CN-224229200-U - Gear shafting structure of speed increasing box of high-speed wire mill

CN224229200UCN 224229200 UCN224229200 UCN 224229200UCN-224229200-U

Abstract

The utility model relates to the technical field of speed increasing boxes of wire rolling mills, in particular to a gear shafting structure of a speed increasing box of a high-speed wire rolling mill, which comprises a rotating rod, wherein a spline sleeve is arranged in the center of the outer surface of the rotating rod, external spline gears are arranged on two sides of the spline sleeve, gear gears are arranged on the side walls of the external spline gears, a limiting component is arranged on the outer side walls of the gear gears, a fastening component is arranged on the surface of the limiting component in a penetrating way, a clamping groove is formed in the outer surface of the rotating rod, and the limiting component and the clamping groove are positioned on the same plane; the utility model provides a gear shafting structure of high-speed wire rod rolling mill speed increasing box utilizes spacing subassembly, makes spacing subassembly be located the surface of draw-in groove and fixes spacing subassembly through fastening component, installs spacing subassembly at the lateral wall of gear, thereby avoids gear slip to break away from the gear when carrying out spacing installation use and dismantlement to gear.

Inventors

LIU GUANGMING
NIU GUOFENG
XU BOWEN
CHEN HAO
WANG BO
ZHANG CONGCHUN
LI HAO
FENG LEI
LI CHONG

Assignees

青岛特殊钢铁有限公司

Dates

Publication Date: 20260512
Application Date: 20250630

Claims (7)

1. A gear shafting structure of a speed increasing box of a high-speed wire rolling mill is characterized by comprising a rotating rod (1), wherein a spline sleeve (2) is arranged at the center of the outer surface of the rotating rod (1), external spline gears (3) are arranged on two sides of the spline sleeve (2), gear gears (4) are arranged on the side walls of the external spline gears (3), limiting components (5) are arranged on the outer side walls of the gear gears (4), fastening components (6) are arranged on the surfaces of the limiting components (5) in a penetrating mode, clamping grooves (7) are formed in the outer surface of the rotating rod (1), and the limiting components (5) and the clamping grooves (7) are located on the same plane.
2. The gear shafting structure of the speed increasing box of the high-speed wire mill, as set forth in claim 1, wherein the limiting assembly (5) comprises a group of symmetrically placed limiting sleeves (8), a plurality of connecting rods (9) are fixedly arranged in the limiting sleeves (8), the connecting rods (9) are uniformly distributed in an annular array, and a rotating ring (10) is arranged between the group of limiting sleeves (8).
3. The gear shafting structure of the speed increasing box of the high-speed wire mill, according to claim 2, is characterized in that a bearing (11) is arranged on the outer surface of the connecting rod (9), a rotating block (12) is arranged on the outer surface of the bearing (11), the outer end of the rotating block (12) is positioned in the clamping groove (7), tooth grooves (13) are formed in the outer surface of one end of the rotating block (12), a plurality of groups of teeth (14) are arranged on the inner wall of the rotating ring (10), and the teeth (14) are meshed with the tooth grooves (13).
4. The gear shafting structure of the speed increasing box of the high-speed wire rolling mill according to claim 3, wherein the arc groove (15) is formed in the side wall of the rotating block (12), a plurality of limiting plates (16) are arranged on the inner wall of the rotating ring (10), the limiting plates (16) are located in the arc groove (15), the clamping blocks (17) are arranged in the arc groove (15), and the clamping blocks (17) are clamped in the limiting plates (16).
5. The gear shafting structure of the speed increasing box of the high-speed wire mill, which is disclosed in claim 2, is characterized in that a concave hole (18) is formed in the outer surface of the limiting sleeve (8), and a hole (19) is formed in the outer surface of the rotating ring (10).
6. The gear shafting structure of the speed increasing box of the high-speed wire mill, as set forth in claim 1, wherein the fastening assembly (6) comprises a nut (20), the nut (20) is fixed in a concave hole (18) of the limit sleeve (8) on one side, a screw (21) is screwed in the nut (20), and the screw (21) penetrates through the concave hole (18) of the limit sleeve (8) on the other side and a hole (19) of the rotating ring (10).
7. The gear shafting structure of the speed increasing box of the high-speed wire mill, as set forth in claim 1, is characterized in that the external spline gear (3) is mounted on the side wall of the gear (4).

