Wheel puller

The utility model relates to a wheel puller, and relates to the field of asphalt testing instruments, the wheel puller comprises a clamping mechanism and a pushing piece coaxially arranged with a coupling, and the pushing piece is used for pushing an equipment shaft connected with the coupling; the clamping mechanism comprises a base, a stress plate and a connecting piece, and the base and the stress plate are oppositely arranged and are connected through the connecting piece; the stress plate is provided with a clamping groove used for being connected with the coupler in a clamping mode, and the clamping groove is communicated with one end face of the stress plate. The wheel puller has the effect of improving the convenience of using the wheel puller. 本申请涉及一种拔轮器，涉及沥青测试仪器领域，其包括卡接机构和与联轴器同轴设置的顶推件，顶推件用于顶推与联轴器连接的设备轴；卡接机构包括底座、受力板和连接件，底座与受力板相对设置且通过连接件连接；受力板开设有用于卡接联轴器的卡槽，且卡槽与受力板一端面贯通。本申请具有提高使用拔轮器便捷性的效果。