CN211009503U - Special-shaped bolt convenient for quick installation of spinning disk of high-speed wire rod production line - Google Patents

Abstract

The utility model discloses a dysmorphism bolt convenient to high-speed wire rod production line laying head installs fast, including bolt head and screw rod, be equipped with special-shaped dog on the bolt head, special-shaped dog includes mutual fixed connection's mounting and stopper, a mounting terminal surface and bolt head fixed connection, a stopper terminal surface and flange outer fringe braking contact. The utility model discloses simple structure, installer convenient operation is swift, the dish of spinning is fixed reliable, and the fastening of dysmorphism bolt only needs alone to accomplish, and the dish of spinning change time only needs 15 minutes can accomplish, is showing and has shortened installation time.

Description

Special-shaped bolt convenient for quick installation of spinning disk of high-speed wire rod production line

Technical Field

The utility model relates to a fixed part especially relates to a special-shaped bolt convenient to high-speed wire rod production line spinning dish is installed fast.

Background

The laying head equipment (as shown in figure 1) is the key equipment for smooth production of high-speed wire rod production lines. When the high-speed wire rod production line is used for production, rolled pieces are bent into rings under the action of a wire laying pipe arranged on a wire laying disc, and the rings are bundled by a bundling machine to form final coiled finished products (shown in figure 5) for delivery. Because the finished coiled products of the high-speed wire production line have various specifications (generally from phi 5.5mm to phi 22mm), in order to ensure the shape of a finished ring, a spinning disk (shown in figure 2) (the spinning pipe arranged on the spinning disk has different pore diameters) needs to be frequently replaced along with different production specifications.

In the process of replacing the spinning disc, an installer uses standard hexagon socket head cap bolts, butterfly gaskets and hexagon nuts to connect the spinning disc connecting flange and the hollow shaft flange of the speed reducer, and fixes the spinning disc on the speed reducer. During production, the spinning disc rotates at high speed (the maximum rotating speed reaches 1850 r/min) along with the hollow shaft flange of the speed reducer and produces rolled piece ring spinning action. During the laying head replacement process, the laying head flange must be tightened with standard socket head cap screw coupling nuts. Otherwise, the connecting bolt is loosened due to the fact that the spinning disc rotates at a high speed along with the hollow shaft flange of the speed reducer and the rolled piece generates a large axial impact force on the spinning disc through the spinning pipe, and therefore the spinning disc is large in vibration and production requirements cannot be guaranteed. In the process of replacing the spinning disk, two persons generally cooperate with each other to fasten or disassemble the inner hexagon bolt by an installer. One person knocks the knocking wrench sleeved on the hexagon nut, and the other person holds the long sleeve inserted into the inner hexagon wrench (the inner hexagon wrench is inserted into the hexagonal hole of the standard inner hexagon bolt) and exerts force in the direction opposite to the stress direction of the knocking wrench. The instantaneous acting force of the knocking wrench is large when one person uses a hand to hammer, the hexagonal bolt cannot be guaranteed to move along with the hexagonal nut in the same direction when the other person uses a hand to hold the sleeve, the knocking deformation of the butterfly-shaped gasket is extremely small at every time, time and labor are wasted during installation of workers, and the bolt and the nut cannot be guaranteed to be fastened completely. The installation by the method takes more than 45 minutes for each laying plate replacement.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a simple structure just can make the fixed reliable dysmorphism bolt of being convenient for high-speed wire rod production line spinning disk quick installation of spinning disk.

The technical scheme is as follows: a special-shaped bolt convenient to high-speed wire rod production line laying head is installed fast, including bolt head and screw rod, be equipped with special-shaped dog on the bolt head, special-shaped dog includes mutual fixed connection's mounting and stopper, a mounting terminal surface and bolt head fixed connection, a stopper terminal surface and flange outer fringe braking contact.

Furthermore, one end face of the fixing piece of the special-shaped stop block is welded and fixed with the bolt head, and the reliability of the special-shaped stop block is improved due to the fact that stress is large in the locking process of the bolt and the nut.

