Reversing valve mounting structure for roller cooling of steel plate straightening machine

Abstract

The utility model relates to a reversing valve mounting structure for roller cooling of a steel plate straightening machine, and belongs to the technical field of steel rolling steel plate straightening equipment in the metallurgical industry. According to the technical scheme, the device comprises a bent frame (6), cushion blocks (7) with nuts, lifting lugs (8), a roller system frame (9) and bolts (10), the bent frame (6) is in a long strip shape, a plurality of clamping grooves (5) are formed in the lower portion of the bent frame (6), reversing valves (13) for cooling the straightening machine roller are clamped in the clamping grooves (5) in the lower portion of the bent frame (6) respectively, the two ends of the bent frame (6) are fixed to the cushion blocks (7) with the nuts through the bolts (10) respectively, the cushion blocks (7) with the nuts are fixed to the lifting lugs (8), and the lifting lugs (8) are fixed to the bent frame (6). The lifting lug (8) is fixed on the roller system frame (9), and the clamping groove (5) below the bent frame (6) is inverted-U-shaped. The tool has the beneficial effects that a plurality of reversing valves can be quickly mounted and dismounted, the labor intensity of workers is reduced, and the maintenance time is shortened.

Description

Technical Field

[0001] The utility model relates to a reversing valve installation structure for cooling rollers of a steel plate straightening machine, belonging to the technical field of steel plate straightening equipment in the metallurgical industry. Background Art

[0002] In the steel rolling production process, the "high temperature" steel plates produced by hot rolling need to be straightened by an "eleven-roller" (five rollers in the upper row and six rollers in the lower row) straightening machine. During the straightening process, the high temperature steel plates will transfer part of the heat to the straightening machine rollers. In order to extend the service life of the straightening machine rollers, the equipment manufacturer has installed a cooling device inside each roller for cooling the straightening machine rollers. The connection between the cooling device of each roller and the external cooling water pipeline is realized by a "reversing valve", which solves the problem of the inflow and outflow of cooling water during the rotation of the rollers.

[0003] This type of reversing valve is fixed by a positioning pin during installation. The positioning pin is damaged and becomes ineffective after a short period of use. To ensure production, the maintenance worker has to weld several round steels on the water pipe flange behind the reversing valve to prevent the reversing valve from rotating. However, in the daily maintenance of the straightening machine, the reversing valve needs to be disassembled and installed frequently. To disassemble and replace each reversing valve, several round steels need to be cut and restored afterwards, which is time-consuming and labor-intensive, increases the labor intensity of workers, prolongs the maintenance time, and affects steel rolling production. Therefore, it is necessary to design a mounting bracket that prevents the reversing valve for cooling the rollers of the straightening machine from rotating, quickly realizes the fixation of multiple reversing valves, reduces the labor intensity of workers, and shortens the maintenance time. Utility Model Content

[0004] The purpose of the utility model is to provide a reversing valve installation structure for cooling the rollers of a steel plate straightening machine, which can quickly realize the installation and disassembly of multiple reversing valves, reduce the labor intensity of workers, shorten the maintenance time, and solve the problems existing in the background technology.

[0005] The technical solution of the utility model is:

[0006] A reversing valve installation structure for cooling the rollers of a steel plate straightening machine comprises a rack, a pad with a nut, a lifting lug, a roller system frame and bolts. The rack is in the shape of an elongated strip and has a plurality of slots arranged below the rack. The reversing valves for cooling the rollers of the straightening machine are respectively clamped in the slots below the rack. Both ends of the rack are respectively fixed to the pad with a nut by bolts. The pad with a nut is fixed to the lifting lug, and the lifting lug is fixed to the roller system frame.

[0007] The number of the slots under the rack is the same as the number of the reversing valves for cooling the rollers of the straightening machine, and the size of the slots matches the reversing valves.

[0008] The card slot below the rack is in an inverted U shape.

[0009] The two ends of the rack are rack fixing end plates, and the rack fixing end plates are provided with rack fixing bolt holes matched with bolts.

[0010] One end of the nut spacer is provided with an internal thread matched with the bolt, and the other end is fixed on the lifting ear.

[0011] By adopting the utility model, when installing, first align the card slot under the rack with the reversing valve for cooling the roller of the straightening machine, install it as a whole, and then use bolts to pass through the fixing holes at both ends of the rack and connect them with the internal threads on the corresponding nut pads, thus completing the fixation of the reversing valve for the roller of the straightening machine; when repairing and replacing the reversing valve, open the fixing bolts on the fixed end plate of the rack, lift the rack upwards, and then any group of reversing valves can be replaced.

[0012] The beneficial effects of the utility model are: the installation and disassembly of multiple reversing valves can be realized quickly, the labor intensity of workers is reduced, and the maintenance time is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a left side schematic diagram of the utility model;

[0014] Figure 2 It is a main schematic diagram of the utility model;

[0015] Figure 3 This is the front view of the rack of the utility model;

[0016] Figure 4 This is a side view of the rack of the utility model;

[0017] Figure 5 This is the front view of the spacer with nut of the utility model;

[0018] Figure 6 This is a side view of a spacer with a nut according to the utility model;

[0019] In the figure: rack fixing bolt hole 1, rack fixing end plate 2, internal thread 3, rack comb teeth 4, slot 5, rack 6, spacer with nut 7, lifting ear 8, roller frame 9, bolt 10, reversing valve neck diameter 11, reversing valve water inlet pipe 12, reversing valve for cooling straightening machine roller 13, reversing valve water outlet pipe 14, straightening machine roller 15, lifting ear end face 16. DETAILED DESCRIPTION

[0020] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0021] See attached Figure 1-6A reversing valve installation structure for cooling the rollers of a steel plate straightening machine comprises a rack 6, a nut pad 7, a lifting lug 8, a roller frame 9 and a bolt 10. The rack 6 is in the shape of an elongated strip and has a plurality of slots 5 arranged under the rack 6. The reversing valves 13 for cooling the rollers of the straightening machine are respectively clamped in the slots 5 under the rack 6. Both ends of the rack 6 are respectively fixed to the nut pad 7 by bolts 10. The nut pad 7 is fixed to the lifting lug 8, and the lifting lug 8 is fixed to the roller frame 9.

