Hydraulic rail bender
The utility model is a kind of rail bender tool that is used for the railroad track operation.
Before the utility model was made, a kind of screw mandrel jim crow was adopted in curved rail operation.This jim crow is by the jim crow body, gib and screw mandrel charger are formed, jim crow body two ends are installed gib and screw mandrel charger respectively, jim crow body middle part is a crotch, in order to hook rail head, gib is used for jim crow is fixed on rail during operation, and charger is made up of nut, screw mandrel and top, rotary screw rod just can promote the top, rail is loaded implement curved rail operation.The operation principle of this jim crow is to have utilized movable top, 3 levers that constituted of crotch and gib.Use screw mandrel formula jim crow and can implement curved rail operation, but screw mandrel formula jim crow volume is big, from great, action required intensity is big, and the time is long, thereby operation inconvenience, inefficiency.
The purpose of this utility model provides a kind of compact conformation, operates light hydraulic pressure jim crow.
The jim crow that the utility model proposes is by the jim crow body, and eccentric clamping device and charger are formed.Jim crow body middle part is a crotch, and two ends are setting-up eccentricity clamping device and charger respectively, and the distance between charger and the crotch is greater than the distance between eccentric clamping device and the crotch, and eccentric clamping device is by handwheel, and rotating shaft and eccentric wheel are formed.The charger that is characterised in that of the present utility model adopts hydraulic system, and this system is formed by pressing hand, fuel tank, plunger displacement pump core, plunges pump body, bonnet, oil cylinder, protecgulum, piston, top, back-moving spring, inlet valve, delivery valve and fuel outlet valve; Protecgulum and bonnet are fastening with oil cylinder respectively, and the front end of oil cylinder inner carrier passes protecgulum fixedlys connected with the top, between the end of piston and the protecgulum back-moving spring is housed, and sealing ring is housed respectively between piston and oil cylinder and the protecgulum; One side and the oil cylinder of bonnet are fastening, opposite side and fuel tank are fastening, the plunges pump body that the plunger displacement pump core is housed is fastened on the bonnet middle part, between the pump housing and the pump core sealing ring is housed, the pump housing is stretched out in the upper end of pump core, and be connected with the hand of pressing that is installed on the bonnet upper end with pin, action bars can insert presses the hand inner chamber; Bonnet inside is provided with three passages, one end of right passage communicates with fuel tank and is provided with oil filter, the other end communicates with plunges pump body and is provided with inlet valve, one end of left side passage communicates with oil cylinder and is provided with delivery valve, the other end communicates with plunges pump body, central passage connects fuel tank and oil cylinder, and the centre is provided with fuel outlet valve.
Adopt above-mentioned hydraulic pressure jim crow that rail is carried out bending, can be earlier the crotch of jim crow be hooked rail head, and rotate handwheel, drive eccentric wheel jim crow is clamped on the rail.Then tighten fuel outlet valve, and action bars inserted press the hand inner chamber, can carry out pump oil and load, when on carry when pressing hand-motion plunger displacement pump core and moving upward, the oil in the fuel tank is through oil filter, right passage and inlet valve in the bonnet enter in the plunger displacement pump, when pressing down when pressing hand-motion plunger displacement pump core and moving downward, pressure oil is opened delivery valve, and the left passage in bonnet enters oil cylinder, the motion of promotion piston, piston promote the top again rail are carried out bending.Behind the end-of-job, unclamp fuel outlet valve, the in-oil cylinder pressure oil just passage in bonnet returns fuel tank, and back-moving spring is had an effect simultaneously, makes piston reset.The employing hydraulic loaded is easy to operate, can alleviate operator's labour intensity, and increase work efficiency.
Following concrete enforcement to this hydraulic pressure jim crow is further described with reference to accompanying drawing, and wherein Fig. 1 is the structure chart of this jim crow, and Fig. 2, Fig. 3 and Fig. 4 are respectively A-A, B-B and the C-C cutaway view of jim crow.This jim crow is that eccentric clamping device and charger are formed by jim crow body (1).Jim crow body (1) middle part is a crotch, two ends are setting-up eccentricity clamping device and charger respectively, distance between charger and the crotch greater than the distance between eccentric clamping device and the crotch (referring to Fig. 1) eccentric clamping device by handwheel (4), rotating shaft (2) and eccentric wheel (3) are formed (referring to Fig. 3), rotating shaft (2) is with in the U-lag that is fixed in jim crow body (1) one end movingly, handwheel (4) is installed in rotating shaft (2) upper end, setting-up eccentricity wheel (3) in the U-lag, eccentric wheel (3) is used key (6 respectively with handwheel (4), 7) and nut (5) be connected with rotating shaft (2).The charger that is positioned at jim crow body (1) other end adopts hydraulic system (referring to Fig. 2), and this system is formed by pressing hand (18), fuel tank (19), plunger displacement pump core (16), plunges pump body (17), bonnet (15), oil cylinder (13), protecgulum (10), piston (12), top (8), back-moving spring (11), inlet valve (22), delivery valve (23) and fuel outlet valve (26).Protecgulum (10) is fastening with oil cylinder (13) respectively with bonnet (15), the front end of oil cylinder (13) inner carrier (12) passes protecgulum (10) fixedlys connected with top (8), between the end of piston (12) and the protecgulum (10) back-moving spring (11) is housed, sealing ring (14,9) is housed respectively between piston (12) and oil cylinder (13) and the protecgulum (10).One side of bonnet (15) and oil cylinder (13) are fastening, opposite side and fuel tank (19) are fastening, plunges pump body (17) is equipped with at bonnet (15) middle part, plunger displacement pump core (16) is positioned at plunges pump body (17), between the pump housing (17) and the pump core (16) sealing ring (21) is housed, the pump housing (17) is stretched out in the upper end of pump core (16), and is connected with the hand (18) of pressing that is installed on bonnet (15) upper end with pin (25), and action bars (not drawing among the figure) can insert presses hand (18) inner chamber.Bonnet (15) inside is provided with three passages, one end of right passage communicates with fuel tank (19) and is provided with oil filter (20), the other end communicates with plunges pump body (17), and be provided with inlet valve (22), one end of left side passage communicates with oil cylinder (13) and is provided with delivery valve (23), and the other end communicates with plunges pump body (17); Central passage connects oil cylinder (13) and fuel tank (19), and the centre is provided with fuel outlet valve (26) (referring to Fig. 4), and bonnet (15) is provided with sealing ring (24) with oil cylinder (13) junction.
