Rail clamp

Abstract

A rail clamp belongs to the field of railway maintenance equipment and comprises clamp bodies, a lifting seat and a counterweight structure, the upper portions of the two clamp bodies are rotatably connected, the lifting seat is arranged on the upper sides of the clamp bodies, a lifting plate is arranged between the clamp bodies and the lifting seat, the lower end of the lifting plate is rotatably connected with the clamp bodies, the upper end of the lifting plate is rotatably connected with the lifting seat, and the counterweight structure is connected with the lifting seat. According to the rail clamping mechanism, the self-gravity is increased, so that the rail clamping tongs of the rail clamping mechanism can reliably clamp the steel rail in the tamping operation process, and the tamping operation is ensured to be smoothly completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway maintenance equipment field, especially a rail clamp. BACKGROUND

[0002] Railway line due to the rolling effect of vehicle operation, the ballast bed will produce deformation subsidence. In order to restore the smoothness of railway line to ensure the safe high-speed operation of train, it is necessary to carry out line tamping operation regularly, therefore, the tamping operation of railway line under the sleeper ballast is an important work of railway line maintenance.

[0003] In the process of tamping operation, an important process is that the rail clamping mechanism clamps the steel rail throughout the whole process to ensure the smooth completion of tamping operation. The existing rail clamping mechanism relies on its own gravity to clamp the steel rail, and in the section of jointed line, due to the existence of steel rail clamping plate at the joint of steel rail, under the condition that the gravity of the rail clamp body is limited, the existing rail clamping mechanism cannot reliably clamp the steel rail at the joint of steel rail. TECHNICAL SOLUTION

[0004] The utility model solves the technical problems: overcome the prior art's insufficient, provide a kind of through the weight rail clamping mechanism self-gravity enhancement rail clamping mechanism rail clamping capacity, realize to the steel rail and at the joint of steel rail can reliably clamp the steel rail of a kind of rail clamp.

[0005] The utility model adopts the technical scheme that a kind of rail clamp includes clamp body, lifting seat and counterweight structure, the upper portion of two clamp bodies is rotatably connected, lifting seat is set at the upper side of clamp body, lifting plate is arranged between clamp body and lifting seat, the lower end of lifting plate is rotatably connected clamp body, the upper end of lifting plate is rotatably connected lifting seat, and counterweight structure is connected with lifting seat.

[0006] Preferably, the clamp body is provided with a first rail clamping protrusion and a second rail clamping protrusion, the second rail clamping protrusion is arranged on the lower side of the first rail clamping protrusion, the first rail clamping protrusion clamps the lower jaw of the head of the steel rail, and the second rail clamping protrusion clamps the structural protrusion on the upper end of the steel rail clamping plate at the joint of the steel rail.

[0007] Preferably, the lifting seat includes a connecting plate, a bottom plate, a chain ring, a chain ring mounting plate and a lifting chain, the bottom plate is arranged on the upper side of the connecting plate, the connecting plate is rotatably connected with the upper end of the lifting plate, the chain ring is mounted on the chain ring mounting plate, the chain ring mounting plate is fixed on the bottom plate, and the lower end of the lifting chain is mounted on the chain ring.

[0008] Preferably, the chain ring is mounted on the chain ring mounting plate by bolts.

[0009] Preferably, the counterweight structure includes counterweight blocks and chain guards, two counterweight blocks are arranged on the bottom plate, and the chain guards are arranged on the two sides of the two counterweight blocks and connected with the counterweight blocks.

[0010] Compared with the prior art, the technical scheme has the beneficial effects that:

[0011] The utility model discloses a kind of rail clamps that realize clamping rail by self weight, it is added to the clamping force of rail in overall structure by gravity, so that rail clamp of clamping rail mechanism can reliably clamp rail in the process of tamping operation, ensure tamping operation to be completed smoothly.Especially when the clamp body clamps rail clamp plate at the joint of jointed line rail, since the structure protrusion size on clamp plate is smaller, clamp body is easy to slip when clamping the structure protrusion under self gravity, the utility model sets counterweight structure on lifting seat, increase the clamping force of clamp body to rail by counterweight structure to clamp body exerting downward gravity, ensure the reliability of clamp clamp rail clamp plate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structural schematic view of the utility model one kind of rail clamp.

