Core roller mechanism for vertical ring rolling mill

Abstract

The invention relates to a core roller mechanism for a vertical ring rolling mill. The technical problem that an existing core roller mechanism is prone to breakage and damage is mainly solved. According to the technical scheme, the core roller mechanism comprises a core roller bearing seat sliding rail, a left core roller bearing seat, two inner side end covers, a core roller, two core roller bearing assemblies, a push-pull oil cylinder, an oil cylinder support and a right core roller bearing seat, and the left core roller bearing seat is fixedly installed at the left end of the core roller bearing seat sliding rail; the left core roller bearing seat is installed on the core roller bearing seat sliding rail, the right core roller bearing seat is installed on the core roller bearing seat sliding rail, the two core roller bearing assemblies are arranged at the upper end of the left core roller bearing seat and the upper end of the right core roller bearing seat, the inner side end covers are arranged on the inner sides of the core roller bearing assemblies, the oil cylinder support is fixedly installed at the right end of the core roller bearing seat sliding rail, and a cylinder body of the push-pull oil cylinder is arranged on the oil cylinder support. The end of a push-pull rod of the push-pull oil cylinder is connected with the rib plate of the right core roller bearing seat, the left end of the core roller is inserted into one core roller bearing assembly, and the right end of the core roller is installed in the other core roller bearing assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of forging equipment, and in particular relates to a core roller mechanism used in a vertical ring rolling machine. Background Art

[0002] Ring rolling machine is an important metal processing equipment, mainly used to roll metal blanks into ring parts. During the ring rolling process, the core roller provides support for the inside of the ring blank to ensure that the blank will not be excessively deformed or collapsed when it is squeezed and rubbed by the active roller. It helps the blank maintain a stable shape and plays an important positioning function, so that the blank can be deformed according to the predetermined trajectory.

[0003] In traditional ring rolling machines, the core roller is fixedly installed in the frame of the ring rolling machine. Under this installation method, when the ring and the core roller are in contact and rotate, there is a friction structure between the two, which is very easy to cause wear of the ring and the core roller. At the same time, most core rollers are installed on the frame at one end and the other end is suspended. During the loading process, the operator uses tools such as forklifts to insert the materials. At this time, one end of the core roller is suspended, which makes the core roller lack sufficient support when it is subjected to processing force, and it is easy to produce excessive stress concentration. As the processing continues, this stress concentration may continue to intensify, and eventually cause the core roller to break near the suspended end, which seriously affects production efficiency and product quality, and also increases the production cost of the enterprise and premature damage to the bearing seat. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problem that the existing core roller mechanism is prone to cause wear, breakage and damage of rings and core rollers, and to provide a core roller mechanism for a vertical ring rolling machine.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A core roller mechanism used in a vertical ring rolling machine comprises a core roller bearing seat slide rail (1), a left core roller bearing seat (2), two inner end covers (3), a core roller (4), two core roller bearing assemblies (5), a push-pull oil cylinder (8), an oil cylinder bracket (9) and a right core roller bearing seat (21), wherein the left core roller bearing seat (2) is fixedly mounted on the left end of the core roller bearing seat slide rail (1), one core roller bearing assembly (5) is arranged at the upper end of the left core roller bearing seat (2), the right core roller bearing seat (21) is mounted on the core roller bearing seat slide rail (1) and can slide on the core roller bearing seat slide rail (1), and the other core roller bearing assembly (5) is arranged at the upper end of the right core roller bearing seat (21), the inner end cover (3) is arranged on the inner side of the core roller bearing assembly (5), the cylinder bracket (9) is fixedly mounted on the right end of the core roller bearing seat slide rail (1), the cylinder body of the push-pull cylinder (8) is arranged on the cylinder bracket (9), the end of the push-pull rod of the push-pull cylinder (8) is connected to the rib plate (6) arranged on the right core roller bearing seat (21) through a pin shaft (7), the left end of the core roller (4) is inserted into a core roller bearing assembly (5), and the right end of the core roller (4) is installed in another core roller bearing assembly (5) and fixed by a stop end bolt (20).

