Novel main shaft structure of plate and strip uncoiler

Abstract

The utility model discloses a novel main shaft structure of a plate and strip uncoiler. The novel main shaft structure comprises a main shaft, a composite conical head, a conical head baffle, an end cover, a lock nut, a load bearing, a thrust bearing, a rear baffle and a gland, the main shaft is a solid shaft, the composite conical head is arranged at the front end of the main shaft through a key, and the conical head baffle is combined with the main shaft through a bolt; the load bearing is arranged between the front end of the uncoiler box body and the main shaft, the lock nut is arranged on the main shaft at the front end of the load bearing, the end cover is arranged on the main shaft through the oil seal assembly, and the thrust bearing is arranged between the tail end of the main shaft and the rear end of the uncoiler box body. Due to the structural arrangement of the composite conical head, the use of sleeves with different specifications can be met, the connection between the composite conical head and the sleeve can be quickly and accurately realized without stopping the machine to replace the tensioning block and the positioning key, and the deviation of the center position of the sleeve is avoided in the working process of the uncoiling machine; the device is simple in structure and wide in application range, the production efficiency is greatly improved, and the production investment and the labor intensity are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a strip uncoiler technical field, especially in a novel strip uncoiler main shaft structure. BACKGROUND

[0002] The thick foil shear is the key equipment of the slitting strip material, and the uncoiler is arranged at the front end of the thick foil shear unit inlet part, the uncoiler body is the welded box shape structure, the frequency conversion speed regulation motor provides the initiative force for the uncoiler through the gear box deceleration, and the main shaft of the uncoiler is a hollow shaft, which is supported on the gear box body through two bearings, the uncoiler main shaft has two functions, one is to drive the strip coil to rotate, and the other is to support the expansion of the strip coil sleeve; the transmission side uncoiler and the operation side uncoiler of the prior art thick foil shear front end all adopt the hydraulic expansion structure to support the expansion of the both ends of the strip coil drum, the taper head of the hydraulic expansion structure is composed of four expansion blocks, the center position may be offset in use, and when the uncoiling speed reaches 150m / min or above, the layering of the winding, the edge cutting and other influences may be caused, if the product quality requirement is strict, the speed can only continue to decline, which seriously restricts the production efficiency of the thick foil shear; another defect of this structure is that when replacing different specifications of the coiled material, the machine needs to be stopped, and the expansion block needs to be replaced, so the process is complicated, and the production efficiency is greatly affected. SUMMARY

[0003] The utility model aims at overcoming the prior art's insufficient, provide a kind of novel strip uncoiler main shaft structure, and the scope of application is extensive, improve the production efficiency of uncoiler.

[0004] The technical scheme adopted by the utility model is:

[0005] A kind of novel strip uncoiler main shaft structure, including main shaft, composite taper head, taper head baffle, end cover, lock nut, load bearing, thrust bearing, back baffle and gland;

[0006] The main shaft is solid shaft, and the key groove is arranged on the inner hole wall of the composite taper head corresponding to the front end of the main shaft, the composite taper head is connected on the front end of the main shaft by key, and the multiple-step tapered mounting steps are arranged on the outer edge of the composite taper head, and the taper of the outer taper surface of each step mounting step is matched with the taper of the inner diameter of the sleeve end of different specifications of strip coil;A circle of step grooves is arranged on the front end surface of the composite taper head, and the taper head baffle is arranged in the step groove and is clamped with the end surface of the main shaft by bolt;

[0007] The load bearing is arranged between the front end of the uncoiler box body and the main shaft, the lock nut is arranged on the main shaft at the front end of the load bearing corresponding to the inner ring of the load bearing, the end cover is arranged on the main shaft between the load bearing and the composite taper head by oil seal assembly, and the end cover is fixed on the front end surface of the uncoiler box body by bolt;

[0008] The thrust bearing is arranged between the end of the main shaft and the rear end of the uncoiler box body; the outer circle of the rear baffle plate corresponds to the inner ring of the thrust bearing and is fixed on the rear end surface of the main shaft by bolts; the inner surface of the gland is provided with a convex ring, the end surface of the convex ring corresponds to the outer ring of the thrust bearing, and the gland is fixed on the uncoiler box body by bolts.

[0009] Specifically, the composite taper head is further provided with a positioning key groove on each mounting step, and the positioning key groove corresponds to the positioning groove on the two ends of the sleeve of the strip coil; and the positioning key is mounted in the positioning key groove by bolts.

[0010] Specifically, the rear end surface of the composite taper head is provided with a weight-reducing ring groove.

[0011] Specifically, the oil seal assembly is made of fluorine rubber.

[0012] Due to the adoption of the technical scheme, the utility model has the following advantages:

[0013] The structure of the composite taper head can meet the use of different specifications of sleeves, the positioning key can quickly and accurately realize the connection of the composite taper head and the sleeve, and the center position of the sleeve is prevented from deviating during the operation of the uncoiler. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the sectional view of the connection between the main shaft and the box body of the driving side uncoiler.

[0015] Figure 2 is the sectional view of the connection between the main shaft and the box body of the operation side uncoiler.

[0016] Figure 3 is the schematic view of the composite taper head.

