CN203519317U - Mining decoupling device for cage anti-falling test - Google Patents

Abstract

The utility model belongs to mining safety test equipment, especially a mining decoupling device for a cage anti-falling test. The upper parts of two parallel side plates (7) are connected with each other through a connecting shaft (8). A lever (10) is clamped through a clamping shaft between the two side plates (7) and at the upper parts of the two side plates (7), and two sides of the left end of the lever (10) are respectively provided with a lever opening (10-1). The clamping shaft (5) at the internal left end of the lever (10) is equipped with the upper arm of a right hook (11). A hinged shaft 2 (9) in the lever (10) is equipped with the upper arm of a left hook (1). A limiting block (3) is fixed at the peripheries of the upper arms of the left and right hooks (1, 11) under the lever (10). Two springs (4) are fixed under the two clamping plates (7) and above the limiting block (3) in a parallel manner. The lower parts of the left and right hooks (1, 11) are semicircular and symmetrical to each other. The device provided by the utility model improves the stress condition of the hinge joint of the lever (10) and the hook arms and the stress conditions of the clamping head of the lever (10), reduces the potential safety hazards, and is safe and reliable.

Description

Mine cage falling prevention test trip mechanism

Technical field

The utility model belongs to mine safety testing equipment, particularly a kind of mine cage falling prevention test trip mechanism.

Background technology

China < < safety regulations in coal mine > > and < < metal and nonmetal mine safety rules > > regulation, the safety catcher of shaft hoisting cage new install or overhaul after the test of must breaking off relations, safety catcher in use, at least carry out a test every year, reliability and sensitivity with check safety catcher break catching apparatus, after qualified, can use, unhook mode mainly contains two kinds of forms at present, the one, comparatively original cuts off the mode of wire rope with gas cutting equipment, this mode wastes time and energy, waste wire rope, and the wire rope cutting off easily launches, be extracted into it staff, there is potential safety hazard, the 2nd, with the unhook test of trip mechanism cage, existing trip mechanism is divided into two kinds, for single hook side turn over detacher and double hook are to grabbing formula detacher, single hook side turn over detacher mainly exists force structure unreasonable, the unhook power that one-sided unhook needs is large, the easy problem such as stuck, double hook adopts double hook to grabbing to grabbing formula detacher, the form of lever fastening, when lever releases, double hook opens, cage falls, at present double hook is limit grabbing the formula detacher situation that hook arm Existential Space is interfered owing to rotated by two hooks, all adopt the form of effort lever, this has just caused in lifting and unhook process, lever and hook arm hinged place and lever dop place are stressed very large, easily damage, and need very large power to go rotating lever to realize opening of double hook.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, easy to use and flexible, safe and reliable mine cage falling prevention test trip mechanism.

The technical scheme that the utility model technical solution problem adopts is: mine cage falling prevention test trip mechanism comprises side plate, nut, lever, limited block, spring, left hook, right hook, be characterized in coupling shaft, connecting above two parallel side plates, outside at biside plate, the two ends of coupling shaft are fixed with nut, with axis, clamp the lever of left end both sides band lever gap above between biside plate, in lever, on the axis of left end, fill the upper arm of right hook, on hinge two in lever, fill the upper arm of left hook, left hook below lever, the peripheral limited block that is fixedly equipped with of upper arm of right hook, at left hook, the hinged place of right hook is contained between biside plate with hinge one, and connect with nut and fix with side plate, below two clamping plate of lever with above limited block between be parallelly fixed with two springs, below left hook and right hook, it is symmetrical semicircular arc.

The beneficial effects of the utility model are: mine cage falling prevention test trip mechanism adopts the double-hook tripper of labour-saving lever form, only need can realize opening of double hook by rotating lever by relatively little power, improve lever and hook arm hinged place and lever dop place stressing conditions, reduce potential safety hazard, safe and reliable.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, with embodiment, illustrate.

Fig. 1 is the structural drawing of mine cage falling prevention test trip mechanism.

In figure, the left hook of 1-; 2-hinge one; 3-limited block; 4-spring; 5-axis; 6-nut; 7-side plate; 8-coupling shaft; 9-hinge two; 10-lever; 10-1-lever gap; The right hook of 11-.

Embodiment

Embodiment, with reference to accompanying drawing 1, mine cage falling prevention test trip mechanism is with coupling shaft 8, to connect above two parallel side plates 7, in the outside of two side plates 7, the two ends of coupling shaft 8 are fixing with nut 6.The lever 10 of transmission is housed above between two side plates 7, in lever 10 left end symmetria bilateralis, establishing lever gap 10-1 is stuck on axis 5, in two clamping plate of lever 10, left end is equipped with the upper arm of right hook 11 with axis 5, in lever 10, the upper arm right side of right hook 11 is equipped with the upper arm of left hook 1 with hinge 29.Limited block 3 is fixedly equipped with in left hook 1 below lever 10 in biside plate 7, the upper arm of right hook 11 periphery, is contained between biside plate 7, and connects with nut 6 fixing with side plate 7 in the hinged place of left hook 1, right hook 11 with hinge 1.Below two clamping plate of lever 10 with above limited block 3 between be parallelly fixed with two springs 4, left hook 1 and right hook 11 be symmetrical semicircular arc below.

The course of work of mine cage falling prevention test trip mechanism is: during work, make lifting hook hook on coupling shaft 8, whole trip mechanism is mentioned, left hook 1 and right hook 11 closures are hooked the coupling arrangement of cage, rotating lever 10, make it block axis 5 to clamp left hook 1 and right hook 11, hoister suspension hook hooks trip mechanism and rises to assigned address and stop, then use the right-hand member of rope pull lever 10, lever 10 rotates and departs from axis 5 around hinge 29, under left hook 1 and right hook 11 are opened under cage Action of Gravity Field, discharge cage and realize unhook.

Claims (1)

1. a mine cage falling prevention test trip mechanism, comprise side plate (7), nut (6), lever (10), limited block (3), spring (4), left hook (1), right hook (11), it is characterized in that connecting at the coupling shaft for top (8) of parallel two side plates (7), outside in biside plate (7), the nut for two ends (6) of coupling shaft (8) is fixing, between biside plate (7), top clamps the lever (10) of left end both sides band lever gap (10-1) with axis (5), in lever (10), on the axis (5) of left end, fill the upper arm of right hook (11), on hinge two (9) in lever (10), fill the upper arm of left hook (1), left hook (1) below lever (10), the peripheral limited block (3) that is fixedly equipped with of upper arm of right hook (11), in left hook (1), the hinged place of right hook (11) is contained between biside plate (7) with hinge one (2), and connect with nut (6) fixing with side plate (7), below two clamping plate of lever (10) with above limited block (3) between parallel two springs (4) that are fixed with, below left hook (1) and right hook (11), it is symmetrical semicircular arc.