You can use a padding for the button and you can play with drawablePadding
<Button
style="@style/botonesMenu"
android:padding="15dp"
android:drawablePadding="-15dp"
android:text="@string/actualizarBD"
android:textAlignment="gravity"
android:gravity="center"
android:layout_row="1"
android:layout_column="0"
android:drawableTop="@drawable/actualizar"
android:id="@+id/btnActualizar"
android:onClick="actualizarBD" />
you can use a specific padding depends where put your drawable, with android:paddingLeft="10dp" or android:paddingBottom="10dp" or android:paddingRight="10dp" or android:paddingTop="10dp"