A multi-layer sleeper platform for railway construction

Abstract

The present invention belongs to the technical field of sleeper separation platforms, and discloses a multi-layer sleeper separation platform for railway construction, wherein a second elevator is installed on the sleeper separation platform, and a first elevator, a sleeper conveyor and a sleeper separation conveyor arranged in sequence along the length direction of the sleeper separation platform are installed on the sleeper separation platform below the second elevator; a sleeper positioning machine is installed above the joint between the sleeper conveyor and the sleeper separation conveyor; and a rail row positioning device is installed on the sleeper separation platform above the sleeper separation conveyor. The present invention provides a specific layered platform, which makes it easier to lay sleepers at intervals, and no longer needs to be hoisted one by one onto the sleeper separation platform, thus reducing the number of hoisting times. In addition, the present invention can easily achieve sleeper interval setting through the sleeper separation conveyor, and can easily achieve precise control, saving a lot of workload and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of split-sleeper platforms, and in particular relates to a multi-layer split-sleeper platform for railway construction. Background Art

[0002] In the prior art, a plurality of sleepers are usually placed on the sleeper distribution platform as required, and then the rail row is placed on the sleeper distribution platform above all the sleepers using a lifting tool, so as to facilitate the connection between the sleepers and the rail row on the sleeper distribution platform. In this process, because there are a large number of sleepers, they must be placed at intervals as required. If the sleepers are lifted one by one, the workload is relatively large and the efficiency is very low. Therefore, how to easily and quickly place all the sleepers on the sleeper distribution platform has always been a difficult problem that needs to be solved.

[0003] In response to the shortcomings in the above-mentioned technology, the technology with application number 202421853925.6 discloses a main frame for a sleeper separation platform, including a sleeper separation platform, and two sleeper separation conveyors for cooperating with and receiving sleepers are installed on the upper part of the sleeper separation platform, and the two sleeper separation conveyors are parallel to each other and are both extended along the length direction of the sleeper separation platform, so as to realize the connection between the rail row and the sleepers at the upper end of the sleeper separation conveyor; two sleeper conveyors parallel to each other are also installed on the upper part of the sleeper separation platform, and the two sleeper conveyors are extended along the length direction of the sleeper separation platform, and the output ends of the two sleeper conveyors are arranged corresponding to the input ends of the sleeper separation conveyors; a sleeper positioning machine mounting beam is also installed on the sleeper separation platform, which is located simultaneously above the output end of the sleeper conveyor and above the input end of the sleeper separation conveyor, so as to install the sleeper positioning machine on the sleeper positioning machine mounting beam, thereby facilitating the multiple sleepers on the sleeper conveyor to be pushed to the sleeper separation conveyor in sequence through the sleeper positioning machine.

[0004] Through the above technology, a main frame for a sleeper platform is provided, which is convenient for laying sleepers. However, the specific implementation structure is still a relatively vague concept and needs further detailed research. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-layer sleeper platform for railway construction to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A multi-layer sleeper distribution platform for railway construction comprises a sleeper distribution platform, on which a second elevator is installed for hoisting multiple layers of sleepers onto the second elevator; on the sleeper distribution platform below the second elevator, a first elevator, a sleeper conveyor and a sleeper distribution conveyor are installed, which are arranged in sequence along the length direction of the sleeper distribution platform, for moving the sleepers on the second elevator layer by layer onto the sleeper conveyor via the first elevator; a sleeper positioning machine is installed above the joint between the sleeper conveyor and the sleeper distribution conveyor, for pushing the sleepers on the sleeper conveyor one by one onto the sleeper distribution conveyor via the sleeper positioning machine, so that all the sleepers can be arranged at intervals on the sleeper distribution conveyor as required; and a rail row positioning device is installed on the sleeper distribution platform above the sleeper distribution conveyor, for positioning the rail row onto the sleepers arranged at intervals via the rail row positioning device.

[0008] As a preferred technical solution in the present invention, two second vertical mounting plates located above the sleeper conveyor are installed on the sleeper distribution platform, and the second elevator includes a second elevator mounting beam extending along the width direction of the sleeper distribution platform, and the second elevator mounting beam is slidably connected between the two second vertical mounting plates in the vertical direction; the two second vertical mounting plates are fixedly connected to a second horizontal mounting seat on one side away from each other, and the heights of the two second horizontal mounting seats in the horizontal direction are both higher than the heights of the second elevator mounting beam in the horizontal direction;

[0009] A second lifting cylinder is installed on the second horizontal mounting seat, a second U-shaped mounting seat located above the second horizontal mounting seat is installed on the telescopic rod of the second lifting cylinder, a second lifting sprocket is rotatably connected in the second U-shaped mounting seat, an upper end of the second lifting sprocket is meshed with the middle part of the second lifting chain, one end of the second lifting chain is fixedly connected to the second horizontal mounting seat, and the other end of the second lifting chain is fixedly connected to the end of the second elevator mounting beam;

[0010] Two second telescopic fork assemblies extending toward the first elevator are vertically slidably arranged on the second elevator mounting crossbeam, and a second telescopic fork driving mechanism for controlling the extension or contraction of the two second telescopic fork assemblies is also mounted on the second elevator mounting crossbeam.

