Rail end self-locking device

Abstract

The invention discloses a self-locking device for the end of a rail, comprising a plurality of locking clamp mechanisms longitudinally and parallelly mounted on a locking beam, and the locking clamp mechanisms on each layer of the locking beam can lock or unlock the rails of the corresponding layer, the locking clamp mechanisms comprising a locking clamp housing fixedly mounted on the locking beam, a wedge block matched with the locking clamp housing, and a self-locking special hydraulic cylinder whose telescopic end is connected with the large end of the wedge block, the wedge block is provided with a limiting groove, and is equipped with a positioning bolt which passes through the limiting groove to fix the wedge block and the locking clamp housing together, a gap for accommodating the longitudinal rail is reserved between adjacent locking clamp mechanisms, when the telescopic end of the self-locking special hydraulic cylinder drives the wedge block to move along the matching surface with the locking clamp housing, the wedge block unilaterally squeezes or moves away from the rail, and can lock or unlock the rail in combination with the locking clamp housing of the adjacent locking clamp mechanism, and has the advantages of remote control automatic rail locking, fewer components, increased rail accommodating quantity, and strong rail locking force.

Description

Technical Field

[0001] The invention belongs to the technical field of locking rails, and in particular relates to a self-locking device for the end of a rail. Background Art

[0002] When using long-rail vehicles to transport rails, the rail end self-locking device is a special equipment for fixing the long rails. It is used to rigidly anchor the long rails to the vehicle structure to prevent the long rails from longitudinal displacement due to inertia during transportation, which may cause safety risks.

[0003] The existing locking devices usually clamp the rails up and down or clamp the rails horizontally. The locking devices are fixed on the crossbeams erected on the two side columns, and then the upper and lower pressure plates press the upper and lower surfaces of the rails respectively, and are connected by bolts. When the bolts are tightened, static friction is generated along the longitudinal direction of the rails, so that the rails are locked. Manual operation is complicated, time-consuming and labor-intensive. The hydraulic system using horizontal clamps requires a large installation space, has cumbersome components, and has insufficient installation positions. It can only be staggered, but not arranged in parallel, which limits the number of rails that can be accommodated on each layer, resulting in low rail transportation efficiency, delayed construction period, and labor consumption. Summary of the invention

[0004] The invention aims to provide a self-locking device for rail ends, which automatically controls rail locking and unlocking, saves time and effort in operation, and solves the problems of time and effort in clamping rails up and down or clamping rails horizontally, and large installation space for clamping rails with horizontal clamps.

[0005] To this end, the technical solution adopted by the present invention is: a self-locking device for the end of a rail, comprising a plurality of groups of locking clamp mechanisms longitudinally and parallelly installed on a locking beam, and the locking clamp mechanism on each layer of the locking beam can lock or unlock the rails of the corresponding layer, the locking clamp mechanism comprises a locking clamp shell fixedly installed on the locking beam, a wedge block mating with the locking clamp shell and a self-locking special hydraulic cylinder connected at a telescopic end to the big end of the wedge block, the wedge block is provided with a limiting groove and is equipped with a positioning bolt that passes through the limiting groove to fix the wedge block and the locking clamp shell together, and a gap is left between adjacent locking clamp mechanisms for accommodating the longitudinal rails, when the telescopic end of the self-locking special hydraulic cylinder drives the wedge block to move along the mating surface with the locking clamp shell, the wedge block unilaterally squeezes or moves away from the rail, and can lock or unlock the rail in combination with the locking clamp shell of the adjacent locking clamp mechanism.

[0006] As a preferred embodiment of the above scheme, the rails have two layers, which correspond to the upper and lower locking beams respectively. The double-layer locking beam can lock the ends of the double-layer rails and can also transport the double-layer rails at the same time, with high transportation efficiency; pulleys and longitudinal tracks are installed on both sides of the upper locking beam, and a traveling hydraulic cylinder is installed on the bottom side. The upper locking beam can drive the pulley to slide along the longitudinal track through the power provided by the traveling hydraulic cylinder until the positioning bolts of the lower locking beam are completely exposed. The upper and lower locking beams can be staggered to facilitate the positioning and fixation of the wedge block of the lower locking beam, making way for the operator's field of vision when locking the rails of one locking beam, and automatic movement is achieved through the traveling hydraulic cylinder, which saves manpower and is simple to operate.

[0007] Further preferably, a parking mechanism is provided at the bottom of the upper locking beam, and the parking mechanism includes a parking hydraulic cylinder with a parking lock installed at the telescopic end and a positioning and placement area located on the longitudinal track and close to both ends. There are four parking points on the longitudinal tracks on both sides, which can stably park the upper locking beam; the upper locking beam can push the parking lock laterally into the positioning and placement area through the parking hydraulic cylinder and lock it at the end of the longitudinal track. The parking hydraulic cylinder is used to achieve automatic parking, and the operation is convenient and quick.