Description

Gear shafting structure of speed increasing box of high-speed wire mill Technical Field The utility model relates to the technical field of speed increasing boxes of wire rolling mills, in particular to a gear shafting structure of a speed increasing box of a high-speed wire rolling mill. Background The internal of the speed increasing box in the high-speed area of the high-speed line has 14 shafting and 9 gears, rolling speeds of different specifications are realized by the combination of different gears, a gear shifting mechanism plays a crucial role in the stable operation of the equipment, the contact length of an external spline gear and an internal spline sleeve in the gear shifting mechanism is increased, and the gear shifting is frequently caused by stress impact and abrasion in the periodical steel biting and releasing processes, so that the stable operation of production is influenced. In the prior art, a gear external spline sleeve is additionally used for turning a gear worn by a gear shifting helical gear, embedded in an original old gear, in interference fit, connected with a cylindrical pin, and then a bearing position is finely machined to increase the width of a spline transmission shaft and the actual effective contact length of a spline so as to avoid the gear shift-out of the spline. Because the external spline gear is added when the device is used, the width of the gear is also increased, the original limiting positions on the outer side of the gear are different, the side wall of the gear is lack of limiting, and sliding is easy to occur when the device is used. Disclosure of utility model The utility model aims to provide a gear shafting structure of a speed increasing box of a high-speed wire rod mill, which aims to solve the problems in the background technology. The gear shafting structure of the speed increasing box of the high-speed wire rolling mill comprises a rotating rod, a spline sleeve is arranged in the center of the outer surface of the rotating rod, external spline gears are arranged on two sides of the spline sleeve, gear gears are arranged on the side walls of the external spline gears, a limiting component is arranged on the outer side walls of the gear gears, a fastening component is arranged on the surface of the limiting component in a penetrating mode, a clamping groove is formed in the outer surface of the rotating rod, and the limiting component and the clamping groove are located on the same plane. Preferably, the limiting assembly comprises a group of symmetrically placed limiting sleeves, a plurality of connecting rods are fixedly installed in the limiting sleeves, the connecting rods are uniformly distributed in an annular array, and a rotating ring is installed between the group of limiting sleeves. Preferably, the bearing is arranged on the outer surface of the connecting rod, the rotating block is arranged on the outer surface of the bearing, the outer end of the rotating block is positioned in the clamping groove, the tooth slot is formed in the outer surface of one end of the rotating block, a plurality of groups of teeth are arranged on the inner wall of the rotating ring, and the teeth are meshed with the tooth slot. Preferably, the arc groove has been seted up to the lateral wall of commentaries on classics piece, and a plurality of limiting plate is installed to the inner wall of swivel becket, and the limiting plate is located the inside in arc groove, and the internally mounted in arc groove has the fixture block, and the fixture block card is to the inside of limiting plate. Preferably, the outer surface of the limit sleeve is provided with a concave hole, and the outer surface of the rotating ring is provided with a hole. Preferably, the fastening assembly comprises a nut, the nut is fixed in the concave hole of the limit sleeve at one side, the screw is screwed in the nut, and the screw penetrates through the concave hole of the limit sleeve at the other side and the hole of the rotating ring. Preferably, the external spline gear is mounted to a side wall of the gear. Compared with the prior art, the utility model has the beneficial effects that: The utility model provides a pair of high-speed wire rod rolling mill speed increasing box gear shafting structure utilizes spacing subassembly, makes spacing subassembly be located the surface of draw-in groove and fixes spacing subassembly through fastening component, installs spacing subassembly at gear's lateral wall, thereby avoids gear to slide when carrying out spacing installation use and dismantlement to gear and breaks away from the gear. Drawings FIG. 1 is a schematic perspective view of a gear shafting structure of a speed increasing box of a high-speed wire mill according to the present utility model; FIG. 2 is a schematic perspective view of a spacing assembly according to the present utility model; FIG. 3 is a schematic view of the enlarged perspective structure of FIG. 2A according to t