[0022] In this embodiment, refer to the attached Figure 1-6 The installation structure of the reversing valve for cooling the roller of the steel plate straightening machine comprises a rack 6, a spacer with a nut 7, a bolt 10, a lifting lug 8, a roller frame 9 and a reversing valve 13 for cooling the roller of the straightening machine, wherein:

[0023] See attached Figure 3 , 4 The rack 6 is rectangular in shape and is made of thin steel plate. A plurality of comb teeth 4 are cut at the bottom of the rack. A slot 5 is formed between two adjacent comb teeth 4. Each slot 5 is fixed with a reversing valve 13. The distance between two adjacent comb teeth 4, that is, the width of the slot 5, is slightly larger than the width of the reversing valve "neck diameter" 11. The center distance between two adjacent groups of slots 5 is consistent with the center distance between two adjacent reversing valves 13.

[0024] The thickness of the thin steel plate used to make the rack 6 and the width of the rack comb teeth 4 are determined according to the size of the reversing valve 13 .

[0025] The two ends of the rack are fixed end plates 2, each end plate 2 is provided with two fixing bolt holes 1, and a part of the rectangular steel plate is cut off from the upper side of the rack to reduce the weight of the rack 6.

[0026] The structural feature of the reversing valve 13 for cooling the rollers of the straightening machine is that the "neck diameter" 11 of the reversing valve is semicircular on the top and flat on both sides, which is convenient for the fixing of the rack comb teeth 4.

[0027] See attached Figure 5 , 6 The nut spacer 7 is made of round steel and is cylindrical in shape. There are four of them. One end of the spacer is processed with an internal thread 3 for fixing the rack end plate 2, and the other end is welded to the end face of the ear 8 on the roller frame 9. Its height is consistent with the height from the end face of the ear to the "neck diameter" of the reversing valve; on the end face of each ear 8, a nut spacer 7 is welded on the upper and lower sides to prevent the rack 6 from moving horizontally.

[0028] See attached Figure 1 , 2During installation, first align the multiple groups of slots 5 under the rack 6 with the "neck diameter" 11 of the reversing valves on the multiple groups of rollers, install them as a whole, and then use bolts 10 to pass through the fixing holes 1 at both ends of the rack and connect them with the corresponding internal threads 3 on the nut pads 7. This completes the fixation of the straightening machine roller reversing valve 13; when inspecting and replacing the reversing valve 13, open the fixing bolts 10 on the fixed end plate 2 of the rack, lift the rack 6 upward, and you can replace any group of reversing valves 13.

[0029] A specific embodiment of the present invention:

[0030] The overall dimensions of the rack 6 are: 2290×250×5mm; the dimensions of the slot 5 below the rack 6 are: 100×84mm, the overall dimensions of the comb teeth 4 are: 100×15mm×5mm, and the width between two comb teeth 4 is: 84mm; the plane width at the neck diameter 11 of the reversing valve is: 80mm, the center distance between two adjacent groups of slots 5 is: 344mm, the overall dimensions of the fixed end plates 2 at both ends of the rack are: 160×160mm, and the dimensions of the bolt holes 1 opened on the fixed end plates 2 are: ￠18mm; the dimensions of a portion of the rectangular steel plate cut off from the top of the rack are: 1900×70×5mm; the overall dimensions of the nut spacer 7 are: ￠30×60mm, and the specifications of the internal thread 3 processed on one end are: M16×25mm, and the bolts 10 at both ends of the fixed rack are purchased standard parts with specifications: M16×20mm.

Claims

1. A reversing valve installation structure for roller cooling of a steel plate straightening machine, characterized in that: The invention comprises a rack (6), a nut-bearing pad (7), a lifting lug (8), a roller frame (9) and a bolt (10); the rack (6) is in the shape of an elongated strip, a plurality of slots (5) are arranged below the rack (6), reversing valves (13) for cooling rollers of the straightening machine are respectively clamped in the slots (5) below the rack (6), two ends of the rack (6) are respectively fixed to the nut-bearing pad (7) by bolts (10), the nut-bearing pad (7) is fixed to the lifting lug (8), and the lifting lug (8) is fixed to the roller frame (9).

2. The installation structure of a reversing valve for cooling rollers of a steel plate straightening machine according to claim 1, characterized in that: The number of the slots (5) below the rack (6) is the same as the number of the reversing valves (13) for cooling the rollers of the straightening machine, and the size of the slots (5) matches the size of the reversing valves (13).

3. The installation structure of a reversing valve for cooling rollers of a steel plate straightening machine according to claim 2, characterized in that: The slot (5) below the rack (6) is in an inverted U shape.

4. The installation structure of a reversing valve for cooling rollers of a steel plate straightening machine according to claim 2, characterized in that: The two ends of the bent frame (6) are bent frame fixing end plates (2), and the bent frame fixing end plates (2) are provided with bent frame fixing bolt holes (1) that match the bolts (10).

5. The installation structure of a reversing valve for cooling rollers of a steel plate straightening machine according to claim 1, characterized in that: One end of the nut spacer (7) is provided with an internal thread (3) matching the bolt (10), and the other end is fixed on the lifting ear (8).

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