CN203007759U

CN203007759U - Unscrewing device for scrapped nylon sleeve in concrete sleeper

Info

Publication number: CN203007759U
Application number: CN 201220621598
Authority: CN
Inventors: 杜新宇; 毛翠丽; 王林鸿; 魏飞
Original assignee: Nanyang Institute of Technology
Current assignee: Nanyang Institute of Technology
Priority date: 2012-11-22
Filing date: 2012-11-22
Publication date: 2013-06-19
Anticipated expiration: 2022-11-22

Abstract

The utility model belongs to the technical field of railway traffic and provides an ideal unscrewing device for rapidly taking a scrapped nylon sleeve out of a concrete sleeper in a cold manner. Due to arrangement of a synchronous ascending transmission mechanism, the output end of a cycloidal pin wheel speed reducer can drive a screwing head at the lower end of a spindle to rotate and move up and down by mutual meshing of a gear and a rack. When the device is in use, a drilling processing method is selected and used to rapidly drill a hole slot on the nylon sleeve; the nylon sleeve is driven to reversely rotate by utilizing torque acting on a handle part of the screwing head and an external arc screw thread of the nylon sleeve is ascended along a cement screw thread in a hole of the concrete sleeper so as to take out the nylon sleeve. Compared with the prior art, the device has the obvious advantages of no requirement for heating, short take-out time, high efficiency, low labor intensity and the like.

Description

Scrap the nylon sleeve screwing-out device in the concrete pillow

Technical field

The utility model belongs to the railway traffic technical field, is specifically related to a kind of cold screwing-out device of scrapping nylon sleeve in the concrete pillow of getting fast.

Background technology

Concrete pillow nylon sleeve is cast in the concrete pillow, and in nylon jacket, bolt is pressed on rail on the concrete pillow pressing plate by being fastened on.Near the offset distance backing plate position of acclerating road switch and check rail flat segments part switch tie nylon sleeve pipe, due to bolt corrosion, produce and expand, add and be subjected to External Force Acting or straight, curved strand of rail of offset distance backing plate position connection, in case free boatswain chair is arranged, when rolled by train, the sleeper bolt at non-stress straight (song) strand rail place is pulled out and makes nylon sleeve to lose efficacy.The nylon sleeve that lost efficacy need to be taken out the new nylon jacket of packing in the position of original nylon sleeve from the concrete pillow.

Prior art adopts the baked wheaten cake method, is the characteristics of utilizing nylon to burn, with combustible material, nylon sleeve is ignited, and by burning, the entity of nylon sleeve is eliminated, labor cleaning's rear remaining residue that burns, thus nylon sleeve is taken out from the concrete pillow.Nylon sleeve finishes from the whole burnings of igniting, and approximately needs 30 minutes, two row trains pass through interval time less than 30 minutes, burned flame does not also extinguish, the second train passes through, and the security of operation of train has been caused certain threat; In addition, the high temperature that burning produces easily makes the cement screw thread of nylon sleeve original position concrete pillow endoporus burst apart, and new nylon sleeve is changed without connecting thread, causes sleeve pipe to safeguard unsuccessfully.Another kind is that heat is followed the example of, and heating tube is arranged on homemade the twisting in an endoporus of 8 corner angle of having.First with heating tube energising heating, 8 ribs are twisted head are heated to sufficiently high temperature, then 8 ribs are twisted head press under the nylon sleeve endoporus, allow 8 ribs twist head and burn groove on the inwall of nylon sleeve, heating so on one side, one side under press.Because the nylon sleeve endoporus is less, the volume of heat-generating pipe is limited, and power also is restricted thereupon, and the stubborn head of 8 ribs is axially burnt whole grooves along nylon jacket on inside pipe wall approximately need 40 minutes.Twist after head all enters the nylon sleeve endoporus at 8 ribs, manually be rotated counterclockwise 8 ribs and twist head, the nylon sleeve that heat is soft screws out.In the process of heating, the too high situation that nylon sleeve is ignited of heating-up temperature often appears.In addition heat time heating time long, get the cover efficient not high.Therefore existing removing method exists train operating safety is threatened, and the former concrete of destructible is rested the head on the cement screw thread in the hole, causes sleeve pipe to safeguard unsuccessfully, and maintenance efficiency hangs down the large deficiency of labour intensity.

