这是一段非常粗略的代码，应该可以帮助您开始。它所做的是查找最近的“未来”或“发布”帖子，如果该值与最新安排的帖子相差不到1小时，它会将当前帖子安排为1小时加上找到的“最近”时间。

function force_time_between_posts_wpse_104677($data, $postarr) {
  global $wpdb;
  if (empty($postarr[\'ID\'])) return $data;

  $latest = $wpdb->get_var("
    SELECT post_date
    FROM {$wpdb->posts} 
    WHERE post_status IN(\'future\',\'publish\') 
    AND post_type = \'post\' 
    AND ID != {$postarr[\'ID\']}
    ORDER BY post_date DESC
    LIMIT 1");
  $distance = 60; // post publication spacing in minutes
  $latest = strtotime($latest);
  $current = strtotime($data[\'post_date\']);

  if ($latest < $current) {
    $diff = $current - $latest;
  } else { 
    $diff = 0;
  }

  if ($diff >= 0 && $diff < ($distance * 60)) {
    $new_date = $latest + ($distance * 60);
    $date = date(\'Y-m-d H:i:s\',$new_date);
    $date_gmt = get_gmt_from_date($date);
    $data[\'post_date\'] = $date;
    $data[\'post_date_gmt\'] = $date_gmt;
    $data[\'post_status\'] = \'future\';
  }
  return $data;
}
add_action(\'wp_insert_post_data\',\'force_time_between_posts_wpse_104677\',1,2);

您可能希望将某些角色从该post调度中免除，或者仅对单个角色要求它，以帮助保持事情的可管理性。