Elevator safety tongs stable in braking comprise a main safety tong body, an auxiliary safety tong body and a connecting rod, the main safety tong body and the auxiliary safety tong body are connected through the connecting rod, the main safety tong body comprises a first tong base and a second tong base, a first wedge block is arranged on the first tong base, a second wedge block is arranged on the second tong base, and brake pads are arranged on the opposite inner sides of the first wedge block and the second wedge block. A group of connecting rod fixing blocks are arranged on the upper portions of a group of connecting steel channels, penetrating holes are formed in the connecting rod fixing blocks, main power rods are arranged in the penetrating holes, crank connecting rods are arranged on the main power rods, one ends of the crank connecting rods are connected to the upper portion of the first wedge block, the auxiliary safety tong body and the main safety tong body are the same in structure, and each of the first tong base, the second tong base, the first wedge block and the second wedge block is trapezoidal. The elevator safety tongs have the beneficial effects that during braking, the first wedge block is attached to a sliding rail firstly, friction deceleration is conducted, then the second wedge block is driven to be attached to the sliding rail, the wedge blocks on the two sides are attached to the sliding rail respectively, instant locking of the wedge blocks and the sliding rail is prevented, braking stability is effectively improved, and the braking distance is effectively shortened.
一种制动平稳的电梯安全钳,包括主安全钳、副安全钳和连杆,主安全钳和副安全钳通过连杆相连接,主安全钳包括第一钳座和第二钳座,第一钳座上设有第一楔块,第二钳座上设有第二楔块,第一楔块和第二楔块相向内侧设有刹车片,一组连接槽钢上部设有一组连杆固定块,连杆固定块上设有穿孔,穿孔内设有主动力杆主动力杆上设有曲柄连杆,曲柄连杆一端连接于第一楔块上方,副安全钳与主安全钳结构相同,第一钳座、第二钳座、第一楔块和第二楔块均为梯形,有益效果:制动时第一楔块先贴合滑轨,摩擦减速,然后带动第二楔块贴合滑轨,两侧楔块分别贴合滑轨,防止楔块与滑轨瞬间抱死,有效提高制动稳定性,也使得制动距离有效缩短。
Elevator safety tongs stable in braking
一种制动平稳的电梯安全钳
13.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |
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