Dismounting device for safety pin of main transmission coupling of shearing machine

Abstract

The utility model relates to a dismounting device for a safety pin of a main transmission coupling of a shearing machine, which comprises a hoop, the hoop comprises an upper hoop plate and a lower hoop plate, connecting plates are arranged on two sides of the upper hoop plate and the lower hoop plate, and connecting holes are arranged in the middle of the connecting plates. The upper hoop plate and the lower hoop plate penetrate through the connecting holes in the connecting plates on the two sides of the upper hoop plate and the lower hoop plate through first bolts and are matched with nuts to connect the upper hoop plate and the lower hoop plate together, wing plates are arranged at the top of the upper hoop plate and the top of the lower hoop plate, threaded holes are formed in the wing plates, and second bolts are installed in the threaded holes. The dismounting time of the coupler safety pin can be shortened, and maintenance safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of dismounting devices of shear machine main drive coupling safety pin, belong to safety pin dismounting device technical field. BACKGROUND

[0002] Shear machine driving system is composed of main motor, horizontal speed reducer and shaft, to protect power system and transmission from being damaged by shear load, in addition to current overload protection of motor itself, a safety coupling is provided between motor and speed reducer as effective mechanical protection. The coupling is cut off power transmission by tripping safety pin one by one when torque overload or impact load is too large, to achieve the purpose of protecting transmission system stable and preventing equipment damage.

[0003] Each shear coupling is equipped with multiple safety pins. Under normal circumstances, reset safety pin can be restored by using soft hammer to knock reset pin, but there are also situations where safety pin cannot be reset. The dismounting process of safety pin generally has the following problems, resulting in long dismounting time, low efficiency and safety risks. First, due to small working space in shear coupling area, personnel are limited in position, which is time-consuming and laborious. Second, safety pin is installed in coupling hole slot, without matching removal tool and dismounting process hole, resulting in prolonged maintenance time. Third, due to long-term radial deformation (or because the safety pin piston is broken and stuck in the coupling disc hole), dismounting is very difficult. Only large hammer, pipe wrench, crowbar and various tools can be used to pry the safety pin to separate it from the coupling space. Uneven force during violent removal can damage the safety pin and prevent its reuse, resulting in waste of spare parts. Finally, the energy stored in the spring when tripping may be released during violent removal, causing parts to fly out and injure personnel, posing a safety risk. According to statistics, the dismounting time of a single safety pin is 30 minutes to 4 hours. UTILITY MODEL CONTENTS

[0004] To solve the problems in the prior art, the utility model provides a dismounting device for shear machine main drive coupling safety pin, which can shorten the dismounting time of coupling safety pin and ensure maintenance safety.

[0005] The utility model solves the above technical problems by providing a dismounting device for shear machine main drive coupling safety pin, which includes a clamp. The clamp includes an upper clamp plate and a lower clamp plate. Both sides of the upper clamp plate and the lower clamp plate are provided with connecting plates, and the middle part of the connecting plates is provided with connecting holes. The upper clamp plate and the lower clamp plate are connected together by screw bolts one passing through the connecting holes on the connecting plates on both sides and cooperating with nuts. Wings are provided on the top of the upper clamp plate and the top of the lower clamp plate. Threaded holes are provided on the wings, and screw bolts two are installed in the threaded holes.

[0006] The further defined technical scheme of the utility model is:

[0007] Further, the upper and lower hoop plates and the connecting plates on their two sides are fixed by welding.

[0008] Further, the upper and lower hoop plates and the corresponding wing plates are fixed by welding.

[0009] Further, the first bolt is an M24 bolt, and the second bolt is an M16 bolt.

[0010] Further, the upper and lower hoop plates are semicircular in structure.

[0011] The utility model discloses the beneficial effect: the utility model discloses simple structure, convenient production, and the cost is lower, and the left and right sides of upper and lower hoop plates are provided with the connecting plate, and the upper and lower hoop plates are provided with the wing plate on the upper and lower ends, and form the complete cross type hoop, when disassembling, use cross type hoop to enter safety pin, and use spanner to tighten the first bolt to lock safety pin, then, use ratchet wrench to rotate two second bolts simultaneously and rotate into the thread hole of upper and lower ends wing plate, and the second bolt rotates in the thread hole, until top to the coupling disc surface, transversely use helical hoisting principle, drive the hoop to pull out the hole position safety pin stably, can shorten the disassembling time and guarantee the overhaul safety. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is the plan view of the utility model;

[0015] Figure 4 It is Figure 3 It is the A-A direction section view of the utility model. DETAILED DESCRIPTION

[0016] EMBODIMENT

[0017] The embodiment provides a kind of dismounting device of shearing machine main drive coupling safety pin, structure is as Figures 1-4As shown, including the clamp, the clamp includes the upper hoop plate 1 and the lower hoop plate 2, the upper and lower hoop plate is semicircular structure, the upper hoop plate and the lower hoop plate opening end both sides are provided with the connecting plate 3 welded with it, and the connecting plate middle part is provided with the connecting hole, the upper hoop plate and the lower hoop plate are connected together through the bolt one 5 passing through the connecting hole on the connecting plate on both sides, and cooperate with the nut 4, the upper and lower hoop plate is connected together, the wing plate 7 welded with it is arranged on the upper hoop plate top and the lower hoop plate top, the wing plate is provided with the threaded hole, the threaded hole is installed with the bolt two 6, the bolt one adopts M24 bolt, the bolt two adopts M16 bolt.

[0018] The embodiment has simple structure, convenient manufacturing and low cost, the connecting plate is arranged on the left and right sides of the upper and lower hoop plates, and the wing plate is arranged on the upper and lower ends of the upper and lower hoop plates, so that the complete cross-shaped hoop is formed, when disassembling, the cross-shaped hoop is sleeved on the safety pin, the bolt one is tightened by using the wrench to lock the safety pin, then the two bolts two are rotated by using the ratchet wrench to be screwed into the threaded holes of the upper and lower end wing plates, the bolt two is rotated in the threaded hole until the top of the coupling disc surface, the cross-shaped hoop is driven to pull out the hole position of the safety pin by using the screw lifting principle, the disassembling time is shortened and the maintenance safety is ensured.

[0019] In addition to the above embodiment, the utility model can have other implementation manners, and the technical scheme formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A shear main drive coupling safety pin removal device comprising a clamp, characterised in that, The clamp comprises an upper clamp plate and a lower clamp plate, both sides of the upper clamp plate and the lower clamp plate are provided with connecting plates, and the middle parts of the connecting plates are provided with connecting holes, the upper clamp plate and the lower clamp plate are connected together through a bolt one penetrating the connecting holes on the connecting plates on both sides and cooperating with a nut, wings are arranged on the top of the upper clamp plate and the top of the lower clamp plate, the wings are provided with threaded holes, and bolts two are arranged in the threaded holes.

2. A device for removing a safety pin of a main transmission coupling of a shearing machine according to claim 1, characterized in that The upper and lower clamp plates and the connecting plates on both sides thereof are welded.

3. A device for removing the safety pin of the main transmission coupling of a shearing machine according to claim 1, characterized in that, The upper and lower clamp plates and the corresponding wings are welded.

4. A device for removing the safety pin of the main transmission coupling of a shearing machine according to claim 1, characterized in that, The bolt one is an M24 bolt, and the bolt two is an M16 bolt.

5. A device for removing the safety pin of the main transmission coupling of a shearing machine according to claim 1, characterized in that, The upper and lower clamp plates are semicircular structures.

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