[0011] As a preferred technical solution in the present invention, the second telescopic fork assembly includes a second U-shaped support groove with a slide groove at the upper end and a second telescopic fork slidably connected to the second U-shaped support groove, the second U-shaped support groove is slidably connected to the second elevator mounting beam, and the upper end surface of the second telescopic fork and the upper end surface of the second U-shaped support groove are located on the same horizontal plane;

[0012] The end of the second U-shaped support groove away from the first elevator is rotatably connected to the second retraction guide wheel, the other end of the second U-shaped support groove is rotatably connected to the second extension guide wheel located below the second telescopic fork, the second telescopic fork is provided with a second telescopic fork fixing point at the end away from the first elevator, the second elevator mounting beam is provided with a second beam extension fixing point located above the second U-shaped support groove on the side away from the first elevator, a second retraction rope that bypasses the second retraction guide wheel is connected between the second telescopic fork fixing point and the second beam extension fixing point; the lower end of the second elevator mounting beam is provided with a second beam retraction fixing point, and a second extension rope that bypasses the second extension guide wheel is connected between the second beam retraction fixing point and the second telescopic fork fixing point;

[0013] The second telescopic fork driving mechanism includes a second driving motor, a second telescopic fork driving rack and a second telescopic fork driving gear driven by the second driving motor, the second telescopic fork driving rack extends along the length direction of the second U-shaped support groove and is fixedly connected to both second U-shaped support grooves, and the second telescopic fork driving rack is meshed with the second telescopic fork driving gear.

[0014] As a preferred technical solution in the present invention, two first vertical mounting plates are installed on the pillow sub-platform, and the second elevator includes a first elevator mounting beam extending along the width direction of the pillow sub-platform, and the first elevator mounting beam is slidably connected between the two first vertical mounting plates in the vertical direction; the two first vertical mounting plates are fixedly connected with first horizontal mounting seats on one side away from each other, and the heights of the two first horizontal mounting seats in the horizontal direction are both higher than the heights of the first elevator mounting beam in the horizontal direction;

[0015] A first lifting cylinder is installed on the first horizontal mounting seat, a first U-shaped mounting seat located above the first horizontal mounting seat is installed on the telescopic rod of the first lifting cylinder, a first lifting sprocket is rotatably connected in the first U-shaped mounting seat, an upper end of the first lifting sprocket is meshed with a middle part of the first lifting chain, one end of the first lifting chain is fixedly connected to the first horizontal mounting seat, and the other end of the first lifting chain is fixedly connected to the end of the first elevator mounting beam;

[0016] Two first telescopic fork assemblies extending toward the second elevator are vertically slidably arranged on the first elevator mounting crossbeam, and a second telescopic fork driving mechanism for controlling the extension or contraction of the two first telescopic fork assemblies is also installed on the first elevator mounting crossbeam.

[0017] As a preferred technical solution in the present invention, the first telescopic fork assembly includes a first U-shaped support groove with a slide groove at the upper end and a first telescopic fork slidably connected to the first U-shaped support groove, the first U-shaped support groove is slidably connected to the first elevator mounting beam, and the upper end surface of the first telescopic fork and the upper end surface of the first U-shaped support groove are located on the same horizontal plane;

[0018] One end of the first U-shaped support groove away from the first elevator is rotatably connected to a first retraction guide wheel, and the other end of the first U-shaped support groove is rotatably connected to a first extension guide wheel located below the first telescopic fork, a first telescopic fork fixing point is provided at one end of the first telescopic fork away from the second elevator, a first beam extension fixing point located above the first elevator mounting beam is provided on the side of the first elevator mounting beam away from the second elevator, and a first retraction rope that bypasses the first retraction guide wheel is connected between the first telescopic fork fixing point and the first beam extension fixing point; a first beam retraction fixing point is provided at the lower end of the first elevator mounting beam, and a first extension rope that bypasses the first extension guide wheel is connected between the first beam retraction fixing point and the first telescopic fork fixing point;

[0019] The second telescopic fork driving mechanism includes a first driving motor, a first synchronous shaft, a first active sprocket, a first passive sprocket, a first telescopic fork driving gear and a first telescopic fork driving rack. The first driving motor is installed on the first elevator mounting beam, the first synchronous shaft is rotatably connected to the first elevator mounting beam, the first active sprocket is installed on the motor shaft of the first driving motor, the first passive sprocket is installed at the middle of the first synchronous shaft, and the first active sprocket is connected to the first passive sprocket by a chain; both ends of the first synchronous shaft are fixedly connected with the first telescopic fork driving gear, and the two first U-shaped support grooves are fixedly connected with a first telescopic fork driving rack slidably connected to the first elevator mounting beam, and each first telescopic fork driving rack is meshed with a first telescopic fork driving gear.

[0020] As a preferred technical solution in the present invention, the sleeper conveyor includes two sleeper conveyor platforms extending along the length direction of the sleeper separation platform and installed parallel to the sleeper separation platform, both ends of the sleeper conveyor platforms are rotatably connected with sleeper conveyor sprockets, a double-row straight plate chain arranged in a ring is connected between the two sleeper conveyor sprockets, and one end of the sleeper conveyor is equipped with a sleeper conveyor drive motor for driving the sleeper conveyor sprockets on the two sleeper conveyor platforms to rotate.

[0021] As a preferred technical solution in the present invention, the pillow separation conveyor includes two pillow separation conveyor platforms extending along the length direction of the pillow separation platform and installed parallel to the pillow separation platform, both ends of the pillow separation conveyor platforms are rotatably connected with pillow separation conveyor sprockets, a double-row straight plate chain arranged in a ring is connected between the two pillow separation conveyor sprockets, and a pillow separation conveyor drive motor for driving the pillow separation conveyor sprockets on the two pillow separation conveyor platforms to rotate is installed at one end of the pillow separation conveyor.

