

[0007] 4. Replacing a single liner takes too long and is inefficient.

[0008] 5. When the fixing bolts of the polymer board come out, it will cause scratches on the steel strip, so the wiper blade and fixing bolts must be replaced, and the current service life of the wiper blade is less than 30 days. Utility Model Content

[0009] The utility model provides a finishing rolling outlet lower guide table device which can solve the problems of strip steel scratches and short service life of a water scraper.

[0010] In order to solve the above problems, the utility model proposes a technical solution: a finishing rolling outlet lower guide table device, including a rolling mill frame and a layer cold inlet roller; a clamping guide table device is provided on one side of the layer cold inlet roller close to the middle of the rolling mill frame in the middle of the rolling mill frame, and the guide table device includes a support table body, a plurality of ultra-high molecular plates attached to the upper surface of the support table body, and fasteners connecting the support table body and the ultra-high molecular plates, and the fasteners are made of brass alloy material and 8-grade steel nuts;

[0011] As an improvement, the support platform body includes a flat plate, a plurality of longitudinal reinforcing plates arranged in parallel below the flat plate, a transverse reinforcing plate arranged in the middle of any two longitudinal reinforcing plates, a mounting strip arranged at one end of the flat plate, a plurality of bolt holes and elliptical weight-reducing holes for mounting fasteners are arranged on the flat plate, and a U-shaped slot is arranged in the middle of the longitudinal reinforcing plates at both ends;

[0012] As an improvement, the end of the support platform body close to the layer cooling entrance roller is higher, and the end away from the layer cooling entrance roller is lower;

[0013] As an improvement, the ultra-high polymer plate is provided with a plurality of nut holes coaxial with the bolt holes, and the diameter of the nut holes is larger than that of the bolt holes;

[0014] As an improvement, the fasteners are inserted from the bolt holes below the plate, with the upper ends located inside the UHMW plate;

[0015] As an improvement, a clamping block corresponding to the clamping slot is provided on the inner side of the rolling mill frame.

[0016] Beneficial effects of the utility model:

[0017] 1. By using a polymer plate support frame to replace the frame roller, the frame roller and the lower guide device are combined into one, avoiding batch scratch accidents caused by dead roller failure.

[0018] 2. By optimizing the mechanical structure of the outlet lower guide table, the specifications and quantity of polymer plate linings are greatly reduced, the service life is improved, the replacement cycle is extended, and the replacement time of a single lining is greatly reduced.

[0019] 3. By changing the material of the polymer plate fixing bolts to brass alloy plus grade 8 steel nuts, the structure and material of the polymer plate remain unchanged. Even if the bolts are exposed, there will be no strip steel scratching accident, which completely solves the quality problem caused by strip steel scratching at this position and has a significant effect on improving the product image of the hot-rolled plate plant. The structural design is reasonable, overcomes the shortcomings of the existing technology, and has considerable effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a lower guide platform device for a finishing rolling outlet of the utility model. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the structure of a lower guide platform device for a finishing rolling outlet of the utility model. Figure 2 .

[0022] Figure 3 It is a schematic diagram of a guide platform device for a lower guide platform device at a finishing rolling outlet of the utility model.

[0023] Figure 4 It is a schematic diagram of a supporting platform body of a lower guide platform device at a finishing rolling outlet of the utility model.

[0024] Figure 5 This is a schematic diagram of an ultra-high molecular weight plate of a lower guide platform device at a finishing rolling outlet of the utility model.

[0025] 1. Rolling mill frame; 101. Clamp block; 2. Layer cold entrance roller; 3. Guide device; 301. Support table body; 3011. Flat plate; 3012. Longitudinal reinforcing plate; 3013. Transverse reinforcing plate; 3014. Mounting strip; 3015. Bolt hole; 3016. Weight reduction hole; 3017. Clamp slot; 302. Ultra-high molecular weight plate; 3021. Nut hole; 303. Fastener. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings.

[0027] according to Figure 1 —5: The utility model provides a guide platform device at the finishing exit: comprising a rolling mill frame 1 and a layer cold inlet roller table 2; a clamping guide platform device 3 is provided at the middle of the rolling mill frame 1 and one side of the layer cold inlet roller table 2 close to the middle of the rolling mill frame 1; the guide platform device 3 comprises a support platform body 301, a plurality of ultra-high molecular plates 302 attached to the upper surface of the support platform body 301, and fasteners 303 connecting the support platform body 301 and the ultra-high molecular plates 302; the fasteners 303 are used to fasten the polymer plates 302 and the support platform body 301 1 connection, avoiding batch scratch accidents caused by dead roll failure, optimizing the mechanical structure of the exit lower guide table, greatly reducing the specifications and quantity of the polymer plate 302, improving the service life, extending the replacement cycle, greatly reducing the replacement time of a single lining plate, changing the material of the fastener 303, so that even if the bolt is exposed, there will be no strip scratch accident, completely solving the quality problem caused by strip scratch at this position, having a significant effect on improving the product image of the hot-rolled plate mill, overcoming the shortcomings of the existing technology, and having considerable effects;

