CN2677431Y

CN2677431Y - Track hook pliers of small hydraulic tamping machine

Info

Publication number: CN2677431Y
Application number: CN 200420032781
Authority: CN
Inventors: 樊尚君; 何发明
Original assignee: SHIFANG RAILHELPER MACHINERY CO Ltd
Current assignee: SHIFANG RAILHELPER MACHINERY CO Ltd
Priority date: 2004-02-10
Filing date: 2004-02-10
Publication date: 2005-02-09
Anticipated expiration: 2014-02-10

Abstract

The utility model discloses a track hook pliers of small hydraulic tamping machine used for the track maintenance of the railway line. The track hook pliers of small hydraulic tamping machine is characterized in that the pliers jaw is composed of two pairs of convex hooks which are up-and-down arranged, and the two pairs of hook nips are opposed to each other; the hook clamp working surfaces of the upper convex hooks are adapted with the jaw camber surface of the railhead of the steel rail, and the hook clamp working surfaces of the lower convex hooks are adapted with the flange camber surface of the fish connecting plate of the joint of the steel rail; the upper convex hooks and the lower convex hooks are staircase structured, and the distance of the hook nips of the lower convex hooks is longer than the distance of the hook nips of the upper convex hooks; when the fish connecting plate is hooked and clamped by the lower convex hooks, the distance of the hook nips of the upper convex hooks is longer than the width of the railhead of the steel rail, which is suitable for the work of any section of railway that the steel rails have junctions, the steel rails without junctions, or the edge is wore. The track hook pliers of small hydraulic tamping machine has the advantages that the clamping fashion of the steel rail is changed to the hooking fashion, the steel rail can be hooked stably and reliably without slip and looseness, the derail of the tamping machine is prevented, the work safety is guaranteed, and the work efficiency is improved; the track hook pliers of small hydraulic tamping machine also has the advantages of simple structure, low cost, long service life and low use cost.

Description

A kind of light hydraulic tamping machine track hook pliers

Technical field

The utility model relates to the light hydraulic tamping machine that the railway track permanent way maintenance uses, relate in particular to the track hook pliers of light hydraulic tamping machine, be used for light hydraulic tamping machine in the tamping operation process, tamping pickaxe catches on rail when inserting railway roadbed, to overcome the upward reaction force of ballast aggregate to tamping tool.

Background technology

The light hydraulic tamping machine that interval railway track permanent way maintenance tamping operation uses, its rail tongsrail clamp clamping rail are by the clamping frictional force of jaw to the rail head both sides, and for increasing frictional force, jaw is designed to the grinding tooth structure, utilizes jaw grinding tooth clamping rail.Because two sides of rail head are curved surfaces, the jaw grinding tooth has only the 1-2 tooth to contact with rail usually, the frictional force that produces is limited, and particularly when rail head had the vertical side edge wearing and tearing, the contact surface of jaw and rail was littler, be difficult to clip rail, skid easily, tamping tool often slides down, and can not carry out operation smoothly, have a strong impact on the efficient of tamping operation, also dangerous; And grinding tooth is easy to damage, and jaw iron is changed frequent (just because of this, jaw iron and caliper are separation members, so that change), and the cost of tamping operation is higher.Therefore, someone has invented a kind of " compound folder rail level rail tongsrail clamp " (Chinese patent, the patent No. 95234683.4), its jaw iron has upper and lower two folder rail levels, under press from both sides rail level be higher than the folder rail level, form a pair of hook arrangement, jaw colludes the lower jaw part (see figure 1) of clamping rail head, thereby reliable and stable, can not skid gets loose; But also there is shortcoming: when the operation of rail joint place, because jointbar stops, can only use two side (see figure 2)s of the following folder rail level clamping rail head of jaw iron, the method of clamping of this and old-fashioned rail tongsrail clamp is identical, still skid easily, grinding tooth also damages easily, still must change jaw iron.