The utility model content

The purpose of this utility model is that a kind of cold getting in the concrete pillow fast of design scrapped the nylon sleeve screwing-out device, has high pulling torque, function of auto-lift, can finish the work in section off time that two row trains pass through, the taking-up process is not destroyed former concrete and is rested the head on cement screw thread in the hole, and take-off time is short, and efficient is high.

for reaching above-mentioned purpose, the technical scheme that the utility model adopts is: scrap the nylon sleeve screwing-out device by planet-cycloid reducer in this concrete pillow, spindle assemblies, twist head, synchronous rising transmission mechanism and frame consist of, it is characterized in that: described spindle assemblies has axle sleeve, axle sleeve is connected with main shaft by spline, stubborn head is arranged on the lower end of main shaft, the output of planet-cycloid reducer is connected with axle sleeve by gear, the drive main shaft rotates, described synchronous rising transmission mechanism comprises and is positioned at the sleeve that is contained in the main shaft outside by bearing, sleeve can drive main shaft and move up and down in box body hole, the rack and pinion of sleeve outside is meshed, realizing twisting head advances and retreats.

The utility model provides a kind of desirable quick cold getting in the concrete pillow to scrap the nylon sleeve screwing-out device for belonging to the railway traffic technical field.Owing to being provided with synchronous rising transmission and mechanism, the planet-cycloid reducer output can pass through gear, tooth bar intermeshing, and the stubborn head that drives the main shaft lower end rotates, and moves up and down.This device is selected drilling machining method in use, and with frame, base is stuck on the concrete pillow, quick drill tap hole trough on nylon sleeve.Twist according to the special use of the physical dimension setting of nylon sleeve that in head and nylon sleeve, sky and hole slot match, utilization acts on the moment of torsion of twisting a shank, the reverse rotation of drive nylon sleeve, when the moment of torsion of twisting a shank is rested the head on the adhesion of cement greater than nylon sleeve with concrete, nylon sleeve outer arcuate screw thread is rested the head on cement screw thread rising in the hole along concrete, and nylon jacket is taken out.Compared with prior art, have and do not heat, take-off time is short, and efficient is high, the low remarkable advantage that waits of labour intensity.

Description of drawings

Reach by reference to the accompanying drawings example and further illustrate specific structural features of the present utility model.

Fig. 1 is the structural front view of the utility model spindle assemblies I.

Fig. 2 is the principle schematic of synchronous rising transmission mechanism of the present utility model.

The specific embodiment

Referring to Fig. 1, Fig. 2, this cold getting in the concrete pillow fast of the utility model scrapped the nylon sleeve screwing-out device, and by cycloidal reducer J1, spindle assemblies is twisted an II, frame, and synchronous lifting mechanism forms.Spindle assemblies comprises: axle sleeve 1, bearing outside 2, back-up ring 3, rolling bearing 6, thrust bearing 7, gear 8, sleeve 9, casing 10.Axle sleeve 1 by spline be connected with main shaft 5, twist the lower end that an II is arranged on main shaft 5, main shaft 5 two ends are contained on sleeve 9 by bearing 4, the gear of sleeve 9 outsides is meshed with gear 8.Axial support is used thrust bearing 7.Main shaft 5 tops are provided with two radial ball bearings 4, are arranged in bearing outside 2, are provided with back-up ring 3 between two bearings, and bearing outside 2 is threaded connection on casing 10.synchronous lifting mechanism comprises: gear Z2, gear Z3, gear Z4, gear Z5, gear Z8, worm screw Z6, gear Z1 on turbine Z7 planet-cycloid reducer J1 output shaft drives driven gear Z2, the gear Z3 coaxial with gear Z2 passes motion to gear Z4, gear Z4 drives again Z5, worm screw Z6(dextrorotation) coaxial with gear Z5, worm screw Z6 drives worm gear Z7, gear Z8 is coaxial with worm gear Z7, gear Z8 is meshed with tooth bar Z9 on sleeve 9 shown in Figure 15, gear Z8 rotates, the tooth bar Z9 that promotes on sleeve 9 drives main shaft and twists head and realize the rectilinear motion that main shaft is axial.When planet-cycloid reducer reverses, require main shaft will on move.

Claims

1. scrap the nylon sleeve screwing-out device in a concrete pillow, by planet-cycloid reducer, spindle assemblies, twist head, synchronous rising transmission mechanism and frame consist of, it is characterized in that: described spindle assemblies has axle sleeve, axle sleeve is connected with main shaft by spline, stubborn head is arranged on the lower end of main shaft, the output of planet-cycloid reducer is connected with axle sleeve by gear, the drive main shaft rotates, described synchronous rising transmission mechanism comprises and is positioned at the sleeve that is contained in the main shaft outside by bearing, sleeve can drive main shaft and move up and down in box body hole, the rack and pinion of sleeve outside is meshed, realizing twisting head advances and retreats.