[0008] Further preferably, a detachable wear plate is threadedly mounted on the side of the locking clamp mechanism close to the rail, and the service life of the device can be extended by replacing the wear plate, which is a reasonable design.

[0009] Further preferably, the detachable wear plate is made of ductile iron, which has a reasonable cost.

[0010] Further preferably, a rail baffle is provided at the end of each rail directly opposite the locking beam, and the rails on the same layer can be aligned flush with each other through the rail baffle to ensure that the rails will not longitudinally jump out of the locking beam, causing a safety accident.

[0011] Further preferably, the wedge block is placed in the locking clamp housing and fits with its inner wall, with a neat and beautiful appearance, leaving only the side close to the rail outside; the fitting bevel is located inside the locking clamp housing, and dust and gravel will not enter the fitting surface, thereby ensuring safety during use; the front end of the locking clamp housing is pointed, and the pointed shape ensures that there will be no bumps when the rail enters, thereby affecting the installation of the rail.

[0012] Further preferably, six sets of locking clamp mechanisms are installed on each layer of the locking beams. Depending on the width of the vehicle, each layer of locking beams of a common rail locking vehicle can accommodate six rails.

[0013] Further preferably, the front end of each layer of the locking beam is provided with a roller for receiving the rails to facilitate the movement of the rails, and the front end of the locking beam of the lower layer is also provided with an inclined platform extending forward and downward to facilitate the transportation of the rails to the locking beam.

[0014] Beneficial effects of the present invention:

[0015] (1) The driving force is provided by a self-locking hydraulic cylinder to realize remote control automatic rail locking, which is easy to operate and reduces manpower. During the rail locking process, workers do not need to be close to the rails, which increases the safety factor. The telescopic end of the self-locking hydraulic cylinder is connected to the big end of the wedge block, which can realize independent control of a single locking clamp mechanism, thereby performing separate locking and unlocking operations on any rail, which is highly flexible.

[0016] (2) The locking clamp mechanism uses a wedge block that fits with the locking clamp housing. The lateral width of the locking clamp mechanism can be increased by moving the wedge block to clamp the side wall of the rail. The wedge block has a small movement range and a strong force to lock the rail. It has few parts, low cost, and ingenious design.

[0017] (3) Several groups of locking clamp mechanisms are installed longitudinally and in parallel on the locking beam. Compared with the staggered installation of horizontal clamps, the number of rails that can be accommodated is significantly increased, and the components are more streamlined. The complicated components will not occupy too much installation space, and the installation is fast. Compared with the locking method of clamping the rails with bolts using upper and lower pressure plates, automatic control is obviously more convenient and the locking is more stable.

[0018] In summary, it has the advantages of remote-controlled automatic rail locking, fewer parts, increased rail storage capacity, and strong rail locking force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention (the upper locking beam and the lower locking beam are staggered).

[0020] Figure 2 for Figure 1 Top view of the .

[0021] Figure 3 for Figure 1 Front view of .

[0022] Figure 4 This is the front view of the upper locking beam.

[0023] Figure 5 for Figure 4 Bottom view of .

[0024] Figure 6 A cross-sectional view of the locking clamp mechanism (without the self-locking hydraulic cylinder installed).

[0025] Figure 7 for Figure 6 Right view of .

[0026] Figure 8 It is a schematic diagram of the structure in which the upper locking beam overlaps the lower locking beam. DETAILED DESCRIPTION

[0027] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0028] Combination Figure 1-Figure 8 As shown, a rail end self-locking device is mainly composed of a plurality of locking clamp mechanisms 1 longitudinally and parallelly installed on a locking beam 2, and the locking clamp mechanisms 1 on each layer of locking beam 2 can lock or unlock the rail A of the corresponding layer.

[0029] Six sets of locking clamp mechanisms 1 are preferably installed on each layer of locking beams 2 .

[0030] A detachable wear plate 14 is threadedly mounted on one side of the locking clamp mechanism 1 close to the rail A.

[0031] The removable wear plate 14 is made of ductile iron.

[0032] The locking clamp mechanism 1 is composed of a locking clamp housing 11 fixedly mounted on a locking beam 2, a wedge block 12 matched with the locking clamp housing 11, and a self-locking special hydraulic cylinder 13 whose telescopic end is connected to the large end of the wedge block 12.

[0033] The wedge block 12 is placed in the locking clamp housing 11 and fits with its inner wall, leaving only one side close to the rail A outside; the front end of the locking clamp housing 11 is pointed.

[0034] The wedge block 12 is provided with a limiting groove 121 and is equipped with a positioning bolt 122 that passes through the limiting groove 121 to fix the wedge block 12 and the locking clamp housing 11 together.

[0035] A gap for accommodating the longitudinal rail A is left between adjacent locking clamp mechanisms 1 .

[0036] The locking beam 2 is provided with a rail baffle 23 at the end of each rail A.

[0037] The rail A has two layers, corresponding to the upper and lower locking beams 2 respectively. Pulleys 21 and longitudinal tracks 3 are installed on both sides of the upper locking beam 2, and a traveling hydraulic cylinder 24 is installed on the bottom side.

