Gear shaft system structure of speed increasing box of high-speed wire rod rolling mill

Abstract

The utility model relates to the technical field of speed-increasing gearboxes of wire rod rolling mills, in particular to a gear shaft system structure of a speed-increasing gearbox of a high-speed wire rod rolling mill, which comprises a rotating rod, a spline housing mounted in the center of the outer surface of the rotating rod, external spline gears mounted on two sides of the spline housing, and gear gears mounted on the side walls of the external spline gears. A limiting assembly is installed on the outer side wall of the gear, a fastening assembly is installed on the surface of the limiting assembly in a penetrating mode, a clamping groove is formed in the outer surface of the rotating rod, and the limiting assembly and the clamping groove are located on the same plane. The gear shaft system structure of the speed increasing box of the high-speed wire rod rolling mill has the beneficial effects that the limiting assembly is used, the limiting assembly is located on the surface of the clamping groove, the limiting assembly is fixed through the fastening assembly, the limiting assembly is installed on the side wall of the gear, and therefore the gear shaft system structure of the speed increasing box of the high-speed wire rod rolling mill is fixed. And the gear is prevented from sliding to be separated from the gear while the gear is limited, mounted, used and detached.

Description

Technical Field

[0001] This utility model relates to the technical field of speed increasers for wire rod mills, specifically a gear shaft system structure for a speed increaser for a high-speed wire rod mill. Background Technology

[0002] The speed increaser in the high-speed wire rod mill has 14 shafts and 9 gears. Different combinations of gears enable different rolling speeds. The gear shifting mechanism plays a crucial role in the stable operation of the equipment. The increased contact length between the external spline gear and the internal spline sleeve in the gear shifting mechanism leads to stress and wear during the periodic biting and stripping of steel, resulting in frequent gear disengagement and affecting stable production.

[0003] In the existing technology, the worn gear of the shift helical gear is machined, a new gear external spline sleeve is made, and the new gear external spline sleeve is embedded in the original old gear with an interference fit. It is then connected with bolts and cylindrical pins, and the bearing position is precision machined and ground to increase the width of the spline drive shaft and increase the actual effective contact length of the spline, so as to prevent the spline from disengaging.

[0004] Because the above-mentioned device increases the width of the gear by adding an external spline gear, the original limit position on the outer side of the gear is different, resulting in the lack of limit on the side wall of the gear, which makes it easy to slip during use. Therefore, this utility model proposes a gear shaft system structure for a speed increaser of a high-speed wire rod mill to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a gearbox gear shaft system structure for a high-speed wire rod mill to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gear shift shaft system structure for a high-speed wire rod mill speed increaser, the gear shift shaft system structure for a high-speed wire rod mill speed increaser includes: a rotating rod, a spline sleeve installed at the center of the outer surface of the rotating rod, external spline gears installed on both sides of the spline sleeve, a gear shift gear installed on the side wall of the external spline gear, a limit component installed on the outer side wall of the gear shift gear, a fastening component installed through the surface of the limit component, a slot opened on the outer surface of the rotating rod, and the limit component and the slot located on the same plane.

[0007] Preferably, the limiting component includes a set of symmetrically placed limiting sleeves, with several connecting rods fixedly installed inside the limiting sleeves. The connecting rods are evenly distributed in a circular array, and a rotating ring is installed between the set of limiting sleeves.

[0008] Preferably, a bearing is installed on the outer surface of the connecting rod, a rotating block is installed on the outer surface of the bearing, the outer end of the rotating block is located inside the slot, a toothed groove is opened on the outer surface of one end of the rotating block, and several sets of teeth are installed on the inner wall of the rotating ring, the teeth and the toothed groove mesh with each other.

[0009] Preferably, the side wall of the rotating block is provided with an arc groove, and a plurality of limiting plates are installed on the inner wall of the rotating ring. The limiting plates are located inside the arc groove, and a locking block is installed inside the arc groove, which locks into the inside of the limiting plate.

[0010] Preferably, the outer surface of the limiting sleeve has a recessed hole, and the outer surface of the rotating ring has a hole.

[0011] Preferably, the fastening assembly includes a nut, which is fixed in the recess of one side of the limiting sleeve, and a screw is screwed into the inside of the nut, the screw passing through the recess of the other side of the limiting sleeve and the hole of the rotating ring.

