A rolling mill rotating guide cylinder

Abstract

The utility model relates to a kind of rolling mill rotary guide cylinder, it includes base (1), the base (1) is provided with bearing seat (2), the bearing seat (2) is provided with two supporting bearings (3) before and after inside, two supporting bearings (3) before and after are provided with outer sleeve (4), the inner guide cylinder (5) is worn and is installed in the outer sleeve (4), the inner guide cylinder (5) center is provided with feed channel (6).The utility model relates to a kind of rolling mill rotary guide cylinder, when feeding, inner guide cylinder can freely rotate, not easy to cause the phenomenon of material blocking, greatly improve the feeding efficiency.

Description

Technical Field

[0001] This utility model relates to a rotating guide cylinder for a rolling mill, belonging to the technical field of steel ball production equipment. Background Technology

[0002] Steel balls, as the grinding media in ball mills, are widely used in the grinding process of ball mills. Ball mills are the main equipment in mineral processing and are widely used in mineral processing plants. my country is a major ore-producing country with a large number of ball mills in operation, requiring a large quantity of steel balls. Steel balls are consumable parts, and the annual consumption is substantial. Forged steel balls are widely used due to their long service life. Hot-rolled steel balls are also widely used because of their stable internal quality, dense microstructure, fine grains, resistance to deformation, and good wear resistance.

[0003] Conventional hot-rolled steel ball production processes generally adopt the ferrous metallurgical industry standard for forged (rolled) steel balls (YB / T091-2005) to professionally produce hot-rolled grinding steel balls of various specifications, with a diameter range of ￠25~￠125mm. The billets used for rolling grinding steel balls are hot-rolled round steel bars of various chemical compositions, with a diameter equal to the nominal diameter of the steel ball; conventional hot-rolled steel balls mainly... The production process should be as follows: Step 1: After inspection, the round steel bars are cut into steel ball blanks according to the specified length; Step 2: The steel ball billet is heated to a suitable temperature in a continuous heating furnace before rolling; Step 3: After the red-hot steel billet is fed into the hot rolling mill, it passes between two rolls with special spiral grooves. It rotates forward and is continuously rolled into steel balls; Step 4: The rolled red-hot steel balls are immediately sent to a heat treatment device for quenching and tempering heat treatment, so that the steel balls... Achieve high and uniform hardness; Step 5: Products that pass inspection are sent to the finished goods warehouse, packaged, and then shipped to customers.

[0004] Currently, step three typically involves using a feeding guide tube to feed the red-hot steel billet into the hot rolling mill for rolling. Since the round steel bar inevitably has a certain degree of bending, it is easy to cause the guide tube to jam, affecting the feeding efficiency. In addition, the guide tube and the bar are severely worn, which greatly affects the service life of the guide tube. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a rotating guide cylinder for a rolling mill, which allows the inner guide cylinder to rotate freely during feeding, making it less prone to jamming and greatly improving feeding efficiency.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a rolling mill rotating guide cylinder, which includes a base, a bearing seat on the base, two front and rear support bearings in the bearing seat, an outer sleeve on the two front and rear support bearings, an inner guide cylinder inside the outer sleeve, and a feeding channel in the center of the inner guide cylinder.

[0007] Optionally, the bearing housing includes a lower bearing housing and an upper bearing housing, the lower bearing housing and the upper bearing housing are hinged together on the right side by a pin, and the lower bearing housing and the upper bearing housing are connected on the left side by a locking pin.

[0008] Optionally, an inner spacer ring is provided in the middle of the lower and upper bearing housings, and the front and rear support bearings are located on the front and rear sides of the inner spacer ring, respectively.

[0009] Optionally, the lower bearing portion is provided with a ring of platform, and the upper bearing portion is provided with a ring of convex, wherein the platform and convex are fitted together.

[0010] Optionally, an outer spacer ring is provided on the outer side of the outer sleeve, and the outer spacer ring is positioned between the front and rear support bearings.

[0011] Optionally, a retaining ring is provided at the rear of the inner guide cylinder, and the retaining ring abuts against the rear side of the outer sleeve.

[0012] Optionally, the feeding channel includes a front section and a rear section, wherein the front section is a long straight section and the rear section is an outwardly expanding inclined section.

[0013] Optionally, the bearing housing is provided with outer end caps on the left and right sides.

[0014] Optionally, the outer end cover includes a left half end cover and a right half end cover, and the splicing line between the left half end cover and the right half end cover is arranged at an angle to the vertical direction.

[0015] Optionally, a sealing ring is provided between the outer end cap and the outer sleeve.

[0016] Compared with the prior art, the advantages of this utility model are: 1. The inner guide cylinder of this utility model can rotate freely during feeding, which is less likely to cause material jamming and greatly improves feeding efficiency; 2. The inner guide cylinder of this utility model can rotate freely during feeding, which greatly reduces the wear between the bar and the guide cylinder and effectively extends the service life of the guide cylinder; 3. The outer end cap and bearing seat of this utility model are both of a split structure, which is convenient for disassembly and assembly, and is beneficial for the subsequent maintenance and replacement of the inner guide cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a rotating guide cylinder for a rolling mill according to the present invention.