[0038] The upper locking beam 2 can drive the pulley 21 to slide along the longitudinal track 3 through the power provided by the traveling hydraulic cylinder until the positioning bolts 122 of the lower locking beam 2 are completely exposed.

[0039] A parking mechanism is provided at the bottom of the upper locking beam 2.

[0040] The parking mechanism is composed of a parking hydraulic cylinder 22 with a parking lock 221 installed at the telescopic end and a positioning and placement area 31 located on the longitudinal track 3 and close to both ends.

[0041] The upper locking beam 2 can push the parking lock 221 laterally into the positioning and placement area 31 through the parking hydraulic cylinder 22 and lock it at the end of the longitudinal track 3.

[0042] When the telescopic end of the self-locking special hydraulic cylinder 13 drives the wedge block 12 to move along the matching surface with the locking clamp housing 11, the wedge block 12 unilaterally squeezes or moves away from the rail A, and can lock or unlock the rail A in combination with the locking clamp housing 11 of the adjacent locking clamp mechanism 1.

[0043] First, the upper locking beam 2 is pushed to the rear end of the longitudinal track 3 by the traveling hydraulic cylinder 24, and then the parking lock 221 is pushed by the parking hydraulic cylinder 22 to lock the upper locking beam 2, so that the upper and lower locking beams 2 are staggered.

[0044] The first layer of rails A is mounted on the corresponding locking clamp mechanism 1 and automatically locked by the self-locking special hydraulic cylinder 13 .

[0045] Then, the upper locking beam 2 is locked to the front end of the longitudinal track 3 by the parking mechanism, so that the upper and lower locking beams 2 overlap, and then the second layer of rails A is installed.

[0046] The ends of the two layers of rails A are kept flush by rail stops 23 .

Claims

1. A self-locking device for rail ends, Features: The invention comprises a plurality of groups of locking clamp mechanisms (1) longitudinally mounted on a locking beam (2) in parallel, and the locking clamp mechanisms (1) on each layer of the locking beam (2) can lock or unlock the steel rails (A) of the corresponding layer, the locking clamp mechanisms (1) comprising a locking clamp housing (11) fixedly mounted on the locking beam (2), a wedge block (12) matched with the locking clamp housing (11), and a self-locking special hydraulic cylinder (13) whose telescopic end is connected to the large end of the wedge block (12), the wedge block (12) being provided with a limiting groove (121) and equipped with a positioning bolt (122) passing through the limiting groove (121) to fix the wedge block (12) and the locking clamp housing (11) together, and a gap for accommodating the longitudinal steel rails (A) is reserved between adjacent locking clamp mechanisms (1), and when the telescopic end of the self-locking special hydraulic cylinder (13) drives the wedge block (12) to move along the matching surface with the locking clamp housing (11), the positioning bolt (122) is provided to fix the wedge block (12) and the locking clamp housing (11) together. When moving, the wedge block (12) unilaterally presses or moves away from the rail (A), and can be combined with the locking clamp housing (11) of the adjacent locking clamp mechanism (1) to lock or unlock the rail (A); the rail (A) has two layers, which correspond to the upper and lower locking beams (2), respectively; the upper locking beam (2) is provided with pulleys (21) and longitudinal tracks (3) on both sides, and a running hydraulic cylinder (24) is provided on the bottom side; the upper locking beam (2) can drive the pulley (21) to slide along the longitudinal track (3) through the power provided by the running hydraulic cylinder until the positioning bolt (122) of the lower locking beam (2) is completely exposed; the locking beam (2) is provided with a rail baffle (23) at the end of each rail (A); the wedge block (12) is placed in the locking clamp housing (11) and fits with its inner wall, leaving only the side close to the rail (A) outside; the front end of the locking clamp housing (11) is pointed.

2. A rail end self-locking device according to claim 1, Features: A parking mechanism is provided at the bottom of the upper locking beam (2), the parking mechanism comprising a parking hydraulic cylinder (22) with a parking lock (221) installed at the telescopic end and a positioning and placement area located on the longitudinal track (3) and close to both ends. The upper locking beam (2) can push the parking lock (221) laterally through the parking hydraulic cylinder (22) to enter the positioning and placement area and lock at the end of the longitudinal track (3).

3. A rail end self-locking device according to claim 1, Features: A detachable wear plate (14) is threadedly mounted on one side of the locking clamp mechanism (1) close to the rail (A).

4. A rail end self-locking device according to claim 3, Features: The removable wear plate (14) is made of ductile iron.

5. A rail end self-locking device according to claim 1, Features: Six sets of locking clamp mechanisms (1) are installed on each layer of the locking beams (2).

6. A rail end self-locking device according to claim 1, Features: The front end of each layer of the locking beam (2) is provided with a roller (25) for receiving the steel rail (A), and the front end of the locking beam (2) of the lower layer is also provided with an inclined platform (26) extending forward and downward.

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