[0017] Figure 4 is the perspective view of the sleeve cooperating with the composite taper head.

[0018] In the figure: 1-main shaft, 2-composite taper head, 21-positioning key groove, 3-taper head baffle plate, 4-end cover, 41-oil seal assembly, 5-lock nut, 6-load bearing, 7-thrust bearing, 8-rear baffle plate, 9-gland, 10-uncoiler box body, 11-sleeve. DETAILED DESCRIPTION

[0019] The utility model will be further explained and described below in combination with the drawings and examples, and the protection scope of the utility model cannot be limited by this, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0020] The drawings attached Figures 1-4 The utility model discloses a novel plate strip uncoiler spindle structure, including spindle 1, compound taper head 2, taper head baffle 3, end cover 4, lock nut 5, load bearing 6, thrust bearing 7, back baffle 8 and gland 9.

[0021] The spindle 1 is a solid shaft, the compound taper head 2 is connected to the front end of the spindle 1 by a key, and the outer edge of the compound taper head 2 is provided with multiple stepped taper mounting steps, the outer taper surfaces of the mounting steps are matched with the inner diameter tapers of the ends of the sleeves 11 of the plate strip coils of different specifications, and the front end surface of the compound taper head 2 is provided with a ring of step grooves.

[0022] The load bearing 6 is arranged between the front end of the uncoiler box body 10 and the spindle 1, the lock nut 5 is arranged on the front end of the spindle 1 corresponding to the inner ring of the load bearing 6, the end cover 4 is arranged on the spindle 1 between the load bearing 6 and the compound taper head 2 through an oil seal assembly 41, and the end cover 4 is fixed on the front end surface of the uncoiler box body 10 through bolts.

[0023] The thrust bearing 7 is arranged between the tail end of the spindle 1 and the rear end of the uncoiler box body 10, the back baffle 8 is arranged on the rear end surface of the spindle 1 corresponding to the inner ring of the thrust bearing 7 through bolts, and the inner surface of the gland 9 is provided with a convex ring.

[0024] In use, the sleeve 11 of the plate strip coil is adjusted to the center corresponding position of the compound taper head 2 of the uncoiler on both sides of the loading trolley, the positioning key is arranged in the corresponding positioning key groove 21 of the compound taper head 2 according to the sleeve size of the plate strip coil, the positioning keys of the compound taper heads 2 on both sides are matched with the two positioning grooves on the sleeve through manual point operation of the two uncoilers, the uncoiler rack is driven by the hydraulic cylinder to move on the guide rail of the machine base to insert the compound taper heads 2 into the sleeves on both sides of the sleeve, the positioning keys on the compound taper heads 2 are connected with the positioning grooves on the sleeve, the plate strip coil is quickly positioned and mounted, and the uncoiler is started to perform slitting work.

[0025] The part not described in the utility model is prior art.

[0026] For the purpose of disclosing the invention of the present application, the embodiments selected in this document are currently considered appropriate, but it should be understood that the present application is intended to include all changes and improvements of the embodiments within the scope of the present concept and application.

Claims

1. A new type of strip uncoiler spindle structure, characterized in that, The main shaft, the composite taper head, the taper head baffle, the end cover, the lock nut, the load bearing, the thrust bearing, the rear baffle and the gland are included. The main shaft is a solid shaft, and a key groove is arranged on the inner hole wall of the composite taper head corresponding to the front end of the main shaft. The composite taper head is connected to the front end of the main shaft through the key. A plurality of stepped taper installation steps are arranged on the outer edge of the composite taper head. The tapers of the outer taper surfaces of the installation steps are matched with the tapers of the inner diameters of the sleeve end portions of the strip coil of different specifications respectively. A step groove is arranged at the center of the front end surface of the composite taper head. The taper head baffle is arranged in the step groove and is clamped to the end surface of the main shaft through bolts. The load bearing is arranged between the front end of the uncoiler box body and the main shaft. The lock nut corresponding to the inner ring of the load bearing is arranged on the main shaft at the front end of the load bearing. The end cover is arranged on the main shaft between the load bearing and the composite taper head through an oil seal assembly, and is fixed to the front end surface of the uncoiler box body through bolts. The thrust bearing is arranged between the end of the main shaft and the rear end of the uncoiler box body. The outer circumference of the rear baffle corresponds to the inner ring of the thrust bearing and is fixed to the rear end surface of the main shaft through bolts. The inner surface of the gland is provided with a convex ring. The end surface of the convex ring corresponds to the outer ring of the thrust bearing, and the gland is fixed to the uncoiler box body through bolts.

2. A new strip uncoiler spindle structure according to claim 1 characterized in that: Positioning key grooves are arranged on the installation steps of the composite taper head corresponding to the positioning grooves on the two ends of the sleeve of the strip coil. Positioning keys are arranged in the positioning key grooves through bolts.

3. The new strip plate uncoiler spindle structure according to claim 1, characterized in that: A weight-reducing ring groove is arranged on the rear end surface of the composite taper head.

4. The new strip plate uncoiler spindle structure according to claim 1, characterized in that: The oil seal assembly is made of fluorine rubber.

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