[0018] Figure 2 for Figure 1 Side view.

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the inner and outer jacket.

[0020] Figure 4 for Figure 1 A schematic diagram of the inner guide tube.

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the inner and outer end caps.

[0022] Figure 6 for Figure 5 Side view.

[0023] in: Base 1 Bearing housing 2 Lower half bearing housing 21 Upper bearing housing 22 Inner septum 23 Step 24 Flange 25 Support bearing 3 Outerwear 4 Inner guide tube 5 Feeding channel 6 The first part 61 The latter part 62 Pin 7 Locking pin 8 outer septum 9 10mm retaining ring Outer end cap 11 Left half cap 111 Right half cap 112 Sealing ring 12. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] See Figures 1-6 The present invention relates to a rotating guide cylinder for a rolling mill, which includes a base 1, a bearing seat 2 on the base 1, two front and rear support bearings 3 inside the bearing seat 2, an outer sleeve 4 on the two front and rear support bearings 3, an inner guide cylinder 5 inside the outer sleeve 4, and a feeding channel 6 opened in the center of the inner guide cylinder 5. The bearing housing 2 includes a lower bearing housing 21 and an upper bearing housing 22. The lower bearing housing 21 and the upper bearing housing 22 are hinged together on the right side by a pin 7, and connected on the left side by a locking pin 8. An inner spacer 23 is provided in the middle of the lower half bearing seat 21 and the upper half bearing seat 22, and the front and rear support bearings 3 are respectively located on the front and rear sides of the inner spacer 23. The lower bearing seat 21 is provided with a step 24 at the top, and the upper bearing seat 22 is provided with a flange 25 at the bottom. The step 24 and the flange 25 cooperate with each other. An outer spacer ring 9 is provided on the outer side of the outer sleeve 4, and the outer spacer ring 9 is fitted between the front and rear support bearings 3; A retaining ring 10 is provided at the rear of the inner guide cylinder 5, and the retaining ring 10 abuts against the rear side of the outer sleeve 4; The feeding channel 6 includes a front section 61 and a rear section 62. The front section 61 is a long straight section, and the rear section 62 is an outwardly expanding inclined section. The bearing housing 2 is provided with outer end caps 11 on the left and right sides; The outer end cover 11 includes a left half end cover 111 and a right half end cover 112, and the splicing line between the left half end cover 111 and the right half end cover 112 is arranged at an angle to the vertical direction. A sealing ring 12 is provided between the outer end cap 11 and the outer sleeve 4.

[0026] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A rotating guide cylinder for a rolling mill, characterized in that: It includes a base (1), on which a bearing seat (2) is provided, and two front and rear support bearings (3) are provided inside the bearing seat (2). An outer sleeve (4) is provided on the two front and rear support bearings (3). An inner guide cylinder (5) is installed inside the outer sleeve (4). A feeding channel (6) is opened in the center of the inner guide cylinder (5).

2. A rotating guide cylinder for a rolling mill according to claim 1, characterized in that: The bearing housing (2) includes a lower bearing housing (21) and an upper bearing housing (22). The lower bearing housing (21) and the upper bearing housing (22) are hinged together on the right side by a pin (7), and the lower bearing housing (21) and the upper bearing housing (22) are connected on the left side by a locking pin (8).

3. A rotating guide cylinder for a rolling mill according to claim 2, characterized in that: The lower half bearing housing (21) and the upper half bearing housing (22) are provided with an inner diaphragm (23) in the middle, and the front and rear support bearings (3) are located on the front and rear sides of the inner diaphragm (23) respectively.

4. A rotating guide cylinder for a rolling mill according to claim 2, characterized in that: The lower bearing seat (21) has a step (24) at the top and the upper bearing seat (22) has a flange (25) at the bottom. The step (24) and the flange (25) are engaged.

5. A rotating guide cylinder for a rolling mill according to claim 1, characterized in that: An outer spacer ring (9) is provided on the outer side of the outer sleeve (4), and the outer spacer ring (9) is positioned between the front and rear support bearings (3).

6. A rotating guide cylinder for a rolling mill according to claim 1, characterized in that: A retaining ring (10) is provided at the rear of the inner guide tube (5), and the retaining ring (10) abuts against the rear side of the outer tube (4).

7. A rotating guide cylinder for a rolling mill according to claim 1, characterized in that: The feeding channel (6) includes a front section (61) and a rear section (62), the front section (61) being a long straight section and the rear section (62) being an outwardly expanding inclined section.

8. A rotating guide cylinder for a rolling mill according to claim 1, characterized in that: The bearing housing (2) is provided with outer end caps (11) on the left and right sides.

9. A rotating guide cylinder for a rolling mill according to claim 8, characterized in that: The outer end cap (11) includes a left half end cap (111) and a right half end cap (112), and the splicing line of the left half end cap (111) and the right half end cap (112) is arranged at an angle to the vertical direction.

10. A rotating guide cylinder for a rolling mill according to claim 8, characterized in that: A sealing ring (12) is provided between the outer end cap (11) and the outer sleeve (4).

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