[0022] As a preferred technical solution in the present invention, the sleeper separation platform is equipped with a mounting frame located above the joint between the sleeper conveyor and the sleeper separation conveyor, and the sleeper positioning machine is installed on the mounting frame;

[0023] The sleeper positioning machine comprises a driving cylinder, a guide rail connecting seat, a first linear guide rail, a transverse positioning plate, a second linear guide rail and a longitudinal positioning plate, two driving cylinders are provided and both are mounted on a mounting frame, a piston rod of each driving cylinder is connected to a guide rail connecting seat, a vertically extending first linear guide rail is mounted on each guide rail connecting seat, a vertically arranged transverse positioning plate is connected to each first linear guide rail, so as to control the lifting and lowering of the transverse positioning plate through the first linear guide rail, and a ball bearing for contacting with the sleeper is mounted on the lower end of each transverse positioning plate;

[0024] A second vertically extending linear guide is installed on each guide rail connecting seat, and the second linear guide is connected to a longitudinal positioning plate which is lifted and lowered under the control of the second linear guide, and the longitudinal positioning plate is located on the side of the transverse positioning plate away from the sleeper conveyor, and the lower part of the longitudinal positioning plate facing the sleeper conveyor is a first inclined surface, when the first inclined surface and the sleeper conveyor are located on the same horizontal plane, the distance between the first inclined surface and the sleeper conveyor gradually increases from top to bottom; the lower part of the longitudinal positioning plate facing the sleeper conveyor is a second inclined surface, when the second inclined surface and the sleeper conveyor are located on the same horizontal plane, the distance between the second inclined surface and the sleeper conveyor gradually increases from top to bottom.

[0025] As a preferred technical solution in the present invention, the rail row positioning device includes a fixed end receiving plate and a movable end receiving plate installed on the pillow separation platforms at both ends of the pillow separation conveyor, the upper end of the fixed end receiving plate is fixedly connected with a fixed end limiting plate, the side of the fixed end limiting plate facing the rail row is the fixed end rail row limiting side, the lower part of the fixed end rail row limiting side is the fixed end vertical limiting surface in contact with the rail row surface, the upper part of the fixed end rail row limiting side is the fixed end arc transition surface, the lower end of the fixed end arc transition surface is tangent to the fixed end vertical limiting surface, and the spacing between the fixed end arc transition surface and the rail row gradually decreases from top to bottom;

[0026] The upper end of the mobile end receiving plate is fixedly connected with a mobile end limiting plate, the side of the mobile end limiting plate facing the rail row is the mobile end rail row limiting side, the lower part of the mobile end rail row limiting side is the mobile end vertical limiting surface in contact with the rail row surface, the upper part of the mobile end rail row limiting side is the mobile end arc transition surface, the lower end of the mobile end arc transition surface is tangent to the mobile end vertical limiting surface, and the spacing between the mobile end arc transition surface and the rail row gradually decreases from top to bottom;

[0027] A mobile end connecting beam located above the sleeper separation conveyor is installed at one end of the sleeper separation platform, the mobile end connecting beam extends along the width direction of the sleeper separation platform, and both ends of the mobile end connecting beam are slidably connected to the sleeper separation platform along the length direction of the sleeper separation platform; the mobile end connecting plate is detachably connected to the mobile end connecting beam by an adjusting bolt, and a long hole extending along its length direction is provided on the mobile end connecting beam, the screw section of the adjusting bolt passes through the long hole and is threadedly connected to the mobile end connecting plate, and the nut section of the adjusting bolt abuts against the mobile end connecting beam.

[0028] As a preferred technical solution in the present invention, multiple sleeper limit assemblies arranged along the length direction of the sleeper limit platform are installed on both sides of the sleeper limit platform, and the sleeper limit assembly includes a third linear guide rail driven by an electric push rod, and a conical guide plate is installed on the third linear guide rail, which moves up and down under the control of the third linear guide rail, and the upper part of the conical guide plate is a conical limit portion whose width gradually increases from top to bottom.

[0029] Beneficial effect: During the operation of the present invention, firstly, a crane is used to hoist the multi-layer sleepers onto the second elevator, and then the first elevator cooperates with the second elevator so that the first elevator removes the sleepers on the second elevator layer by layer and places them on the sleeper conveyor, and the sleeper conveyor is turned on to transport each layer of sleepers to the sleeper separation conveyor separately. At the output end of the sleeper conveyor, the sleeper positioning machine starts to work and pushes the sleepers on the sleeper conveyor one by one onto the sleeper separation conveyor. Each time a sleeper is pushed onto the sleeper separation conveyor, the sleeper separation conveyor automatically runs to adjust the spacing between adjacent sleepers until all sleepers are arranged as required on the sleeper separation conveyor; then the rail row is hoisted onto the rail row positioning device, and the rail row can be connected to all sleepers. The present invention provides a specific layered platform, which makes it easier to lay sleepers at intervals, and no longer needs to be hoisted one by one onto the sleeper separation platform, reducing the number of hoisting times. Moreover, the invention can easily realize the interval setting of sleepers through the sleeper separation conveyor, and can easily realize precise control, saving a lot of workload and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0032] Figure 3 It is a schematic diagram of the first and second elevators in the present invention when taking away the sleepers;

[0033] Figure 4 is a three-dimensional schematic diagram of the second elevator in the present invention;

[0034] Figure 5is a side view of the second elevator in the present invention;

[0035] Figure 6 is a three-dimensional schematic diagram of a first elevator in the present invention;

[0036] Figure 7 for Figure 6 A magnified schematic diagram of part B;

[0037] Figure 8 is a side view of a first elevator in the present invention;

[0038] Fig. 9 It is a front view of the first elevator in the present invention;

[0039] Fig.10 It is a schematic diagram of the installation of the sleeper conveyor and the sleeper separation conveyor on the sleeper separation platform in the present invention;

[0040] Fig.11 for Fig.10 A magnified schematic diagram of part C;

[0041] Fig.12 for Fig.10 The enlarged schematic diagram of the D part;

[0042] Fig.13 It is a schematic diagram of the installation of the sleeper positioning machine of the present invention on the sleeper separation platform;

[0043] Fig.14 for Fig.13 Enlarged schematic diagram of part E in the middle.

