CN2615407Y

CN2615407Y - Easy-to-dismount fastening apparatus for roll and shaft

Info

Publication number: CN2615407Y
Application number: CN 03217440
Authority: CN
Inventors: 范玉新
Original assignee: Handan Iron and Steel Group Co Ltd
Current assignee: Handan Iron and Steel Group Co Ltd
Priority date: 2003-05-22
Filing date: 2003-05-22
Publication date: 2004-05-12
Anticipated expiration: 2013-05-22

Abstract

The utility model relates to a roll and shaft clamp device facilitating disassembling, in particular to a clamp device of cone fit connection between roll and shaft, belonging to the mechanical device technique field. The utility model is designed to solve difficult disassembling roll and shaft, comprising a roll, a shaft and a shim, pyramidal face is fit coupled between roll and shaft, modification of the utility model lies in that a projecting end socket of the shaft is provided with a wedge iron hole, a wedge iron is built-in the wedge iron hole, and the shim is arranged between the roll and the wedge iron. The utility model utilizes axial displacement in wedge iron moving to achieve tight connection of roll and shaft, as the slide face of the wedge iron is small, the utility model has the advantages of easy loose, non chip damage, quite convenient fastening and disassembling and reliable utilization, applicable to pyramidal face coupling roll and shaft, in particular to clamp device of major diameter pyramidal face coupling roll and shaft.

Description

Easy-to-dismount roller and axle securing means

Technical field

The utility model relates to the securing means that is connected of conical surface between securing means, especially roller between roller and the axle, the axle, belongs to the mechanical device technical field.

Background technique

In the Machine Design, roller and the normal fastening means that is connected that adopts cone match of axle, the center that is roller or wheel is provided with conical bore, and it is conical that the shaft part that is connected with it should be mutually, by diminished shaft stretch out locking nut on the termination and pad with the two close and firm be linked together.This kind roller, axle are connected and fixed mode in actual use, when roller, the axle diameter less, the diameter of thread of locking nut is corresponding hour, it is convenient that the dismounting of locking nut can be said to be, when roller, diameter are big, during the corresponding increase of the diameter of thread of locking nut, the problem of the dismounting difficulty of locking nut just displays highlightedly.In the straightening machine as steel rolling production, the diameter of thread of locking nut reaches and is 120MM, pitch is 4MM, and during the straightening machine operation was used, the helical thread portion on the roll shaft collided with impaired in Environmental Conditions easily, the diameter of thread and pitch are bigger in addition, so dismounting is very difficult, the normal straightening machine maintenance maintenance workload that therefore is multiplied, for this reason, tackle this kind axle, the roller fastening means is improved, eliminate it and use defective.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of easy-to-dismount roller, axle securing means, to overcome the use defective of existing apparatus.

The alleged problem of the utility model realizes with following technical solution:

A kind of easy-to-dismount roller and axle securing means have roller, axle and pad in the formation, cone match connects between roller, the axle, and its improvement is that the external part headband of described axle has the drift hole, and drift is equipped with drift in the hole, and described pad is between roller and drift.

Above-mentioned easy-to-dismount roller and shaft device, described drift is made up of single face drift 1,2, the width L in described drift hole 3 is greater than the combined width L ' of single face drift 1,2, described pad 4 is provided with drift groove 4-1, the single face drift 1 that is adjacent is inlayed within it, and the little head end of another single face drift 2 has screw rod 2-1 and little locknut 5.

The utility model is established drift hole and drift on the external part of axle, axial displacement when utilizing drift to move realizes the tight connection of roller, axle, because the drift slip surface is little, be easy to become flexible, and be not vulnerable to the damage of colliding with, thus fastening, dismounting is very convenient, and use reliable, the suitable securing means use that connects roller, axle as conical surface connection roller, axle, especially the major diameter conical surface.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

Consult accompanying drawing, be illustrated as the example that is used for steel rolling straightening machine straightening roller and roll shaft.8 is that roll shaft, 9 is straightening roller among the figure, and cone match connects between the two.Drift hole 3 is located at the straightening roller shaft extension and goes out on the termination, and drift is by 1,2 involutory compositions of single face drift, and the width L ' after involutory is less than the width L in drift hole.The drift groove 4-1 on the pad 4 and the shape of single face drift 1, size coupling, single face drift 1 is inlayed and is fixed within it, when screwing little locknut 5, upwards operation of single face drift 2, straightening roller 9 moves to left along the conical surface of roll shaft 8, closely link together with roll shaft 8, also touching single face drift 2 downwards just can unclamp securing means to unclamp little locknut 5.The external diameter of the plain washer 7 below the little locknut 5 is greater than the groove width in drift hole, and to reserve the single face drift 2 up gap when fastening, spring pad 6 is used to prevent that little locknut 6 is in use loosening.

Claims

1. an easy-to-dismount roller and an axle securing means is characterized in that, have roller [9], axle [8] and pad in the formation, cone match connects between roller, the axle, the external part headband of described axle has the drift hole, and drift is equipped with in [3] in the drift hole, and described pad [4] is between roller and drift.

2. easy-to-dismount roller and the shaft device according to claim 1, it is characterized in that, described drift is made up of single face drift [1], [2], the width L in described drift hole [3] is greater than the combined width L ' of single face drift [1], [2], described pad [4] is provided with drift groove [4-1], the single face drift [1] that is adjacent is inlayed within it, and the little head end of another single face drift [2] has screw rod [2-1] and little locknut [5].