[0012] Preferably, the external spline gear is mounted on the side wall of the gear shifter.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a gearbox gear shaft system structure for a high-speed wire rod mill. By utilizing a limiting component, the limiting component is positioned on the surface of the slot and fixed by a fastening component. The limiting component is installed on the side wall of the gear, thus limiting the installation, use, and disassembly of the gear and preventing the gear from sliding and disengaging from the gear position. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the gearbox gear shaft system of the high-speed wire rod mill of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the limiting component of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram of A in the middle;

[0018] Figure 4 This is a three-dimensional structural diagram of the limiting sleeve of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the rotating ring of this utility model.

[0020] In the diagram: 1. Rotating rod; 2. Spline sleeve; 3. External spline gear; 4. Gear shifter; 5. Limiting assembly; 6. Fastening assembly; 7. Slot; 8. Limiting sleeve; 9. Connecting rod; 10. Rotating ring; 11. Bearing; 12. Rotating block; 13. Gear groove; 14. Tooth; 15. Arc groove; 16. Limiting plate; 17. Locking block; 18. Concave hole; 19. Hole; 20. Nut; 21. Screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a gear shift shaft system structure for a speed increaser of a high-speed wire rod mill. The gear shift shaft system structure includes: a rotating rod 1, a spline sleeve 2 installed at the center of the outer surface of the rotating rod 1, external spline gears 3 installed on both sides of the spline sleeve 2, a gear shift gear 4 installed on the side wall of the external spline gear 3, the external spline gear 3 installed on the side wall of the gear shift gear 4, a limiting component 5 installed on the outer side wall of the gear shift gear 4, a fastening component 6 installed through the surface of the limiting component 5, and a slot 7 opened on the outer surface of the rotating rod 1. The limiting component 5 and the slot 7 are located on the same plane.

[0023] In use, the spline sleeve 2 is fitted onto the outer surface of the rotating rod 1, and the external spline gear 3 is installed onto the side wall of the gear 4. It is then connected and fixed by bolts and cylindrical pins, which increases the tooth surface width, improves the maintainability of the equipment, and prevents the gear from disengaging. The gear is positioned on the surface of the slot 7 by the limiting component 5, and then the limiting component 5 is fixed by the fastening component 6. The limiting component 5 is installed on the side wall of the gear 4 to limit the installation, use, and disassembly of the gear 4, preventing the gear 4 from sliding and disengaging from the gear.

[0024] Example 2: Based on Example 1, a structure for installing and using the limiting component 5 is provided. The limiting component 5 includes a set of symmetrically placed limiting sleeves 8. Several connecting rods 9 are fixedly installed inside the limiting sleeves 8. The connecting rods 9 are evenly distributed in a ring array. A rotating ring 10 is installed between a set of limiting sleeves 8. A bearing 11 is installed on the outer surface of the connecting rods 9. A rotating block 12 is installed on the outer surface of the bearing 11. The outer end of the rotating block 12 is located inside the slot 7. A toothed groove 13 is opened on the outer surface of one end of the rotating block 12. Several sets of teeth 14 are installed on the inner wall of the rotating ring 10. The teeth 14 mesh with the toothed groove 13. An arc groove 15 is opened on the side wall of the rotating block 12. Several limiting plates 16 are installed on the inner wall of the rotating ring 10. The limiting plates 16 are located inside the arc groove 15. A locking block 17 is installed inside the arc groove 15. The locking block 17 is locked inside the limiting plate 16.

[0025] In use, the rotating block 12 between the limiting sleeves 8 is placed on the outer surface of the slot 7. The rotating ring 10 rotates, and the teeth 14 mesh with the tooth groove 13, causing the rotating block 12 to rotate, so that the outer end of the rotating block 12 rotates into the inside of the slot 7. After the rotating ring 10 rotates, the lower limiting plate 16 moves inside the arc groove 15. When the limiting plate 16 rotates to the point where the locking block 17 is inserted into the inside of the limiting plate 16, the rotating block 12 is fixed.

[0026] Example 3: Based on Example 2, a structure is provided to fix the rotating ring 10 and the limiting sleeve 8. The outer surface of the limiting sleeve 8 is provided with a concave hole 18, and the outer surface of the rotating ring 10 is provided with a hole 19. The fastening component 6 includes a nut 20, which is fixed in the concave hole 18 of one side of the limiting sleeve 8. A screw 21 is screwed into the inside of the nut 20, and the screw 21 passes through the concave hole 18 of the other side of the limiting sleeve 8 and the hole 19 of the rotating ring 10.