[0044] In the figure: 1-splitting platform; 101-second vertical mounting plate; 102-second horizontal mounting seat; 103-first vertical mounting plate; 104-first horizontal mounting seat; 105-mounting frame;

[0045] 2-second lift; 201-second lift mounting beam; 202-second lift cylinder; 203-second U-shaped mounting seat; 204-second lift sprocket; 205-second U-shaped support groove; 206-second telescopic fork; 207-second retraction guide wheel; 208-second extension guide wheel; 209-second telescopic fork fixing point; 210-second beam extension fixing point; 211-second retraction rope; 212-second beam retraction fixing point; 213-second extension rope; 214-second drive motor; 215-second telescopic fork drive rack;

[0046] 3-first lift; 301-first lift mounting beam; 302-first lift cylinder; 303-first U-shaped mounting seat; 304-first lift sprocket; 305-first U-shaped support groove; 306-first telescopic fork; 307-first retraction guide wheel; 308-first extension guide wheel; 309-first telescopic fork fixing point; 310-first beam extension fixing point; 311-first retraction rope; 312-first beam retraction fixing point; 313-first extension rope; 314-first drive motor; 315-first synchronization shaft; 316-first active sprocket; 317-first passive sprocket; 318-first telescopic fork drive gear; 319-first telescopic fork drive rack; 320-first lift chain.

[0047] 4-sleeper conveyor; 401-sleeper conveyor platform; 5-sleeper conveyor; 501-sleeper conveyor platform;

[0048] 6-sleeper positioning machine; 601-driving cylinder; 602-guide rail connecting seat; 603-first linear guide; 604-lateral positioning plate; 605-second linear guide; 606-longitudinal positioning plate; 607-ball bearing;

[0049] 7-track positioning device; 701-fixed end receiving plate; 702-movable end receiving plate; 703-fixed end limiting plate; 704-movable end limiting plate; 705-movable end connecting beam;

[0050] 8-sleeper limiting assembly; 801-electric push rod; 802-third linear guide rail; 803-tapered guide plate. DETAILED DESCRIPTION

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0052] Example:

[0053] like Figure 1-Figure 14As shown, the present embodiment provides a multi-layer sleeper distribution platform for railway construction, including a sleeper distribution platform 1, on which a second elevator 2 is installed for hoisting multi-layer sleepers onto the second elevator 2; a first elevator 3, a sleeper conveyor 4 and a sleeper distribution conveyor 5 arranged in sequence along the length direction of the sleeper distribution platform 1 are installed on the sleeper distribution platform 1 below the second elevator 2, for moving the sleepers on the second elevator 2 layer by layer onto the sleeper conveyor 4 through the first elevator 3, and then moving all the sleepers on the second elevator 2 onto the sleeper conveyor 4; the A sleeper positioning machine 6 is installed above the joint between the sleeper conveyor 4 and the sleeper separation conveyor 5, which is used to push the sleepers on the sleeper conveyor 4 one by one to the sleeper separation conveyor 5 through the sleeper positioning machine 6, and then adjust the spacing between adjacent sleepers through the sleeper separation conveyor 5, so that all sleepers can be arranged at intervals on the sleeper separation conveyor 5 as required; a rail row positioning device 7 is installed on the sleeper separation platform 1 above the sleeper separation conveyor 5, and the rail row can be installed on the rail row positioning device 7, so as to position the rail row through the rail row positioning device 7 and place it above the sleepers that are arranged at intervals.

[0054] During the operation of the present invention, firstly, a crane is used to hoist the multi-layer sleepers onto the second elevator 2, and then the first elevator 3 cooperates with the second elevator 2 so that the first elevator 3 removes the sleepers on the second elevator 2 layer by layer and places them on the sleeper conveyor 4, and the sleeper conveyor 4 is turned on to transport each layer of sleepers separately to the sleeper conveyor 5. At the output end of the sleeper conveyor 4, the sleeper positioning machine 6 starts to work and pushes the sleepers on the sleeper conveyor 4 to the sleeper conveyor 5 one by one. Every time a sleeper is pushed to the sleeper conveyor 5, the sleeper conveyor 5 automatically runs to adjust the spacing between adjacent sleepers until all the sleepers are arranged as required on the sleeper conveyor 5; then the rail row is hoisted onto the rail row positioning device 7, and the rail row can be connected to all the sleepers. The present invention provides a specific layered platform, which makes the laying of sleepers at intervals simpler. There is no need to lift them one by one onto the sleeper platform, thus reducing the number of lifting times. Moreover, the invention can easily achieve the interval setting of sleepers through a sleeper conveyor, and can easily achieve precise control, thus saving a lot of workload and improving work efficiency.

[0055] As a preferred implementation scheme in this embodiment, it needs to be further explained that two second vertical mounting plates 101 located above the sleeper conveyor 4 are installed on the sleeper distribution platform 1, and the second elevator 2 includes a second elevator mounting beam 201 extending along the width direction of the sleeper distribution platform 1, and the second elevator mounting beam 201 is slidably connected between the two second vertical mounting plates 101 along the vertical direction, thereby realizing lifting and lowering movement; the two second vertical mounting plates 101 are fixedly connected to a second horizontal mounting seat 102 on one side away from each other, and the heights of the two second horizontal mounting seats 102 in the horizontal direction are both higher than the heights of the second elevator mounting beam 201 in the horizontal direction, so that the height of the second lifting sprocket 204 in the following text is always higher than the second elevator mounting beam 201; the second horizontal mounting seat 102 is installed There is a second lifting cylinder 202, and a second U-shaped mounting seat 203 located above the second horizontal mounting seat 102 is installed on the telescopic rod of the second lifting cylinder 202. A second lifting sprocket 204 is rotatably connected in the second U-shaped mounting seat 203. The upper end of the second lifting sprocket 204 is meshed with the middle part of the second lifting chain, one end of the second lifting chain is fixedly connected to the second horizontal mounting seat 102, and the other end of the second lifting chain is fixedly connected to the end of the second elevator mounting beam 201. The second lifting cylinder 202 drives the second lifting sprocket 204 to rise and fall through the second U-shaped mounting seat 203. Because the height of the second horizontal mounting seat 102 does not change, the height of one end of the second lifting chain does not change. In this way, the second elevator mounting beam 201 can be driven to rise and fall through the other end of the second lifting chain, and the adjustment is simple and stable.

