CN2045680U

CN2045680U - Shock locking and unlocking nut device

Info

Publication number: CN2045680U
Application number: CN 89203466
Authority: CN
Inventors: 许占海; 邬绪全; 林志兴
Original assignee: CHINA TDJ SYSTEM RESEARCH CENTRE
Current assignee: CHINA TDJ SYSTEM RESEARCH CENTRE
Priority date: 1989-03-30
Filing date: 1989-03-30
Publication date: 1989-10-11

Abstract

The utility model discloses a shock locking and unlocking nut device, comprising a speed reduction reversing mechanism, a lift mechanism, a vehicle frame, a spring, an impact rammer, an impact head, a spanner and a motor. The utility model is suitable for the railway working department to lock and unlock the nut of the fish bolt of the railway track. The utility model is in particular suitable for the working department in which the circuitry first-aid repair is needed and for the marshalling field in which a retarder is adopted, so the locking functions of the nuts of various rail types can be realized.

Description

Shock locking and unlocking nut device

The utility model relates to a kind of improvement of portable power tools of railway special use.

At present, railway department is used to lock the instrument that unclamps nut has: Chinese patent: adjustable torque value spanner.Number of patent application: 88204311.0.The torsion of this adjustable torque value spanner is less, can not adapt to the requirement that nut was locked and unclamped to repairing during circuit fast, and is especially when nut and bolt are fastening because of getting rusty, more powerless.

The purpose of this utility model provides a kind of device that can lock or unclamp nut fast.When this device is particularly suitable for railway department repairing circuit, be used for locking fast or unclamp rust dead on bolt nut and adopt the nut of the different rail types in the marshalling yard on the top of slowing down.

The utility model has adopted light-duty aluminum hull motor, aluminum hull block and gear drive.Frame and vehicle frame all can be taken apart.Vehicle frame folding gets up, and can make packing case and use.Dismounting and assembling are all very convenient.

The utility model is made up of deceleration changement, elevating mechanism, combined folding vehicle frame and handle.Under driven by motor, the impact number of times of jump bit is reduced greatly by a series of bevel gears in the deceleration changement.

Below in conjunction with accompanying drawing the utility model is described in detail as follows:

Fig. 1 is impact type locking and the schematic diagram that unclamps nut apparatus;

Fig. 2 is impact type locking and the structure chart that unclamps nut apparatus;

Fig. 3 is impact type locking and the combined folding vehicle frame that unclamps nut apparatus;

Fig. 4 is impact type locking and the elevating mechanism that unclamps nut apparatus.

Deceleration changement in the utility model as shown in Figure 2, under the drive of motor 1, by generator shaft gear 4, driving driven gear 5, pinion 6 and gear wheel 7 successively rotates, the major axis 8 that gear wheel 7 drives in the cover 9 again rotates, major axis 8 drives bevel gear 10 and rotates, the driven wheel of differential 11 that bevel gear 10 drives on the minor axis 34 again rotates, driven wheel of differential 11 drives minor axis 34 and rotates, give 14 1 impulsive forces of spring in the jump bit 15 simultaneously, the effect of spring 14 is to reduce impulsive force.Minor axis 34 drives and impacts 16 and rotate, and impacts 16 and drives square hole bevel gears 19 and rotate, and square hole bevel gear 19 drives square toes bevel gear 20 again and rotates, and the square toes bevel gear drives spanner 21 lockings at last or unclamps nut.Handle 13 is contained on the pinion stand 12.

Combined folding vehicle frame in the utility model as shown in Figure 3, four rolling 22 is contained in respectively on two wheel carriers 23.With bolt wheel carrier 23 is fixed on two end plates 24 of vehicle frame.Wheel carrier 23 can change direction according to the needs of wheel rim.Two end plates 24 of vehicle frame all connect with case underframe 29 with hinge 32, so that folding back is used as packing case.During work, case lid 33 is unloaded down, car side plate 30 maintains the original state, and vehicle frame is fixing with bolt 31.

Elevating mechanism in the utility model is as shown in Figure 4:

During work, at first be stuck on the cover 9 with pulling frame clamp 25.Then, will pull frame clamp 25 with the threadless bolt 35 in end is fixed together with loose joint screw mandrel 27.Pulling frame clamp 25 can not have the part of screw thread freely to rotate at bolt 35.Loose joint screw mandrel 27 is contained in the screw mandrel 26.Clockwise direction rotary screw rod 26, loose joint screw mandrel 27 rises, counter clockwise direction

rotary screw rod

26,27 declines of loose joint screw mandrel.Elevating mechanism is fixed on the trundle pedestal 28.Trundle pedestal 28 can move do short distance along the groove on the end plate vehicle frame 24, and spanner 21 is aimed at the nut that is locked or unclamp easily.

Level of the present utility model or vertical operation realize as follows:

When needing vertical operation, at first unload bevel gear box 18, load onto spanner 21 on the square toes of the impact in cover 17 16 then, can realize vertically locking or unclamping the function of nut.

When needing horizontal operation, with bolt, nut bevel gear box 18 and cover 17 are coupled together, impact 16 square toes and insert in the square hole of square hole bevel gear 19, square hole bevel gear 19 drives square toes bevel gears 20 and rotates, and at last spanner 21 is contained on the square toes of square toes bevel gear 20.Can the realization level locking or the function of unclamping nut.

Embodiment:

Generator shaft gear 4 in the utility model and the gearratio between the driven gear 5: 13:43; Gearratio between pinion 6 and the gear wheel 7 is 14:33; Gearratio between bevel gear 10 and the driven wheel of differential 11 is 15:32; Gearratio between square hole bevel gear 19 and the square toes bevel gear 20 is 21:22.The diameter of major axis 8 is φ 30mm, long 498mm.The diameter of minor axis 34 is φ 20mm, long 110mm.

The utility model compared with prior art has the following advantages:

1, torsion is big, can unclamp and the dead nut together of bolt rust;

2, laborsaving, efficient is high. Locking or unclamp nut when being particularly suitable for rushing to repair rail track or decelerating being installed in railway classification yard.

Claims

1, a kind of impact type is locked and is unclamped nut apparatus, and it is characterized in that: this device is made up of deceleration changement, elevating mechanism, vehicle frame, spring, jump bit, impact head, spanner and motor; The deceleration changement is made up of generator shaft gear, driven gear, pinion, gear wheel, cover, major axis, bevel gear, minor axis, driven wheel of differential, spring, square hole bevel gear, square toes bevel gear; Elevating mechanism is formed by pulling frame clamp, screw mandrel, loose joint screw mandrel and trundle pedestal; Vehicle frame is made up of roller, wheel carrier, end plate, hinge, case underframe and case lid.

2, impact type according to claim 1 is locked and is unclamped nut apparatus, and it is characterized in that: the right-hand member of major axis is equipped with gear wheel, and left end is equipped with bevel gear, and major axis is contained in the cover;

3, impact type according to claim 1 is locked and is unclamped nut apparatus, and it is characterized in that: driven wheel of differential is equipped with in the upper end of minor axis, and the square hole bevel gear is equipped with in the lower end, and the middle part is with spring;

4, impact type according to claim 1 is locked and is unclamped nut apparatus, and it is characterized in that: the square hole bevel gear has put in bevel gear box top, with the square toes bevel gear engagement that is contained in the bevel gear box side.