[0027] In use, after the rotating ring 10 engages the limiting plate 16 and the locking block 17, the screw 21 passes through the inside of the recess 18 and the hole 19 and is tightened with the nut 20 by thread, which can prevent the rotating ring 10 from rotating and causing the rotating block 12 to rotate out of the slot 7.

[0028] In actual use, the spline sleeve 2 is fitted onto the outer surface of the rotating rod 1, and the external spline gear 3 is installed onto the side wall of the gear 4. It is connected and fixed by bolts and cylindrical pins, which increases the tooth surface width, improves the maintainability of the equipment, and prevents the gear from disengaging. The rotating block 12 between the limiting sleeves 8 is placed on the outer surface of the slot 7. The rotating ring 10 rotates, and the teeth 14 mesh with the tooth groove 13, driving the rotating block 12 to rotate, so that the outer end of the rotating block 12 rotates into the inside of the slot 7. After the rotating ring 10 rotates, the lower limiting plate 16 moves inside the arc groove 15. When the limiting plate 16 rotates to the point where the locking block 17 is engaged inside the limiting plate 16, the rotating block 12 is fixed. After the rotating ring 10 engages the limiting plate 16 and the locking block 17, the screw 21 passes through the inside of the concave hole 18 and the hole 19, and is tightened with the nut 20 by threads to fix it, which can prevent the rotating block 12 from rotating out of the slot 7 when the rotating ring 10 rotates.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gearbox gearing shaft system structure for a high-speed wire rod mill, characterized in that: The gear shift shaft system structure of the speed increase gearbox of the high-speed wire rod mill includes: a rotating rod (1), a spline sleeve (2) installed at the center of the outer surface of the rotating rod (1), external spline gears (3) installed on both sides of the spline sleeve (2), a gear shift gear (4) installed on the side wall of the external spline gear (3), a limit component (5) installed on the outer side wall of the gear shift gear (4), a fastening component (6) installed through the surface of the limit component (5), and a slot (7) opened on the outer surface of the rotating rod (1), with the limit component (5) and the slot (7) located on the same plane.

2. The gear shaft system structure of a high-speed wire rod mill speed increaser according to claim 1, characterized in that: The limiting component (5) includes a set of symmetrically placed limiting sleeves (8). Several connecting rods (9) are fixedly installed inside the limiting sleeves (8). The connecting rods (9) are evenly distributed in a ring array. A rotating ring (10) is installed between the set of limiting sleeves (8).

3. The gear shaft system structure of a high-speed wire rod mill speed increaser according to claim 2, characterized in that: The outer surface of the connecting rod (9) is fitted with a bearing (11), and the outer surface of the bearing (11) is fitted with a rotating block (12). The outer end of the rotating block (12) is located inside the slot (7). A toothed groove (13) is opened on the outer surface of one end of the rotating block (12). Several sets of teeth (14) are installed on the inner wall of the rotating ring (10). The teeth (14) mesh with the toothed groove (13).

4. The gearbox gear system structure of a high-speed wire rod mill according to claim 3, characterized in that: The side wall of the rotating block (12) is provided with an arc groove (15), and the inner wall of the rotating ring (10) is provided with several limiting plates (16). The limiting plates (16) are located inside the arc groove (15), and a locking block (17) is installed inside the arc groove (15). The locking block (17) is locked inside the limiting plate (16).

5. The gearbox gear system structure of a high-speed wire rod mill according to claim 2, characterized in that: The outer surface of the limiting sleeve (8) is provided with a concave hole (18), and the outer surface of the rotating ring (10) is provided with a hole (19).

6. The gear shaft system structure of a high-speed wire rod mill speed increaser according to claim 1, characterized in that: The fastening assembly (6) includes a nut (20), which is fixed in the recess (18) of a side limiting sleeve (8). A screw (21) is screwed into the inside of the nut (20), and the screw (21) passes through the recess (18) of the other side limiting sleeve (8) and the hole (19) of the rotating ring (10).

7. The gear shaft system structure of a high-speed wire rod mill speed increaser according to claim 1, characterized in that: The external spline gear (3) is mounted on the side wall of the gear shift gear (4).

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