Split type clutch shifting fork structure for reducing and sizing box of finishing mill

Abstract

The utility model discloses a split type clutch shifting fork structure for a reducing sizing box of a finishing mill, which comprises a saddle-shaped clutch shifting fork body, a sleeve, a connecting seat and a tension coupling sleeve, the connecting seat is arranged on the outer ring of the sleeve, screw holes are arranged on the top surface of the connecting seat at intervals, first through holes are arranged on the bottom surface of the saddle-shaped clutch shifting fork body at intervals, and the tension coupling sleeve is arranged in the saddle-shaped clutch shifting fork body. The saddle-shaped clutch shifting fork body is arranged on the top face of the connecting base and is screwed into the screw holes to be fastened after bolts are inserted into the first through holes, and the tensioning coupling sleeves are arranged on the inner rings of the two ends of the sleeve. The structure overcomes the defects of replacement and adjustment operation of a traditional clutch shifting fork, the clutch shifting fork assembly matched with the gear shaft can be rapidly replaced when the gear shaft of the reducing sizing box is replaced, the maintenance difficulty and cost are reduced, and the operation efficiency and the maintenance quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rolling mill equipment, especially relates to a split clutch yoke structure for finishing mill reducing sizing box. BACKGROUND

[0002] The reducing sizing box of high-speed wire rod finishing mill adopts gear variable speed transmission mechanism, and relies on clutch to realize the transformation of rotating speed.

[0003] When the gear shaft of the reducing sizing box is replaced, the clutch yoke, the gear shaft and the hydraulic cylinder of the driving main shaft need to be disassembled before the replacement of the clutch yoke can be implemented. SUMMARY

[0004] The utility model provides a split clutch yoke structure for finishing mill reducing sizing box, and the structure overcomes the defects of traditional clutch yoke replacement and adjustment operation, realizes quick replacement of the clutch yoke assembly matched with the gear shaft of the reducing sizing box, reduces the maintenance difficulty and cost, and improves the operation efficiency and maintenance quality.

[0005] To solve the above technical problems, the split clutch yoke structure for finishing mill reducing sizing box includes a saddle-shaped clutch yoke body, a sleeve, a connecting seat and a tension coupling sleeve.

[0006] Further, the connecting seat includes two spaced connecting blocks, the bottom surface of the saddle-shaped clutch yoke body is provided with transverse ribs on both sides, and a longitudinal rib is arranged between the transverse ribs.

[0007] Furthermore, a second through hole is centrally provided in the two connecting blocks and the longitudinal ribs, and a bolt is passed through the second through hole and a nut is screwed in to fasten the two connecting blocks and the longitudinal ribs.

[0008] Because the utility model adopts the above-mentioned technical solution for the split clutch fork structure used in the reducing and sizing box of the finishing mill, namely, the structure includes a saddle-shaped clutch fork body, a sleeve, a connecting seat, and a tension coupling sleeve, the connecting seat is arranged on the outer ring of the sleeve, the top surface of the connecting seat is provided with screw holes at intervals, the bottom surface of the saddle-shaped clutch fork body is provided with first through holes at intervals, the saddle-shaped clutch fork body is arranged on the top surface of the connecting seat and is fastened by bolts inserted into the first through holes and then screwed into the screw holes, and the tension coupling sleeves are arranged on the inner rings of both ends of the sleeve. This structure overcomes the shortcomings of traditional clutch fork replacement and adjustment operations, and realizes that when the gear shaft of the reducing and sizing box is replaced, the matching clutch fork assembly can be quickly replaced, reducing the difficulty and cost of maintenance and improving work efficiency and maintenance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0010] Figure 1 This is a schematic diagram of the structure of a split clutch fork used in a sizing box of a finishing mill according to the utility model;

[0011] Figure 2 This is an exploded view of the parts of this structure. DETAILED DESCRIPTION

[0012] Implementation example Figure 1 and Figure 2 As shown, the split clutch fork structure of the finishing mill reducing and sizing box of the utility model includes a saddle-shaped clutch fork body 1, a sleeve 2, a connecting seat 3 and a tensioning coupling sleeve 4, the connecting seat 3 is arranged on the outer ring of the sleeve 2, the top surface of the connecting seat 3 is provided with screw holes 31 at intervals, the bottom surface of the saddle-shaped clutch fork body 1 is provided with first through holes 11 at intervals, the saddle-shaped clutch fork body 1 is provided with first through holes 11 at intervals, the saddle-shaped clutch fork body 1 is provided on the top surface of the connecting seat 3 and is fastened by inserting bolts 5 into the first through holes 11 and then screwing them into the screw holes 31, and the tensioning coupling sleeves 4 are provided on the inner rings of both ends of the sleeve 2.