[0028] The support platform 301 includes a flat plate 3011, a plurality of longitudinal reinforcing plates 3012 arranged in parallel below the flat plate 3011, a transverse reinforcing plate 3013 arranged in the middle of any two longitudinal reinforcing plates 3012, and a mounting strip 3014 arranged at one end of the flat plate 3011. The flat plate 3011 is provided with a plurality of bolt holes 3015 and elliptical weight-reducing holes 3016 for mounting fasteners 303. The middle of the longitudinal reinforcing plates 3012 at both ends is provided with a U-shaped slot 3017. The end of the support platform 301 close to the layer cold inlet roller 2 is high, and the end away from the layer cold inlet roller 2 is low. The support platform 301 arranged in this way can enable the strip to smoothly reach the layer cold inlet roller when passing through.

[0029] Among them, the ultra-high molecular plate 302 is provided with a plurality of nut holes 3021 coaxial with the bolt holes 3015, the diameter of the nut holes 3021 is larger than the bolt holes 3015, the fasteners 303 are inserted from the bolt holes 3015 below the flat plate 3011, and the upper end is located in the ultra-high molecular plate 302, and the fasteners are made of brass alloy material plus 8-grade steel nuts; in this way, the fasteners after installation will not protrude from the ultra-high molecular plate 302, thereby not causing damage to the strip steel, and even if they protrude from the brass alloy material, they will not cause damage to the strip steel;

[0030] The inner side of the rolling mill frame 1 is provided with a clamping block 101 corresponding to the clamping groove 3017 , so that the support platform 301 can be clamped on the inner side of the rolling mill frame 1 and thus installed.

[0031] The principle of the utility model: when in use, first place a plurality of ultra-high molecular plates 302 on the support platform 301 in a mutually close relationship, then put the nut of the fastener 303 into the nut hole 3021, then pass the bolt of the fastener 303 from below the bolt hole 3015 of the flat plate 3011, and make the bolt and the nut match, so that the ultra-high molecular plate 302 is installed, and then the card slots 3017 of the longitudinal reinforcing plates 3012 at both ends below the support platform 301 are clamped on the card blocks 101 of the rolling mill frame, so that the device is installed. When in use, the strip steel will pass through the ultra-high molecular plate 302, and then pass through the layer cold entrance roller 2;

[0032] When the ultra-high molecular weight plate 302 needs to be replaced, the guide device 3 is first removed from the block 101 of the rolling mill frame 1, and then it can be replaced by removing it from the nut through the bolt. In addition, the number of ultra-high molecular weight plates 302 is small, and replacement is convenient.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A finishing rolling exit lower guide platform device, comprising a rolling mill frame (1) and a layer cold entrance roller table (2); characterized in that: A clamping guide device (3) is provided in the middle of the rolling mill frame (1) on one side of the layer cold inlet roller table (2) close to the middle of the rolling mill frame (1), the guide device (3) comprising a support platform body (301), a plurality of ultra-high molecular plates (302) attached to the upper surface of the support platform body (301), and fasteners (303) connecting the support platform body (301) and the ultra-high molecular plates (302), wherein the fasteners (303) are made of brass alloy material and 8-grade steel nuts.

2. A finishing rolling exit lower guide platform device according to claim 1, characterized in that: The support platform (301) comprises a flat plate (3011), a plurality of longitudinal reinforcing plates (3012) arranged in parallel below the flat plate (3011), a transverse reinforcing plate (3013) arranged in the middle of any two longitudinal reinforcing plates (3012), and a mounting strip (3014) arranged at one end of the flat plate (3011); the flat plate (3011) is provided with a plurality of bolt holes (3015) for mounting fasteners (303) and elliptical weight-reducing holes (3016); and U-shaped slots (3017) are provided in the middle of the longitudinal reinforcing plates (3012) at both ends.

3. A finishing rolling exit lower guide platform device according to claim 2, characterized in that: The support platform (301) has an end closer to the layer cooling entrance roller conveyor (2) that is higher, and an end farther from the layer cooling entrance roller conveyor (2) that is lower.

4. A finishing rolling exit lower guide platform device according to claim 1, characterized in that: The ultra-high polymer plate (302) is provided with a plurality of nut holes (3021) coaxial with the bolt holes (3015), and the diameter of the nut holes (3021) is larger than that of the bolt holes (3015).

5. The finishing rolling exit lower guide platform device according to claim 1, characterized in that: The fastener (303) is inserted into the bolt hole (3015) below the flat plate (3011), and the upper end is located inside the ultra-high molecular plate (302).

6. A finishing rolling exit lower guide platform device according to claim 1, characterized in that: A clamping block (101) corresponding to the clamping slot (3017) is provided on the inner side of the rolling mill frame (1).

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