[0013] Fig. 2 It is front view of the utility model.

[0014] Fig. 3 It is another structural schematic view of the utility model.

[0015] Fig. 4 It is the structural schematic view of counterweight structure and lifting seat of the utility model.

[0016] Fig. 5 It is the explosion schematic view of counterweight structure and lifting seat of the utility model.

[0017] Fig. 6 It is the schematic view of rail clamp clamping rail clamp plate at the joint of jointed line rail.

[0018] Wherein: 1, clamp body 101, first rail clamping protrusion 102, second rail clamping protrusion 2, lifting plate 3, lifting seat 301, connecting plate 302, bottom plate 303, chain guard plate 304, chain hanging ring 305, chain hanging ring mounting plate 306, lifting chain 307, counterbore 4, connecting pin 5, counterweight block 6, clamp plate. DETAILED DESCRIPTION

[0019] Figs. 1-6 It is the embodiment of the utility model, following combining with attached Figs. 1-6 Further illustrate the utility model.

[0020] Refer to Fig. 1The rail clamp includes a clamp body 1, a lifting plate 2, a lifting seat 3 and a counterweight structure, the upper parts of the two clamp bodies 1 are rotationally connected, the lifting seat 3 is arranged on the upper side of the clamp body 1, the lifting plate 2 is arranged between the clamp body 1 and the lifting seat 3, the lower end of the lifting plate 2 is rotationally connected to the clamp body 1, the upper end of the lifting plate 2 is rotationally connected to the lifting seat 3, and the counterweight structure is connected to the lifting seat 3.

[0021] Referring to Figs. 2-5 The lifting seat 3 includes a connecting plate 301, a bottom plate 302, a chain hanging ring 304 and a chain hanging ring mounting plate 305, the chain hanging ring 304 is a U-shaped bolt, is fixed on the chain hanging ring mounting plate 305 through upper and lower nuts, and constitutes detachable connection, and the bottom plate 302 is provided with a counterbore 307 in which a fixed nut for fixing the chain hanging ring mounting plate 305 can be arranged. The chain hanging ring mounting plate 305 is fixed on the bottom plate 302 through two bolts, the bottom plate 302 is a horizontally arranged rectangular plate, the lower side of the bottom plate 302 is connected to a vertically arranged connecting plate 301, and the connecting plate 301 is also a rectangular plate. The connecting plate 301 is rotationally connected to the upper ends of the two lifting plates 2 through a connecting pin shaft 4, the lower ends of the two lifting plates 2 are rotationally connected to the clamp body 1 through the connecting pin shaft 4, and the clamp body 1, the lifting plate 2 and the connecting pin shaft 3 are all provided with two groups.

[0022] The clamp body 1 is provided with a first rail clamping protrusion 101 and a second rail clamping protrusion 102, the second rail clamping protrusion 102 is arranged on the lower side of the first rail clamping protrusion 101, the first rail clamping protrusion 101 clamps the lower jaw of the head of the steel rail, and the second rail clamping protrusion 102 clamps the structural boss of the steel rail clamp plate.

[0023] The counterweight structure includes a counterweight block 5 and a chain guard plate 303, the counterweight block 5 is arranged on the bottom plate 302, in the embodiment, the counterweight block 5 is in a cylindrical shape, and the chain guard plate 303 is in a rectangular plate shape. The counterweight block 5 is arranged on the two sides of the chain hanging ring 304, and the chain guard plate 303 is arranged on the two sides of the two counterweight blocks 5 and is connected to the counterweight blocks 5.

[0024] The lifting of the rail clamp is realized through a lifting chain 306 in a ring shape, and the chain hanging ring 304 and the chain hanging ring mounting plate 305 are fixed through bolts to facilitate assembly of the lifting chain 306. The chain guard plate 303 and the counterweight block 5 form an upper opening rectangular box groove, which is used for accommodating the lifting chain 306 when descending.