[0056] Two second telescopic fork assemblies extending toward the first elevator 3 are vertically slidably mounted on the second elevator mounting crossbeam 201. A second telescopic fork driving mechanism for controlling the extension or contraction of the two second telescopic fork assemblies is also mounted on the second elevator mounting crossbeam 201, so as to control the distance between the second telescopic fork assemblies and the first elevator 3, thereby facilitating moving the multi-layer sleepers on the second telescopic fork assemblies onto the first elevator 3 layer by layer.

[0057] As a preferred implementation scheme in this embodiment, it needs to be further explained that the second telescopic fork assembly includes a second U-shaped support groove 205 with a slide groove on the upper end and a second telescopic fork 206 slidably connected to the second U-shaped support groove 205, so that the second telescopic fork 206 slides in the second U-shaped support groove 205 to adjust the length of the second telescopic fork assembly, and the second U-shaped support groove 205 is slidably connected to the second elevator mounting beam 201 to adjust the distance between the second telescopic fork assembly and the first elevator 3, so that the second telescopic fork assembly and the first elevator 3 maintain a suitable distance, so that the first elevator 3 can remove the sleeper from the second telescopic fork assembly, and the upper end surface of the second telescopic fork 206 and the upper end surface of the second U-shaped support groove 205 are located on the same horizontal plane, so as to stably support the sleeper.

[0058] The second U-shaped support groove 205 is rotatably connected to a second retracting guide wheel 207 at one end away from the first elevator 3, and the other end of the second U-shaped support groove 205 is rotatably connected to a second extending guide wheel 208 located below the second telescopic fork 206. The second telescopic fork 206 is provided with a second telescopic fork fixing point 209 at one end away from the first elevator 3. The second elevator mounting crossbeam 201 is provided with a second crossbeam extension fixing point 210 located above the second U-shaped support groove 205 at one side away from the first elevator 3. The second telescopic fork fixing point 209 and the second crossbeam extension fixing point 210 are connected to each other. 0 is connected with a second retraction rope 211 that bypasses the second retraction guide wheel 207; a second beam retraction fixing point 212 is provided at the lower end of the second elevator mounting beam 201, and a second extension rope 213 that bypasses the second extension guide wheel 208 is connected between the second beam retraction fixing point 212 and the second telescopic fork fixing point 209; the second telescopic fork driving mechanism includes a second driving motor 214, a second telescopic fork driving rack 215 and a second telescopic fork driving gear driven by the second driving motor 214, and the second telescopic fork driving rack 215 is along the second U-shaped support groove 2 05 extends in the length direction and is fixedly connected to the two second U-shaped support grooves 205, and the second telescopic fork driving rack 215 is meshed with the second telescopic fork driving gear. In practice, the second driving motor 214 is started to drive the second telescopic fork driving gear to rotate, and the second telescopic fork driving gear drives the second telescopic fork driving rack 215 to approach or move away from the first elevator 3. When the second telescopic fork driving rack 215 drives the two second U-shaped support grooves 205 away from the first elevator 3, because the second crossbeam extension fixing point 210 does not move, the second retracting guide wheel 207 moves away from the first elevator 3. When the second telescopic fork drives the rack 215 to drive the two second U-shaped support grooves 205 to approach the first lift 3, because the second beam retraction fixed point 212 will not move, when the second extension guide wheel 208 moves in the direction close to the first lift 3, it will drive the second telescopic fork 206 to expand outward from the second U-shaped support groove 205, further extending the entire second telescopic fork assembly, thereby making the extension and retraction of the second telescopic fork assembly more efficient.

[0059] As a preferred implementation scheme in this embodiment, it needs to be further explained that two first vertical mounting plates 103 are installed on the sleeper sub-platform 1, and the second elevator 2 includes a first elevator mounting beam 301 extending along the width direction of the sleeper sub-platform 1, and the first elevator mounting beam 301 is slidably connected between the two first vertical mounting plates 103 along the vertical direction, thereby realizing lifting and lowering movement; the two first vertical mounting plates 103 are fixedly connected with a first horizontal mounting seat 104 on one side away from each other, and the heights of the two first horizontal mounting seats 104 in the horizontal direction are higher than the heights of the first elevator mounting beam 301 in the horizontal direction, so that the height of the first lifting sprocket 304 in the following text is always higher than the first elevator mounting beam 301; the first horizontal mounting seat 104 is installed with a first lifting cylinder 302, and the first A first U-shaped mounting seat 303 located above the first horizontal mounting seat 104 is installed on the telescopic rod of the lifting cylinder 302, and a first lifting sprocket 304 is rotatably connected in the first U-shaped mounting seat 303. The upper end of the first lifting sprocket 304 is meshed with the middle part of the first lifting chain 320, one end of the first lifting chain 320 is fixedly connected to the first horizontal mounting seat 104, and the other end of the first lifting chain 320 is fixedly connected to the end of the first elevator mounting beam 301. The first lifting cylinder 302 drives the first lifting sprocket 304 to rise and fall through the first U-shaped mounting seat 303. Because the height of the first horizontal mounting seat 104 does not change, the height of one end of the first lifting chain 320 does not change. In this way, the first elevator mounting beam 301 can be driven to rise and fall through the other end of the first lifting chain 320, and the adjustment is simple and stable.

[0060] Two first telescopic fork assemblies extending toward the second elevator 2 are vertically slidably mounted on the first elevator mounting crossbeam 301. A second telescopic fork driving mechanism for controlling the extension or contraction of the two first telescopic fork assemblies is also mounted on the first elevator mounting crossbeam 301, so as to control the distance between the first telescopic fork assemblies and the second elevator 2, thereby facilitating moving the multi-layer sleepers on the second telescopic fork assembly onto the first elevator 3 layer by layer.