Furthermore, one end face of the braking piece of the special-shaped stop block is in contact with the outer edge face of the connecting flange, so that the stress area is large, and the fracture caused by overlarge local stress is avoided.

Furthermore, the bolt head is hexagon in, the outer fringe is cylindrically, dysmorphism dog is L shape, L shape balance is to the piece for the mounting, and vertical component is the arresting member, the head terminal surface of horizontal component is the cylindrical cambered surface of indent, and its camber equals with the camber of hexagon socket head outer fringe, and both face contact and through welded fastening, because flange's fixing bolt is equipped with according to the standard in process of production, need be welded the bolt head with dysmorphism dog, the setting purpose of weld face also is the reliability when promoting the atress.

Furthermore, the inner side surface of the L-shaped vertical part faces the outer edge of the connecting flange, the inner side surface is a concave cylindrical arc surface, the curvature of the inner side surface is equal to that of the outer edge of the connecting flange of the spinning disc, and the two binding surfaces are in contact with each other during installation.

Has the advantages that: the utility model relates to an abnormal shape bolt includes special-shaped dog, and special-shaped dog includes mutual fixed connection's mounting and brake, the mounting with bolt head welded fastening inserts back in flange's the bolt hole with the shank of bolt, brake and the contact of laminating of laying head flange outer fringe arc surface, and when with nut screw in bolt, the brake is realized to the brake of special-shaped dog, and the workman only needs to accomplish the locking work of nut end can.

The utility model discloses simple structure, installer convenient operation is swift, the laying head is fixed reliable. The fastening of the special-shaped bolt can be completed by only one person, the replacement time of the spinning disc can be completed by only 15 minutes, and the replacement efficiency is 3 times that before modification.

Drawings

FIG. 1 is a schematic view of a laying head apparatus;

FIG. 2 is a schematic diagram of a laying head configuration;

FIG. 3 is a schematic structural view of a reduction box of the laying head;

FIG. 4 is a schematic view of the laying head apparatus operating principle;

FIG. 5 is a coil finish;

FIG. 6 is a schematic view of a prior art laying head installation method;

FIG. 7 is a partially enlarged schematic view of a conventional spinning disk mounting method;

FIG. 8 is a schematic view of a profiled bolt structure;

FIG. 9 is a schematic structural view of a shaped block;

FIG. 10 is a schematic view of an improved laying head mounting method of the present invention;

fig. 11 is a partially enlarged schematic view of the improved laying head mounting method of the present invention.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

This embodiment a dysmorphism bolt 8 convenient to high-speed wire rod production line spinning dish is installed fast, including bolt head and screw rod, the bolt head is interior hexagon, the outer fringe is cylindrically, be equipped with special-shaped dog 801 on the bolt head, special-shaped dog 801 is L shape, L shape balance is to the piece for the mounting, vertical part is the stopper, the head terminal surface 901 of horizontal part is the cylindrical cambered surface of indent, its camber equals with the camber of interior hexagonal bolt head outer fringe, both face contacts and passes through welded fastening, the medial surface 902 of vertical part is towards the flange outer fringe, the medial surface is the cylindrical cambered surface of indent, its camber equals with the spinning dish flange outer fringe camber, both binding face contacts during the installation.