[0025] Working process:

[0026] The application is realized by the self-weight of the whole structure, the rail clamp is installed on the tamping machine base through the connecting pin shaft, the upper end of the pulling chain is installed on the tamping mechanism of the tamping machine which can move up and down, when the tamping machine walks to the designated tamping work position, the lowering action of the tamping mechanism makes the pulling chain lose the pulling force on the clamp, the rail clamp is lowered under the action of the self-weight, the rail clamp realizes the automatic clamping of the rail under the action of the self-weight, in the lowering process, the pulling chain 306 which loses the pulling force is retracted in the rectangular box slot of the upper opening formed by the chain guard plate 303 and the counterweight 5, after the tamping work is completed, the tamping mechanism rises, the pulling chain 306 pulls the rail clamp upward in the rising action of the tamping mechanism, so that the clamp releases the rail. The rail clamp is released and clamped on the rail in the tamping work process through the rising and lowering of the tamping mechanism and the pulling chain 306, the clamping action of the rail clamp is automatically completed by the self-weight of the rail clamp and the counterweight before the tamping mechanism receives the reaction force of the downward insertion into the ballast, the work flow of clamping the rail first and then tamping provides sufficient safety basis and work basis for the tamping work of the tamping mechanism of the tamping machine.

[0027] Referring to Fig. 2 and Fig. 6 The first rail clamping protrusion 101 at the lower end of the clamp body 1 clamps the lower jaw part of the rail, the rail joint of the jointed track is provided with a clamping plate 6, the outer side of the clamping plate is provided with a structural protrusion, and the second rail clamping protrusion 102 at the lower end of the clamp body 1 clamps the structural protrusion of the clamping plate. Since the structural protrusion of the clamping plate 6 is small in size, the clamp body 1 is prone to slipping when clamping the protrusion due to the limitation of the self-weight of the clamp body 1, the counterweight 5 is arranged on the base plate 302, the self-weight of the counterweight 5 and the pulling seat 3 is applied to the clamp body 1 through the pulling plate 2, so that the clamping force of the clamp body 1 on the structural protrusion of the clamping plate is increased, the slipping of the clamp body 1 is avoided, and the reliability of the clamping action is ensured.

[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification made on the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A rail clamp characterized by: The utility model relates to a rail jointing clamp, including the body of tongs (1), pull -up seat (3) and counterweight structure, the upper portion rotation connection of two body of tongs (1), pull -up seat (3) sets up in the upper side of body of tongs (1), is equipped with pull -up board (2) between body of tongs (1) and pull -up seat (3), the lower end rotation connection body of tongs (1) of pull -up board (2), the upper end rotation connection pull -up seat (3) of pull -up board (2), counterweight structure connects pull -up seat (3).

2. A rail clamp according to claim 1, wherein: The body of tongs (1) is provided with a first rail clamping protrusion (101) and a second rail clamping protrusion (102), the second rail clamping protrusion (102) is arranged on the lower side of the first rail clamping protrusion (101), the first rail clamping protrusion (101) clamps the lower jaw of the rail head, and the second rail clamping protrusion (102) clamps the structural protrusion on the upper end of the rail clamping plate at the rail joint.

3. The rail clamp of claim 1, wherein: The pull -up seat (3) includes a connecting plate (301), a bottom plate (302), a chain hanging ring (304), a chain hanging ring mounting plate (305) and a pull -up chain (306), the bottom plate (302) is arranged on the upper side of the connecting plate (301), the connecting plate (301) is rotationally connected with the upper end of the pull -up board (2), the chain hanging ring (304) is mounted on the chain hanging ring mounting plate (305), the chain hanging ring mounting plate (305) is fixed on the bottom plate (302), and the lower end of the pull -up chain (306) is mounted on the chain hanging ring (304).

4. A rail clamp according to claim 3, wherein: The chain hanging ring (304) is mounted on the chain hanging ring mounting plate (305) through bolts.

5. The rail clamp of claim 1, wherein: The counterweight structure includes counterweight blocks (5) and chain guards (303), two counterweight blocks (5) are arranged on the bottom plate (302), and the chain guards (303) are arranged on the two sides of the two counterweight blocks (5) and connected with the counterweight blocks (5).

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