A quick slot changing device for a rolling mill guide
By using a hydraulic motor to drive the lead screw and transmission mechanism, the guide can be quickly and accurately changed in the bar production process, which solves the problems of time-consuming and labor-intensive operation and poor adjustment accuracy in the existing technology, and improves the efficiency of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG IRON & STEEL
- Filing Date
- 2024-11-26
- Publication Date
- 2026-06-19
AI Technical Summary
The existing method of changing slots in the production of bar stock is time-consuming and labor-intensive, with poor adjustment accuracy. In addition, the torque of manual pneumatic wrenches is insufficient, making it impossible to change slots quickly and affecting the operating rate.
A hydraulic motor drives the lead screw, which in turn moves the guide slide along the mill guide beam via a transmission mechanism and is fixed with positioning bolts, enabling precise alignment of the guide and rapid slot changing.
It improves the efficiency of slot changing, ensures the accuracy of guide adjustment, replaces manual operation, and improves work efficiency.
Smart Images
Figure CN224372419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a quick slot changing device for rolling mill guides, belonging to the technical field of bar rolling mill production equipment in the metallurgical industry. Background Technology
[0002] In bar production, when the rolling capacity of a short-stress rolling mill reaches the limit of a single slot, it is necessary to change to an adjacent slot. Changing slots requires manually rotating a screw to move the mill guide to the corresponding slot. This method is time-consuming and labor-intensive, and the guide adjustment accuracy is poor. If a pneumatic wrench is used to rotate the screw, its torque is too small to achieve rapid slot changing, thus affecting the effective operating rate. Utility Model Content
[0003] The purpose of this invention is to provide a quick slot changing device for rolling mill guides, which can replace manual slot changing operations, improve work efficiency, and ensure the adjustment accuracy of the guides, thus solving the problems existing in the background art.
[0004] The technical solution of this utility model is:
[0005] A quick-change slot device for rolling mill guides includes a hydraulic motor, a rolling mill guide beam, a guide slide, a guide, a lead screw, and a slide threaded sleeve. The hydraulic motor is driven and connected to the lead screw through a transmission mechanism, and the lead screw is rotatably connected to the rolling mill guide beam. The guide is fixed on the guide slide, and the guide slide is fixed on the slide threaded sleeve. The slide threaded sleeve is threadedly connected to the lead screw.
[0006] Positioning bolts are provided between the guide slide and the rolling mill guide beam.
[0007] The transmission mechanism includes a universal joint, a drive shaft, a driving gear, and a driven gear. The hydraulic motor is connected to the drive shaft via the universal joint. The driving gear is fixed on the drive shaft, and the driven gear is fixed on the lead screw. The driving gear and the driven gear mesh with each other.
[0008] The hydraulic motor has a threaded pipe underneath.
[0009] Using this utility model, when changing the slot in the rolling mill, the hydraulic motor drives the lead screw to rotate through the transmission mechanism, and then drives the guide slide to move along the direction of the rolling mill guide beam through the slide threaded sleeve, thereby aligning the guide with the slot to be replaced. Finally, the guide slide is fixed by the positioning bolts.
[0010] The beneficial effects of this utility model are: it can replace manual slot changing operations, improve work efficiency, and also ensure the adjustment accuracy of the guide. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a cross-sectional view (AA) of the present invention;
[0013] In the diagram: 1. Hydraulic inlet pipe; 2. Hydraulic return pipe; 3. Threaded pipe; 4. Hydraulic motor; 5. Universal joint; 6. Rolling mill guide beam; 7. Guide slide; 8. Guide; 9. Rolling groove; 10. Drive shaft; 11. Lead screw; 12. Slide threaded sleeve; 13. Positioning bolt; 14. Drive gear; 15. Driven gear. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and examples.
[0015] See attached document Figure 1 , 2 A quick-change slot device for rolling mill guides includes a hydraulic motor 4, a rolling mill guide beam 6, a guide slide 7, a guide 8, a lead screw 11, and a slide threaded sleeve 12. The hydraulic motor 4 is driven and connected to the lead screw 11 through a transmission mechanism. The lead screw 11 is rotatably connected to the rolling mill guide beam 6. The guide 8 is fixed on the guide slide 7, and the guide slide 7 is fixed on the slide threaded sleeve 12. The slide threaded sleeve 12 is threadedly connected to the lead screw 11.
[0016] In this embodiment, refer to the appendix Figure 1 , 2 The quick-change groove device for the rolling mill guide includes a hydraulic inlet pipe 1, a hydraulic return pipe 2, a threaded pipe 3, a hydraulic motor 4, a universal joint 5, a rolling mill guide beam 6, a guide slide 7, a guide 8, a groove 9, a drive shaft 10, a lead screw 11, a slide threaded sleeve 12, a positioning bolt 13, a drive gear 14, and a driven gear 15, wherein:
[0017] The threaded pipe 3 is located below the hydraulic motor 4, and the height of the hydraulic motor 4 can be adjusted through the threaded pipe 3.
[0018] The universal joint 5, drive shaft 10, drive gear 14 and driven gear 15 constitute the transmission mechanism between hydraulic motor 4 and lead screw 11. Hydraulic motor 4 is connected to drive shaft 10 through universal joint 5. Drive gear 14 is fixed on drive shaft 10 and driven gear 15 is fixed on lead screw 11. Drive gear 14 and driven gear 15 mesh with each other.
[0019] The lead screw 11 is set along the direction of the mill guide beam 6. The slide threaded sleeve 12 is threadedly connected to the lead screw 11. The guide slide 7 is fixed on the slide threaded sleeve 12. A positioning bolt 13 is provided between the guide slide 7 and the mill guide beam 6. The guide 8 is fixed on the guide slide 7 and cooperates with the mill groove 9.
[0020] When changing the slot in the rolling mill, the hydraulic motor 4 drives the lead screw 11 to rotate through the transmission mechanism, and then drives the guide slide 7 to move along the direction of the rolling mill guide beam 6 through the slide threaded sleeve 12, thereby aligning the guide 8 with the slot 9 to be replaced. Finally, the guide slide 7 is fixed by the positioning bolt 13.
Claims
1. A quick-change slot device for rolling mill guides, characterized in that: It includes a hydraulic motor (4), a rolling mill guide beam (6), a guide slide (7), a guide (8), a lead screw (11), and a slide threaded sleeve (12). The hydraulic motor (4) is driven and connected to the lead screw (11) through a transmission mechanism. The lead screw (11) is rotatably connected to the rolling mill guide beam (6). The guide (8) is fixed on the guide slide (7), and the guide slide (7) is fixed on the slide threaded sleeve (12). The slide threaded sleeve (12) is threadedly connected to the lead screw (11).
2. The quick-change slot device for rolling mill guides according to claim 1, characterized in that: The guide slide (7) is provided with positioning bolts (13) between it and the mill guide beam (6).
3. The quick-change slot device for rolling mill guides according to claim 1, characterized in that: The transmission mechanism includes a universal joint (5), a transmission shaft (10), a drive gear (14), and a driven gear (15). The hydraulic motor (4) is connected to the transmission shaft (10) through the universal joint (5). The drive gear (14) is fixed on the transmission shaft (10), and the driven gear (15) is fixed on the lead screw (11). The drive gear (14) and the driven gear (15) mesh with each other.
4. The quick-change slot device for rolling mill guides according to claim 1, characterized in that: The hydraulic motor (4) is provided with a threaded pipe (3) below it.