CN-224226442-U - Intrinsically safe cradle lap joint device

Abstract

The utility model discloses an intrinsically safe cradle lapping device which comprises a lapping arm assembly and a driving assembly, wherein the lapping arm assembly comprises two lapping arms and a driving sleeve, the two lapping arms are symmetrically arranged left and right, the driving sleeve is arranged between the lapping arms, the lapping arms are arranged on a cradle frame through a hinge shaft seat, the driving assembly is in transmission connection with the driving sleeve, the lapping arms comprise lapping arm bodies and driven shaft sleeves fixedly arranged at the rear parts of the inner sides of the lapping arm bodies, arc-shaped flanges I are arranged at the inner side ends of the driven shaft sleeves, the arc-shaped flanges I comprise a jaw-type structure I, the driving sleeve comprises a driving shaft sleeve coaxially arranged with the driven shaft sleeves, the left end and the right end of the driving shaft sleeve are respectively provided with an arc-shaped flange II, the arc-shaped flanges II comprise a jaw-type structure II, and the central angle of the arc-shaped flanges I is smaller than that of the arc-shaped flanges II, so that the arc-shaped flanges I and the arc-shaped flanges II form a jaw-type clamping fit mechanism. The utility model can realize that the mine vertical shaft lifting system is not damaged under any working condition.

Inventors

• JIA FUYIN

Assignees

• 徐州市三森威尔矿山科技有限公司

Dates

Publication Date

20260512

Application Date

20250603

Claims (4)

1. 1. An intrinsically safe cradle lapping device comprises a lapping arm assembly (1) and a driving assembly (3), wherein the lapping arm assembly (1) comprises two lapping arms (1-1) which are symmetrically arranged left and right and a driving sleeve (1-4) which is arranged between the two lapping arms (1-1), the lapping arms (1-1) are arranged on a cradle frame (2) through a hinge shaft seat (1-3), the driving assembly (3) is in transmission connection with the driving sleeve (1-4), The lapping arm (1-1) comprises a lapping arm body (1-1-2) and a driven shaft sleeve (1-1-1) fixedly arranged at the rear part of the inner side surface of the lapping arm body (1-1-2), the lapping claw (1-2) is hinged at the front end of the lapping arm (1-1) through a lapping claw pin shaft (1-5), the lapping claw (1-2) extending forwards is positioned on the lapping arm body (1-1-2) through a safety pin (1-6), the driven shaft sleeve (1-1) is axially arranged in the left-right direction, the driving sleeve (1-4) comprises a driving shaft sleeve (1-4-2) coaxially arranged with the driven shaft sleeve (1-1-1), the inner side ends of the driven shaft sleeve (1-1-4-2) are in butt joint connection through a jaw type clamping matching mechanism, the jaw type clamping matching mechanism has an idle stroke angle, the driving shaft sleeve (1-4-2) is in rolling fit with a supporting shaft (1-7), and the two ends of the supporting shaft sleeve (1-7) penetrate through the crank shaft sleeve (1-2) and pass through the crank shaft seat (1-2) respectively.
2. 2. The intrinsically safe cradle landing gear according to claim 1, wherein an arc-shaped flange I is provided at the inner end of the driven bushing (1-1-1), and the arc-shaped flange I includes a jaw structure I, the left and right ends of the driving bushing (1-4-2) are provided with arc-shaped flanges II, and the arc-shaped flanges II include a jaw structure II, the central angle of the arc-shaped flange I is smaller than the central angle of the arc-shaped flange II to form a idle stroke angle, and the arc-shaped flange I and the arc-shaped flange II are lapped to form a jaw-type engagement mechanism.
3. 3. The intrinsically safe cradle splicing device according to claim 1 or 2, wherein the driving shaft sleeve (1-4-2) is fixedly provided with a swinging rod (1-4-1), the swinging rod (1-4-1) extends out along the radial direction of the driving shaft sleeve (1-4-2), and the driving assembly (3) comprises a telescopic driving part, the base body end of the telescopic driving part is hinged on the cradle frame (2), and the telescopic end of the telescopic driving part is hinged with the swinging rod (1-4-1).
4. 4. An intrinsically-safe cradle landing assembly according to claim 3, wherein the telescopic drive member is of hydraulic cylinder construction.