[0007] Furthermore, the core roller bearing assembly (5) comprises a housing (10), a self-aligning roller bearing (11), an outer ring cover (12), a dust ring (14), an outer end cover (15), a retaining ring (16), a spacer (17) and a sleeve (18), wherein the self-aligning roller bearing (11) is arranged on the sleeve (18), the spacer (17) is mounted on the sleeve (18) and is located on the outer side of the inner ring of the self-aligning roller bearing (11), and the retaining ring (16) is arranged on the sleeve (18). 8) and fix the spacer (17), the self-aligning roller bearing (11) and the sleeve (18) are installed in the housing (10), the outer ring pressure cover (12) is installed on the outer end surface of the housing (10) by bolts, the outer end cover (15) is connected to the sleeve (18) by bolts, a dust ring (14) is provided between the outer ring pressure cover (12) and the outer end cover (15), and a sealing ring (19) is provided between the housing (10) and the inner end cover (3).

[0008] Furthermore, one end of the core roller (4) is designed to be conical so as to effectively ensure the center positioning of the core roller (4) when it is pulled out and reset, and the other end of the core roller (4) is provided with a threaded hole.

[0009] Furthermore, the core roller bearing seat slide rail (1) is provided with a slide groove that matches the protrusions provided at the bottom of the left core roller bearing seat (2) and the right core roller bearing seat (21).

[0010] The beneficial effects of the present invention are:

[0011] (1) The traditional structure of one end of the core roller being suspended is changed. Through the cooperation of the core roller bearing seat, the core roller bearing seat slide rail and the hydraulic push-pull cylinder, the core roller can be effectively supported at both ends when it is subjected to processing force, avoiding stress concentration, greatly reducing the deformation of the core roller, improving processing accuracy, ensuring product quality and improving production efficiency;

[0012] (2) The core roller adopts a removable structure, which makes disassembly, maintenance and replacement more convenient. When problems occur in the core roller or related components, they can be quickly handled, reducing downtime and improving enterprise production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the core roller of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the core roller bearing assembly of the present invention;

[0016] In the figure: 1—slide rail of core roller bearing seat; 2—left core roller bearing seat; 3—inner end cover; 4—core roller; 5—core roller bearing assembly; 6—rib plate; 7—pin shaft; 8—push-pull cylinder; 9—cylinder bracket; 10—housing; 11—spherical roller bearing; 12—outer ring pressure cover; 13—plug; 14—dust ring; 15—outer end cover; 16—retaining ring; 17—spacer; 18—sleeve; 19—sealing ring; 20—stop end bolt; 21—right core roller bearing seat. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 to Figure 3As shown, a core roller mechanism used in a vertical ring rolling machine in this embodiment includes a core roller bearing seat slide rail 1, a left core roller bearing seat 2, two inner end covers 3, a core roller 4, two core roller bearing assemblies 5, a push-pull cylinder 8, a cylinder bracket 9 and a right core roller bearing seat 21, wherein the left core roller bearing seat 2 is fixedly mounted on the left end of the core roller bearing seat slide rail 1, one core roller bearing assembly 5 is arranged at the upper end of the left core roller bearing seat 2, the right core roller bearing seat 21 is mounted on the core roller bearing seat slide rail 1 and can slide on the core roller bearing seat slide rail 1, and the other core roller bearing assembly 5 is arranged on the right At the upper end of the core roller bearing seat 21, the inner end cover 3 is arranged on the inner side of the core roller bearing assembly 5, the cylinder bracket 9 is fixedly mounted on the right end of the core roller bearing seat slide rail 1, the cylinder body of the push-pull oil cylinder 8 is arranged on the cylinder bracket 9, the end of the push-pull rod of the push-pull oil cylinder 8 is connected to the rib plate 6 provided on the right core roller bearing seat 21 through the pin 7, the left end of the core roller 4 is inserted into the core roller bearing assembly 5 provided on the left core roller bearing seat 2, and the right end of the core roller 4 is installed in another core roller bearing assembly 5 provided on the right core roller bearing seat 21 and fixed by the stop end bolt 20. One end of the core roller 4 is designed to be conical to effectively ensure the center positioning of the core roller 4 when it is pulled out and reset, and the other end of the core roller 4 is provided with a threaded hole, which is connected and fixed to the outer end cover 15 by the stop end bolt 20. The core roller bearing seat slide rail 1 is provided with a slide groove that matches the protrusions set at the bottom of the left core roller bearing seat 2 and the right core roller bearing seat 21, ensuring that the core roller 4 can move quickly and be accurately positioned during the loading and unloading process.