[0061] As a preferred implementation scheme in this embodiment, it needs to be further explained that the first telescopic fork assembly includes a first U-shaped support groove 305 with a slide groove on the upper end and a first telescopic fork 306 slidably connected to the first U-shaped support groove 305, the first U-shaped support groove 305 is slidably connected to the first elevator mounting beam 301, and the upper end surface of the first telescopic fork 306 and the upper end surface of the first U-shaped support groove 305 are located on the same horizontal plane.

[0062] The first U-shaped support groove 305 is rotatably connected to the first retraction guide wheel 307 at one end away from the first elevator 3, and the other end of the first U-shaped support groove 305 is rotatably connected to the first extension guide wheel 308 located below the first telescopic fork 306. The first telescopic fork 306 is provided with a first telescopic fork fixing point 309 at one end away from the second elevator 2. The first elevator mounting beam 301 is provided with a first beam extension fixing point 310 located above the first elevator mounting beam 301 on the side away from the second elevator 2. A first retraction rope 311 that bypasses the first retraction guide wheel 307 is connected between the first telescopic fork fixing point 309 and the first beam extension fixing point 310; a first beam retraction fixing point 312 is provided at the lower end of the first elevator mounting beam 301, and a first extension rope 313 that bypasses the first extension guide wheel 308 is connected between the first beam retraction fixing point 312 and the first telescopic fork fixing point 309; the second telescopic fork driving mechanism It includes a first drive motor 314, a first synchronous shaft 315, a first active sprocket 316, a first passive sprocket 317, a first telescopic fork drive gear 318 and a first telescopic fork drive rack 319. The first drive motor 314 is installed on the first elevator mounting beam 301, the first synchronous shaft 315 is rotatably connected to the first elevator mounting beam 301, the first active sprocket 316 is installed on the motor shaft of the first drive motor 314, the first passive sprocket 317 is installed in the middle of the first synchronous shaft 315, and the first active sprocket 316 and the first passive sprocket 317 are connected by a chain; both ends of the first synchronous shaft 315 are fixedly connected with the first telescopic fork drive gear 318, and the two first U-shaped support grooves 305 are fixedly connected with a first telescopic fork drive rack 319 slidably connected to the first elevator mounting beam 301, and each first telescopic fork drive rack 319 is meshed with a first telescopic fork drive gear 318.In practice, the first driving motor 314 is started, driving the first active sprocket 316 to rotate, the first active sprocket 316 drives the first passive sprocket 317 to rotate through the chain, the first passive sprocket 317 drives the two first telescopic fork driving gears 318 to rotate synchronously through the first synchronization shaft 315, the first telescopic fork driving gear 318 drives the first telescopic fork driving rack 319 to move towards or away from the second elevator 2, when the first telescopic fork driving rack 319 drives the two first U-shaped support grooves 305 away from the second elevator 2, because the first crossbeam extension fixing point 310 does not move, the first retracting guide wheel When 307 moves in the direction away from the second elevator 2, it will drive the first telescopic fork 306 to retract into the first U-shaped support groove 305, further reducing the overall length. Conversely, when the first telescopic fork driving rack 319 drives the two first U-shaped support grooves 305 to approach the second elevator 2, because the first crossbeam retraction fixed point 312 will not move, when the first extension guide wheel 308 moves in the direction close to the second elevator 2, it will drive the first telescopic fork 306 to expand outward from the first U-shaped support groove 305, further extending the entire first telescopic fork assembly, thereby making the extension and retraction of the first telescopic fork assembly more efficient.

[0063] As a preferred implementation scheme in this embodiment, it needs to be further explained that the sleeper conveyor 4 includes two sleeper conveyor platforms 401 extending along the length direction of the sleeper separation platform 1 and installed parallel to the sleeper separation platform 1, both ends of the sleeper conveyor platforms 401 are rotatably connected with sleeper conveyor sprockets, and a double-row straight plate chain arranged in a ring is connected between the two sleeper conveyor sprockets. A sleeper conveyor driving motor for driving the sleeper conveyor sprockets on the two sleeper conveyor platforms 401 to rotate is installed at one end of the sleeper conveyor 4. The sleeper conveyor driving motor can drive the double-row straight plate chain to rotate by controlling the sleeper conveyor sprocket, thereby driving the sleeper to move stably toward the sleeper separation conveyor 5.

[0064] As a preferred implementation scheme in this embodiment, it needs to be further explained that the pillow separation conveyor 5 includes two pillow separation conveyor platforms 501 extending along the length direction of the pillow separation platform 1 and installed parallel to the pillow separation platform 1, both ends of the pillow separation conveyor platforms 501 are rotatably connected with pillow separation conveyor sprockets, and a double-row straight plate chain arranged in a ring is connected between the two pillow separation conveyor sprockets. A pillow separation conveyor driving motor for driving the pillow separation conveyor sprockets on the two pillow separation conveyor platforms 501 to rotate is installed at one end of the pillow separation conveyor 5. The pillow separation conveyor driving motor can drive the double-row straight plate chain to rotate by controlling the pillow separation conveyor sprocket, and then drive the sleepers moved to the pillow separation conveyor 5 to move, so as to realize the staggered arrangement of the sleepers.

[0065] As a preferred implementation scheme in this embodiment, it needs to be further explained that the sleeper separation platform 1 is equipped with an installation frame 105 located above the joint between the sleeper conveyor 4 and the sleeper separation conveyor 5, and the sleeper positioning machine 6 is installed on the installation frame 105, so that the sleeper positioning machine 6 can play a role above the joint between the sleeper conveyor 4 and the sleeper separation conveyor 5.

