Fire fighting machine star triangle emergency starting device
An emergency start-up, star-delta technology, applied to electrical components, electrical switches, circuits, etc., can solve problems such as equipment failure, excessive current, easy ignition and tripping of devices, and achieve stable structure, simple and reasonable structure, and product safety high performance effect
Pending Publication Date: 2019-08-20
新疆南开电气有限公司
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Problems solved by technology
[0002] The traditional star-delta emergency starting device usually adopts a two-layer design, and the delta start is realized separately, which is equivalent to a full-voltage start. It is suitable for long-term operation and the head of the water pump is not up to the standard, so it cannot really meet the requirements of star-delta starting, and the traditional star-delta emergency starting device usually uses contactors to cooperate to realize the closing and breaking function. When the electrical components involved fail , it is easy to cause the failure of the whole equipment
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[0023] As shown in the accompanying drawings, a star-delta emergency starting device for fire-fighting machinery includes a device assembly 2 and a transmission mechanism. The device assembly 2 is equipped with a main shaft 4 inside, and the top of the main shaft 4 is equipped with a rotating handle 1. One-layer transmission arm 5, second-layer transmission arm 6 and three-layer transmission arm 7 are respectively installed on the main rotating shaft 4, and described transmission arm is respectively connected with corresponding one-layer connecting rod 10, second-layer connecting rod 9 and three-layer Connecting rod 8, a spring 12 and a driving rod 13 are installed under one end of the connecting rod, and the connecting rod, spring 12 and driving rod 13 respectively form a layer of spring driving mechanism, a second layer of spring driving mechanism and a triple layer of spring driving mechanism, the corresponding sliders 11 are installed under the spring driving mechanism, and...
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The invention discloses a fire fighting machine star triangle emergency starting device comprising a device assembly and a transmission mechanism. A main rotating shaft is installed in the device assembly, a rotating handle is installed at a top end of the main rotating shaft, transmission arms are installed on the main rotating shaft and are connected with corresponding connecting rods, a springand a driving rod are installed below one end of each of the connecting rods, spring driving mechanisms are formed by the connecting rods, the springs and the driving rods, corresponding sliders are installed under the spring driving mechanisms, clamping members are installed at left and right sides of the sliders, and the outer side of the transmission mechanism is equipped with contact terminals. The structure of the fire fighting machine star triangle emergency starting device is simple and reasonable, a three-layer full mechanical structure design is adopted, the structure is more stable,the complete star triangle start is achieved, step-down voltage and full voltage are combined, the safety performance of a product is high, and the mechanical emergency start required by fire protection is truly achieved.
Description
technical field [0001] The invention relates to a fire-fighting mechanical star-delta emergency starting device, which belongs to the technical field of fire-fighting cabinet emergency devices. Background technique [0002] The traditional star-delta emergency starting device usually adopts a two-layer design, and the delta start is realized separately, which is equivalent to a full-voltage start. It is suitable for long-term operation and the head of the water pump is not up to the standard, so it cannot really meet the requirements of star-delta starting, and the traditional star-delta emergency starting device usually uses contactors to cooperate to realize the closing and breaking function. When the electrical components involved fail , it is easy to cause the failure of the whole device. Contents of the invention [0003] (1) Technical problems to be solved [0004] In order to solve the above problems, the present invention proposes a simple and reasonable structur...
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IPC IPC(8): H01H19/46
CPCH01H19/46
Inventor 李昊东
Owner 新疆南开电气有限公司