The utility model content

The purpose of this utility model, it is the shortcoming that overcomes above-mentioned existing rail tongsrail clamp, provide a kind of at any position of rail track tamping operation, can both stablize, reliably collude the light hydraulic tamping machine track hook pliers of holding rail, the key technology measure is to change the method for clamping to rail into the mode of holding of colluding.Following technical solution can realize this purpose:

A kind of light hydraulic tamping machine track hook pliers comprises the caliper that two symmetrical configuration are articulated as one, and it is characterized in that: the jaw shape of described caliper is upper and lower layout, collude point protruding the colluding of two couples in opposite directions; Upper convex hook to collude folder work plane and rail head of rail lower jaw part curved surface suitable, the following protruding flange curved surface that colludes the jointbar that presss from both sides work plane and rail joint place that colludes is suitable; Upper and lower protruding colluding is hierarchic structure, following protruding collude to collude point distance bigger than upper convex hook, following protruding when colluding the folder jointbar, upper convex hook collude the width of point distance greater than rail head of rail.

The utility model has the advantages that:

1. because track hook pliers is provided with two pairs of protruding colluding, when the operation of rail joint place, also can reliablely and stablely colludes and clamp rail, can not skid gets loose, and has thoroughly stopped tamping tool and has slided down, and has guaranteed job safety, has improved operating efficiency.

2. owing to take to collude the folder mode, the work plane of track hook pliers is not easy to wear, and the jaw iron of separation need not be set, track hook pliers simple in structure, and cost is low, and the life-span is long, and use cost is low.

Description of drawings

Fig. 1 is structure and a kind of working state figure of compound folder rail level rail tongsrail clamp.

Fig. 2 is the another kind of working state figure of compound folder rail level rail tongsrail clamp.

Fig. 3 is a structure chart of the present utility model.

Fig. 4 is a kind of working state figure of the present utility model.

Fig. 5 is an another kind of working state figure of the present utility model.

The specific embodiment

Below describe the utility model in detail.

Referring to Fig. 3 to Fig. 5: this light hydraulic tamping machine track hook pliers, comprise caliper 3 that two symmetrical configuration are articulated as one, adjust plate 1, carry folder 2, adjustment plate 1 links to each other with tamping tool, and the pincers handle of its adjustment hole and caliper 3 is hinged; It is coaxial hinged with caliper 3 to carry folder 2.

Different with existing rail tongsrail clamp, the jaw shape of the caliper 3 of this track hook pliers is upper and lower layout, collude point protruding the colluding of two couples in opposite directions; Upper convex hook 4 to collude folder work plane and rail 6 rail head lower jaw part curved surfaces suitable, following protruding 5 the flange curved surface that colludes the jointbar 7 that presss from both sides work plane and rail joint place of colluding is suitable; Upper and lowerly protrudingly collude 4,5 and be hierarchic structure, promptly protruding down collude 5 to collude the point distance bigger than upper convex hook 4, and collude 5 when colluding folder jointbar 7 protruding down, upper convex hook 4 collude the width of point distance greater than rail 6 rail heads.Like this, just will collude the folder mode to the method for clamping of rail instead.

The using method of this light hydraulic tamping machine track hook pliers is as follows:

Referring to Fig. 4:, use upper convex hook 4 to collude and clamps rail 6 rail head lower jaw parts when tamping tool during in the operation of rail non junction section.

Referring to Fig. 5:, use and protrudingly down collude 5 and collude and clamp jointbar 7 flanges when tamping tool during in the operation of rail joint place; At this moment, colluding of upper convex hook 4 is sharp apart from tall and big in the width of rail 6 rail heads, can not contact rail.

Claims

1. a light hydraulic tamping machine track hook pliers comprises the caliper that two symmetrical configuration are articulated as one, and it is characterized in that: the jaw shape of described caliper is upper and lower layout, collude point protruding the colluding of two couples in opposite directions; Upper convex hook to collude folder work plane and rail head of rail lower jaw part curved surface suitable, the following protruding flange curved surface that colludes the jointbar that presss from both sides work plane and rail joint place that colludes is suitable; Upper and lower protruding colluding is hierarchic structure, following protruding collude to collude point distance bigger than upper convex hook, following protruding when colluding the folder jointbar, upper convex hook collude the width of point distance greater than rail head of rail.