Usuarios Model personalizado

Usuarios.php

<?php

namespace App\Models\Usuarios;

use Illuminate\Auth\Authenticatable;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Hash;
use Illuminate\Notifications\Notifiable;

class Usuarios extends Model implements AuthenticatableContract, CanResetPasswordContract {

    use Authenticatable,
        CanResetPassword,
        Notifiable;

    protected $table = 'tb_usuarios';
    protected $primaryKey = 'usuario_id';
    protected $guarded = ['usuario_id'];
    public $timestamps = false;

    // ---------------------------------
    // ------------- AUTH --------------
    // ---------------------------------
    public function setUsuarioSenhaAttribute($senha) {
        $this->attributes['usuario_senha'] = Hash::make($senha);
    }

    public function getAuthIdentifier() {
        return $this->usuario_id;
    }

    public function getAuthPassword() {
        return $this->usuario_senha;
    }

    public function getRememberToken() {
        return $this->usuario_token;
    }

    public function getRememberTokenName() {
        return 'usuario_token';
    }

    public function getEmailForPasswordReset() {
        return $this->usuario_email;
    }

    public function sendPasswordResetNotification($token) {
        $this->notify(new \App\Notifications\ResetPassword($token));
    }

    public function routeNotificationForMail() {
        return $this->usuario_email;
    }
}