[0019] like Figure 3 As shown, the core roller bearing assembly 5 includes a housing 10, a self-aligning roller bearing 11, an outer ring gland 12, a dust ring 14, an outer end cover 15, a retaining ring 16, a spacer 17 and a sleeve 18. The self-aligning roller bearing 11 is arranged on the sleeve 18, the spacer 17 is mounted on the sleeve 18 and is located outside the inner ring of the self-aligning roller bearing 11, the retaining ring 16 is arranged at the end of the sleeve 18 and fixes the spacer 17, the self-aligning roller bearing 11 and the sleeve 18 are installed in the housing 10, the outer ring gland 12 is installed on the outer end surface of the housing 10 by bolts, the outer end cover 15 is connected to the sleeve 18 by bolts, a dust ring 14 is arranged between the outer ring gland 12 and the outer end cover 15, and a sealing ring 19 is arranged between the housing 10 and the inner end cover 3. A plug 13 is provided on the oil hole provided in the outer ring gland 12.

[0020] When the present invention is used, the push-pull cylinder 8 drives the right core roller bearing seat 21 to be pulled out along the core roller bearing seat slide rail 1, and the ring material is placed between the two bearing seats. The push-pull cylinder 8 resets the right core roller bearing seat 21, and the core roller 4 passes through the ring material to complete the loading.

[0021] The above specific embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the following description, and these obvious changes or modifications based on the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A core roller mechanism used in a vertical ring rolling machine, characterized in that: The invention comprises a core roller bearing seat slide rail (1), a left core roller bearing seat (2), two inner end covers (3), a core roller (4), two core roller bearing assemblies (5), a push-pull cylinder (8), a cylinder bracket (9) and a right core roller bearing seat (21), wherein the left core roller bearing seat (2) is fixedly mounted on the left end of the core roller bearing seat slide rail (1), one core roller bearing assembly (5) is arranged at the upper end of the left core roller bearing seat (2), the right core roller bearing seat (21) is mounted on the core roller bearing seat slide rail (1) and can slide on the core roller bearing seat slide rail (1), and the other core roller bearing assembly (5) is arranged on the right core roller The inner end cover (3) is arranged on the inner side of the core roller bearing assembly (5) at the upper end of the bearing seat (21), the cylinder bracket (9) is fixedly mounted on the right end of the core roller bearing seat slide rail (1), the cylinder body of the push-pull cylinder (8) is arranged on the cylinder bracket (9), the end of the push-pull rod of the push-pull cylinder (8) is connected to the rib plate (6) arranged on the right core roller bearing seat (21) through a pin shaft (7), the left end of the core roller (4) is inserted into a core roller bearing assembly (5), and the right end of the core roller (4) is installed in another core roller bearing assembly (5) and fixed by a stop end bolt (20).

2. The core roller mechanism used in a vertical ring rolling machine according to claim 1, characterized in that: The core roller bearing assembly (5) comprises a housing (10), a self-aligning roller bearing (11), an outer ring cover (12), a dust ring (14), an outer end cover (15), a retaining ring (16), a spacer (17) and a shaft sleeve (18). The self-aligning roller bearing (11) is arranged on the shaft sleeve (18). The spacer (17) is mounted on the shaft sleeve (18) and is located on the outer side of the inner ring of the self-aligning roller bearing (11). The retaining ring (16) is arranged on the shaft sleeve (18). The end of the housing (10) is fixed with a spacer (17), the self-aligning roller bearing (11) and the sleeve (18) are installed in the housing (10), the outer ring pressure cover (12) is installed on the outer end surface of the housing (10) by bolts, the outer end cover (15) is connected to the sleeve (18) by bolts, a dust ring (14) is provided between the outer ring pressure cover (12) and the outer end cover (15), and a sealing ring (19) is provided between the housing (10) and the inner end cover (3).

3. The core roller mechanism used in a vertical ring rolling machine according to claim 1, characterized in that: One end of the core roller (4) is designed to be conical, so as to effectively ensure the center positioning of the core roller (4) when it is pulled out and reset; the other end of the core roller (4) is provided with a threaded hole.

4. The core roller mechanism used in a vertical ring rolling machine according to claim 1, characterized in that: The core roller bearing seat slide rail (1) is provided with a slide groove matching with the protrusions provided at the bottom of the left core roller bearing seat (2) and the right core roller bearing seat (21).

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