[0013] Preferably, the connecting seat 3 includes two spaced-apart connecting blocks 32. Transverse ribs 12 are provided on both sides of the bottom surface of the saddle-shaped clutch fork body 1, and a longitudinal rib 13 is provided centrally between the transverse ribs 12. When the saddle-shaped clutch fork body 1 is seated on the top surface of the connecting seat 3, the longitudinal ribs 13 are embedded between the two connecting blocks 32, and the transverse ribs 12 abut against both ends of the two connecting blocks 32. The provision of the connecting blocks, transverse ribs, and longitudinal ribs ensures that the saddle-shaped clutch fork body is securely positioned on the top surface of the connecting seat, preventing displacement between the two, and ensuring reliable operation of the saddle-shaped clutch fork body.

[0014] Preferably, the two connecting blocks 32 and the longitudinal ribs 13 are centrally provided with second through holes 6, bolts 61 are inserted into the second through holes 6 and nuts are screwed to fasten the two connecting blocks 32 and the longitudinal ribs 13. The two connecting blocks and the longitudinal ribs are fastened by bolts and nuts, further strengthening the reliability of the connection between the body of the saddle-shaped clutch fork and the connecting seat and the axial positioning ability of the body of the saddle-shaped clutch fork.

[0015] When the reducing sizing box is installed, the sleeve 2 is first sleeved on the driving spindle 7, and the two are matched as a clearance fit. After positioning, the sleeve 2 is fixed on the driving spindle 7 by using the tensioning coupling 4. Then, the body of the saddle-shaped clutch fork 1 is arranged on the top surface of the connecting seat 3 and fastened by the bolts 5. At the same time, in order to ensure the reliability of the connection between the body of the saddle-shaped clutch fork and the connecting seat, the horizontal ribs and the longitudinal ribs are arranged on the bottom surface of the body of the saddle-shaped clutch fork, the connecting seat is provided with two spaced connecting blocks, the longitudinal ribs are embedded between the two connecting blocks, and the horizontal ribs are abutted to the two ends of the two connecting blocks, so as to limit the displacement of the body of the saddle-shaped clutch fork in the axial and radial directions, ensure that the body of the saddle-shaped clutch fork follows the action of the driving spindle, and realize the speed change of the reducing sizing box.

[0016] The structure has the characteristics of simple parts, convenient disassembly and assembly, and reliable connection. When the gear shaft of the reducing sizing box is replaced, the body of the saddle-shaped clutch fork only needs to be disassembled from the connecting seat for replacement, which saves the process of disassembling the clutch, the driving spindle and other components and hoisting the gear shaft back and forth for positioning the clutch fork when replacing the gear shaft, reduces the construction difficulty, and the construction time of replacing the fork is improved from 8 hours of construction by 3 people to 3 hours of construction by 1 person. The structure replaces the original integral clutch fork, effectively improves the construction efficiency and maintenance quality.

Claims

1. A split clutch yoke structure for a finishing mill reducing sizing box, comprising a saddle-shaped clutch yoke body, characterized in that: Also include sleeve, connecting seat and expansion coupling, the connecting seat is located in the outer circle of the sleeve, the top surface of the connecting seat is provided with a threaded hole, the bottom surface of the saddle-shaped clutch fork body is provided with a first through hole, the saddle-shaped clutch fork body is located on the top surface of the connecting seat and is fastened by inserting the first through hole and the threaded hole with a bolt, and the expansion coupling is located in the inner circle of both ends of the sleeve.

2. The split clutch fork arrangement for a finishing mill reducing cage as claimed in claim 1, wherein: The connecting seat includes two spaced apart connecting blocks, the bottom surface of the saddle-shaped clutch fork body is provided with transverse ribs on both sides, a longitudinal rib is provided between the transverse ribs, when the saddle-shaped clutch fork body is seated on the top surface of the connecting seat, the longitudinal rib is embedded between the two connecting blocks, and the transverse ribs are abutted to both ends of the two connecting blocks.

3. The split clutch fork arrangement for a finishing mill reducing cage as claimed in claim 2, wherein: The two connecting blocks and the longitudinal rib are provided with a second through hole in the middle, a bolt is inserted into the second through hole and a nut is screwed to fasten the two connecting blocks and the longitudinal rib.

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