Description

Intrinsically safe cradle lap joint device Technical Field The utility model relates to a cradle lap joint device, in particular to an intrinsically safe cradle lap joint device suitable for a mine vertical shaft lifting system, and belongs to the technical field of mine vertical shaft lifting. Background The cradle is a foldable cage bearing device which can be used in a mine wellhead, a shaft bottom roadway and a shaft middle section roadway in a mine vertical shaft lifting system, is a movable platform for connecting a car yard plane with a tank inner plane and ensuring personnel vehicles to pass, and is widely applied to the mine vertical shaft lifting system because a lapping mechanism of the cradle falls down and connects the wellhead (or roadway) with the cage when the cage arrives, and the cradle is folded along a track to enter and exit the cage. The operating condition of the cradle and the elevator have strict locking relation, when the elevator runs, the cradle cannot act, and when the cradle is in an extending state, the elevator cannot run. The existing locking relation between the cradle and the elevator is usually realized by means of a sensor and a control system, once the control system fails and the locking relation is disordered, the condition that the cradle stretches out to enable the elevator to operate can possibly happen, and the pier tank accident is extremely easy to happen in the condition, so that serious damage and even casualties are caused to a mine vertical shaft lifting system. Disclosure of Invention Aiming at the problems in the prior art, the utility model provides an intrinsically safe cradle lap joint device which can ensure that a mine vertical lifting system is not damaged under any working condition. In order to achieve the aim, the intrinsically safe cradle lapping device comprises a lapping arm assembly and a driving assembly, wherein the lapping arm assembly comprises two lapping arms which are symmetrically arranged left and right and a driving sleeve which is arranged between the two lapping arms, and the lapping arms are arranged on a cradle frame through a hinge shaft seat; The lapping arm comprises a lapping arm body and a driven shaft sleeve fixedly arranged at the rear part of the inner side surface of the lapping arm body, wherein the axial direction of the driven shaft sleeve is arranged along the left-right direction, an arc-shaped flange I is arranged at the inner side end of the driven shaft sleeve and comprises a jaw structure I, a lapping claw is hinged at the front end of the lapping arm through a lapping claw pin shaft and is arranged on the lapping arm body in a stretching mode through a safety pin, a driving sleeve comprises a driving shaft sleeve coaxially arranged with the driven shaft sleeve, arc-shaped flanges II are respectively arranged at the left end and the right end of the driving shaft sleeve and comprise a jaw structure II, the central angle of the arc-shaped flange I is smaller than that of the arc-shaped flange II, the arc-shaped flange I and the arc-shaped flange II are lapped to form a jaw clamping mechanism, a supporting shaft is in rolling fit in the driving shaft sleeve and penetrates through the lapping arm body and is arranged on a cradle frame through a hinging shaft seat. As a further improvement scheme of the utility model, the driving shaft sleeve is fixedly provided with the swing rod, the swing rod extends out along the radial direction of the driving shaft sleeve, the driving assembly comprises a telescopic driving component, the base body end of the telescopic driving component is hinged on the cradle frame, and the telescopic end of the telescopic driving component is hinged with the swing rod. As a preferable mode of the present utility model, the telescopic driving means is a hydraulic cylinder structure. Compared with the prior art, the intrinsically safe cradle lapping device has the advantages that the lapping claw extending forwards is positioned on the lapping arm body through the safety pin penetrating through the shearing pin hole, and the center angle of the arc flange I is smaller than that of the arc flange II, and the arc flange I and the arc flange II are lapped to form the jaw clamping matching mechanism, so that when a control system is in fault and a locking relation is disordered, under the condition that the lapping arm swings to be in a horizontal lapping state, if a cage or other external force impacts the lapping claw from top to bottom, the safety pin can be sheared and broken under the action of the external force, the lapping claw can be folded downwards along the central axis of the pin shaft of the lapping claw at the moment, further the downward movement of the cage is not influenced, the damage to a mine vertical lifting system is not caused, and if the cage or other external force impacts the lapping claw from bottom to top, the lapping arm can swing upwards in the range of an idle stro