spring operating mechanism

A technology of operating mechanism and spring cylinder, which is applied in the protection switch operation/release mechanism, adjustment of protection switch conditions, etc., can solve problems such as difficulty in adjusting the spring pre-compression amount, and achieve convenient screwing of the lock nut, convenient adjustment, friction force reduction effect

Active Publication Date: 2020-07-31
PINGGAO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a spring operating mechanism to solve the problem in the prior art that it is difficult to adjust the pre-compression of the spring because the pre-tightening nut rotates with the locking nut when the locking nut is screwed.

Method used

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Embodiment Construction

[0020] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] The specific embodiment of spring operating mechanism of the present invention, as figure 1 and figure 2 As shown, the spring operating mechanism includes a spring barrel 2 and a spring installed in the spring barrel 2 and a spring tray 5. The spring barrel 2 is fixed on the spring barrel support 3, and the spring barrel 2 is also provided with a spring pressing rod 12. The spring in this embodiment is a combination spring 9, and in other embodiments, the spring can be a single spring. The spring barrel 2 is provided with a screw rod 8 with one end fixed on the chain rod joint 10 and the other end protruding from the spring tray 5 . The screw rod 8 is connected with a pre-tightening nut 7 and a lock nut 4 to prevent the pre-tightening nut 7 from loosening, and the pre-tightening nut 7 presses the spring tray 5 to pre-tighten the combined spring...

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Abstract

The invention relates to a spring operating mechanism. The spring operating mechanism comprises a spring cylinder, and a spring and a spring tray installed in the spring cylinder. The spring cylinderis internally provided with a screw rod extending out of the spring tray, a pre-tightening nut for jacking the spring tray to pre-tighten the spring is connected to the screw rod, a locking nut for preventing the pre-tightening nut from loosening is also connected to the screw rod, a separation sleeve between the locking nut and the pre-tightening nut is arranged on the screw rod, the thickness ofthe sleeve wall of the separation sleeve is defined as a, the thickness of the position, at the thickest position of the hole wall of the threaded hole of the locking nut, is defined as b, the thickness of the position, at the thickest position of the hole wall of the threaded hole of the pre-tightening nut, is defined as c, and a is smaller than any one of b and c. Through arrangement of the separation sleeve, the pre-tightening nut is prevented from rotating with the locking nut being screwed to facilitate screw of the locking nut so as to conveniently regulate the pre-compression amount ofthe spring, and the problems are solved that the pre-compression amount of the spring is difficult to adjust due to the fact that the pre-tightening nut rotates with the locking nut when the lockingnut is screwed in the prior art.

Description

technical field [0001] The invention relates to a spring operating mechanism. Background technique [0002] In high-voltage electrical switch products (GIS, open circuit breakers, etc.), all driving mechanisms need to be characterized according to the performance parameters of the circuit breaker. For a mature spring operating mechanism, the main means of performance adjustment is to adjust the opening and closing energy, matching the opening and closing energy, and at the same time meeting the requirements of the circuit breaker for speed, time and other performance parameters. . [0003] The Chinese invention patent application with application publication number CN104465240A and application publication date of 2015.03.25 discloses a connection mechanism for opening and closing springs and its adjustment tooling. A connection mechanism for opening and closing springs includes a spring barrel and a spring. One end of the spring is fixed in the spring barrel, and the other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10H01H71/74
CPCH01H71/10H01H71/74
Inventor 宋广民刘宇郭良超雷琴代忠斌朱苛娄李美荣惠勇锋刘煜李海文
Owner PINGGAO GRP
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