The laying head apparatus of the high-speed wire production line shown in fig. 1 comprises: the support base 101 is used for supporting a speed reducer assembly, and the laying head 102 and a laying head reduction box assembly 103 are fastened by an inner hexagon bolt 104, a hexagon nut 105 and a butterfly gasket 106; as shown in fig. 2, the spinning disk is assembled by a set of parts, a connecting flange 202 is welded on a spinning disk body 201, and a spinning pipe 203 is fixed on the spinning disk body 201 (the fixing mode of the spinning pipe is omitted in the figure); the reducer assembly shown in fig. 3 includes a hollow shaft flange 301 and a reducer casing 302. The hollow shaft flange is arranged on the connecting shaft of the speed reducer and rotates at high speed in the production process; as shown in fig. 4, the working principle of the speed reducer equipment is that the rolling stock enters a laying head before 401, a laying head equipment 402 and a rolling stock after being bent by the laying head 403; fig. 5 shows a coil finished product packaging bundling line 501; as shown in fig. 6, a schematic diagram of a conventional method for installing a spinning disk is shown, in the prior art, an inner hexagonal wrench 601 is used to lock a bolt head of a hexagonal bolt, and then an extension sleeve 602 is sleeved on the inner hexagonal wrench, one worker presses the extension sleeve 602 with a hand, and the other worker taps a tapping wrench 603 with an iron hammer with a hand, and the force directions of the two are opposite to each other, so as to complete the requirements shown in fig. 1; fig. 7 is a partially enlarged schematic view of a conventional method for installing a spinning disc, wherein black arrows indicate the stress directions of a knocking wrench and an elongated sleeve, and the two are opposite; as shown in fig. 8, which is a schematic view of a special-shaped bolt mechanism, during manufacturing, the contact surface between the hexagon socket head cap screw 104 and the special-shaped stopper 801 is welded firmly; as shown in fig. 9, which is a schematic view of the special-shaped block mechanism, a projection radius of an arc surface 901 of an end surface of a fixing member of the special-shaped block is equal to a projection radius of the head 104 of the hexagon socket head so that the two arc surfaces can be contacted with each other and both sides of the contact part are welded, and a projection radius of an arc surface 902 of an end surface of a stopper of the special-shaped block is equal to a projection radius of the laying head connecting flange 202, wherein the projection arcs of the arc surfaces 901 and 902 can share the same straight line for symmetry, and after the special-shaped bolt is inserted into the bolt hole of the flange 202, 301, the arc surface of; as shown in fig. 10, the utility model discloses a laying head mounting method sketch map after improving, during the installation, abnormal shape bolt 8 hugs closely laying head flange 202 circular arc surface and makes it not rotate when the installer strikes the spanner 603 of strikeing of cover on hex bolts with the hand hammer to realize that the bolt fastens fast, promote laying head disk installation effectiveness at double. Fig. 11 is a schematic view showing a partially enlarged mounting method of the improved spinning disk of the present invention, so as to more clearly show the mounting process.

Claims (5)

1. The utility model provides a dysmorphism bolt convenient to high-speed wire rod production line laying head is installed fast, includes bolt head and screw rod, its characterized in that, be equipped with special-shaped dog on the bolt head, special-shaped dog includes mutual fixed connection's mounting and arresting member, a mounting terminal surface and bolt head fixed connection, an arresting member terminal surface and flange outer fringe braking contact.

2. The special-shaped bolt convenient for the rapid installation of the spinning disc of the high-speed wire rod production line according to claim 1, wherein one end face of the fixing piece of the special-shaped stop block is fixedly welded with the bolt head.

3. The shaped bolt for facilitating the quick installation of a laying head on a high speed wire rod production line according to claim 1, wherein an end face of the braking member of the shaped block is in contact with the outer edge face of the connecting flange.

4. The special-shaped bolt convenient for the rapid installation of the spinning disc of the high-speed wire rod production line according to claim 1, wherein the bolt head is of an inner hexagon shape, the outer edge of the bolt head is of a cylindrical shape, the special-shaped stop block is of an L shape, the L-shaped balance piece is of a fixing piece, the vertical piece is of a braking piece, the end face of the head of the transverse piece is of an inner concave cylindrical cambered surface, the curvature of the end face of the head of the transverse piece is equal to that of the outer edge of the bolt head of the inner hexagon, and the two surfaces of the transverse.

5. The special-shaped bolt convenient for the rapid installation of the spinning disc of the high-speed wire rod production line according to claim 4, wherein the inner side surface of the L-shaped vertical member faces the outer edge of the connecting flange, the inner side surface is a concave cylindrical cambered surface, the curvature of the concave cylindrical cambered surface is equal to that of the outer edge of the connecting flange of the spinning disc, and the inner side surface and the outer edge of the connecting flange of the spinning disc are in contact with each other in a binding surface during installation.

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