[0066] In further detail, the sleeper positioning machine 6 includes a driving cylinder 601, a guide rail connecting seat 602, a first linear guide 603, a transverse positioning plate 604, a second linear guide 605 and a longitudinal positioning plate 606. Two driving cylinders 601 are provided and are both installed on the mounting frame 105. The piston rod of each driving cylinder 601 is connected to a guide rail connecting seat 602. Each guide rail connecting seat 602 is installed with a vertically extending first linear guide 603. Each first linear guide 603 is connected with a vertically arranged transverse positioning plate 604 for controlling the lifting and lowering of the transverse positioning plate 604 through the first linear guide 603. The lower end of each transverse positioning plate 604 is installed with The ball bearing 607 used to abut against the sleeper can then drive the transverse positioning plate 604 to rise and fall through the first linear guide 603 by extending and retracting the driving cylinder 601, and the ball bearing 607 at the lower end of the transverse positioning plate 604 is in contact with the sleeper to fine-tune the sleeper with a position deviation, so that the sleeper can be fine-tuned on the width line of the end sleeper platform 1; it should be noted that, preferably, the first linear guide 603 includes a first slide groove and a first slide rail, the first slide groove is fixedly connected to the mounting frame 105, the first slide rail is slidably connected in the first slide groove and fixedly connected to the upper part of the transverse positioning plate 604, so that when the driving cylinder 601 is actuated, the ball bearing 607 can be stably driven to rise and fall.

[0067] To be further detailed, each guide rail connecting seat 602 is installed with a second vertically extending linear guide rail 605, and the second linear guide rail 605 is connected to a longitudinal positioning plate 606 that is lifted and lowered under the control of the second linear guide rail 605, and the longitudinal positioning plate 606 is located on the side of the transverse positioning plate 604 away from the sleeper conveyor 5, and the lower part of the longitudinal positioning plate 606 facing the sleeper conveyor 5 is a first inclined surface, and when the first inclined surface and the sleeper conveyor 5 are located on the same horizontal plane, the spacing between the first inclined surface and the sleeper conveyor 5 gradually increases from top to bottom; the lower part of the longitudinal positioning plate 606 facing the sleeper conveyor 4 is a second inclined surface, and when the second inclined surface and the sleeper conveyor 4 are located on the same horizontal plane When the sleeper conveyor 5 is moved upward, the spacing between the second inclined surface and the sleeper conveyor 4 gradually increases from top to bottom. In practice, the extension and retraction of the driving cylinder 601 can drive the longitudinal positioning plate 606 to rise and fall through the second linear guide rail 605. The first inclined surface of the longitudinal positioning plate 606 is in contact with the side of the sleeper away from the sleeper conveyor 5. As the longitudinal positioning plate 606 descends, the sleeper is gradually pushed toward the sleeper conveyor 5. It should be noted that, preferably, the second linear guide rail 605 includes a second slide groove and a second slide rail. The second slide groove is fixedly connected to the mounting frame 105, and the second slide rail is slidably connected in the second slide groove and fixedly connected to the upper part of the longitudinal positioning plate 606, so that when the driving cylinder 601 is actuated, the longitudinal positioning plate 606 can be stably raised and lowered.

[0068] As a preferred implementation scheme in this embodiment, it needs to be further explained that the rail row positioning device 7 includes a fixed end receiving plate 701 and a movable end receiving plate 702 installed on the pillow separation platforms 1 at both ends of the pillow separation conveyor 5, and the upper end of the fixed end receiving plate 701 is fixedly connected with a fixed end limiting plate 703, and the side of the fixed end limiting plate 703 facing the rail row is the fixed end rail row limiting side, the lower part of the fixed end rail row limiting side is the fixed end vertical limiting surface in contact with the rail row surface, and the upper part of the fixed end rail row limiting side is the fixed end arc transition surface, the lower end of the fixed end arc transition surface is tangent to the fixed end vertical limiting surface, and the spacing between the fixed end arc transition surface and the rail row gradually decreases from top to bottom, and then when placing the rail row, the rail row first contacts with the fixed end arc transition surface, and then follows The fixed end arc transition surface falls onto the fixed end limit plate 703, which can avoid damage caused by collision; the upper end of the mobile end receiving plate 702 is fixedly connected with the mobile end limit plate 704, and the side of the mobile end limit plate 704 facing the track is the mobile end track limit side, the lower part of the mobile end track limit side is the mobile end vertical limit surface in contact with the track surface, and the upper part of the mobile end track limit side is the mobile end arc transition surface, the lower end of the mobile end arc transition surface is tangent to the mobile end vertical limit surface, and the spacing between the mobile end arc transition surface and the track gradually decreases from top to bottom, and then when placing the track, the track first contacts the mobile end arc transition surface, and then falls onto the mobile end limit plate 704 along the mobile end arc transition surface, which can avoid damage caused by collision.

[0069] To be further detailed, a movable end connecting beam 705 located above the pillow separation conveyor 5 is installed at one end of the pillow separation platform 1, and the movable end connecting beam 705 extends along the width direction of the pillow separation platform 1, and both ends of the movable end connecting beam 705 are slidably connected to the pillow separation platform 1 along the length direction of the pillow separation platform 1, so that the position between the fixed end receiving plate 701 and the movable end receiving plate 702 can be adjusted to improve practicality for different rail arrangements; the movable end receiving plate 702 is detachably connected to the movable end connecting beam 705 by an adjusting bolt, and a long strip hole extending along its length direction is provided on the movable end connecting beam 705, and the screw section of the adjusting bolt passes through the long strip hole and is threadedly connected to the movable end receiving plate 702, and the nut section of the adjusting bolt abuts against the movable end connecting beam 705, so that the position of the movable end receiving plate 702 can be adjusted by loosening the adjusting bolt a little, and then the placement position of the rail arrangement can be adjusted according to actual conditions, so that the positioning of the rail arrangement is more accurate.

[0070] As a preferred implementation scheme in this embodiment, it needs to be further explained that a plurality of sleeper limit assemblies 8 arranged along the length direction of the sleeper limit platform 1 are installed on both sides of the sleeper platform 1, and the sleeper limit assembly 8 includes a third linear guide rail 802 driven by an electric push rod 801, and a conical guide plate 803 is installed on the third linear guide rail 802, which moves up and down under its control, and the upper part of the conical guide plate 803 is a conical limit portion whose width gradually increases from top to bottom, such as Figure 2 As shown in the figure, the third linear guide rail 802 rises a little and then is connected to the lower end of the electric push rod 801. The electric push rod 801 drives the third linear guide rail 802 to rise and fall, so that the conical guide plate 803 can rise, and then all the sleepers are moved to abut against the conical guide plate 803, so that the spacing arrangement of all the sleepers can be accurately achieved.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-layer sleeper platform for railway construction, characterized in that: The invention comprises a sleeper distribution platform (1), on which a second elevator (2) is installed for hoisting multiple layers of sleepers onto the second elevator (2); on the sleeper distribution platform (1) below the second elevator (2), a first elevator (3), a sleeper conveyor (4) and a sleeper distribution conveyor (5) are installed in sequence along the length direction of the sleeper distribution platform (1), for moving the sleepers on the second elevator (2) layer by layer onto the sleeper conveyor (4) via the first elevator (3); and above the joint between the sleeper conveyor (4) and the sleeper distribution conveyor (5), a sleeper positioning machine (6) is installed for pushing the sleepers on the sleeper conveyor (4) onto the sleeper distribution conveyor (5) one by one via the sleeper positioning machine (6), so that all the sleepers can be moved to the sleeper distribution conveyor (5) at a certain position. The sleepers are arranged at intervals on the sleeper conveyor (5) as required; a rail row positioning device (7) is installed on the sleeper platform (1) above the sleeper conveyor (5) for positioning the rail row on the sleepers arranged at intervals through the rail row positioning device (7); the sleeper conveyor (4) comprises two sleeper conveyor platforms (401) extending along the length direction of the sleeper platform (1) and installed parallel to the sleeper platform (1); both ends of the sleeper conveyor platforms (401) are rotatably connected to sleeper conveyor sprockets, a double-row straight plate chain arranged in an annular manner is connected between the two sleeper conveyor sprockets, and one end of the sleeper conveyor (4) is installed with a sleeper conveyor drive motor for driving the sleeper conveyor sprockets on the two sleeper conveyor platforms (401) to rotate.

2. A multi-layer sleeper platform for railway construction according to claim 1, characterized in that: The sleeper distribution platform (1) is provided with two second vertical mounting plates (101) located above the sleeper conveyor (4); the second elevator (2) comprises a second elevator mounting beam (201) extending along the width direction of the sleeper distribution platform (1); the second elevator mounting beam (201) is slidably connected between the two second vertical mounting plates (101) along the vertical direction; the two second vertical mounting plates (101) are fixedly connected with second horizontal mounting seats (102) on the sides away from each other; the heights of the two second horizontal mounting seats (102) in the horizontal direction are both higher than the heights of the second elevator mounting beam (201) in the horizontal direction; A second lifting cylinder (202) is installed on the second horizontal mounting seat (102), a second U-shaped mounting seat (203) located above the second horizontal mounting seat (102) is installed on the telescopic rod of the second lifting cylinder (202), a second lifting sprocket (204) is rotatably connected inside the second U-shaped mounting seat (203), an upper end of the second lifting sprocket (204) is meshed with a middle part of a second lifting chain, one end of the second lifting chain is fixedly connected to the second horizontal mounting seat (102), and the other end of the second lifting chain is fixedly connected to an end of a second elevator mounting beam (201); Two second telescopic fork assemblies extending in the direction of the first elevator (3) are vertically slidably mounted on the second elevator mounting crossbeam (201), and a second telescopic fork driving mechanism for controlling the extension or contraction of the two second telescopic fork assemblies is also mounted on the second elevator mounting crossbeam (201).

3. A multi-layer sleeper platform for railway construction according to claim 2, characterized in that: The second telescopic fork assembly comprises a second U-shaped support groove (205) with a slide groove at the upper end and a second telescopic fork (206) slidably connected to the second U-shaped support groove (205), the second U-shaped support groove (205) is slidably connected to the second elevator mounting crossbeam (201), and the upper end surface of the second telescopic fork (206) and the upper end surface of the second U-shaped support groove (205) are located on the same horizontal plane; The end of the second U-shaped support groove (205) away from the first elevator (3) is rotatably connected to a second retracting guide wheel (207), the other end of the second U-shaped support groove (205) is rotatably connected to a second extending guide wheel (208) located below the second telescopic fork (206), the end of the second telescopic fork (206) away from the first elevator (3) is provided with a second telescopic fork fixing point (209), and the side of the second elevator mounting crossbeam (201) away from the first elevator (3) is provided with a second U-shaped support groove (20 5) A second crossbeam extension fixing point (210) at the top, a second retraction rope (211) bypassing the second retraction guide wheel (207) is connected between the second telescopic fork fixing point (209) and the second crossbeam extension fixing point (210); a second crossbeam retraction fixing point (212) is provided at the lower end of the second elevator mounting crossbeam (201), and a second extension rope (213) bypassing the second extension guide wheel (208) is connected between the second crossbeam retraction fixing point (212) and the second telescopic fork fixing point (209); The second telescopic fork driving mechanism comprises a second driving motor (214), a second telescopic fork driving rack (215) and a second telescopic fork driving gear driven by the second driving motor (214); the second telescopic fork driving rack (215) extends along the length direction of the second U-shaped support groove (205) and is fixedly connected to both second U-shaped support grooves (205); and the second telescopic fork driving rack (215) is meshed with the second telescopic fork driving gear.

4. A multi-layer sleeper platform for railway construction according to claim 1, characterized in that: Two first vertical mounting plates (103) are installed on the pillow-separating platform (1); the second elevator (2) comprises a first elevator mounting beam (301) extending along the width direction of the pillow-separating platform (1); the first elevator mounting beam (301) is slidably connected between the two first vertical mounting plates (103) along the vertical direction; the two first vertical mounting plates (103) are fixedly connected to a first horizontal mounting seat (104) on one side away from each other; the heights of the two first horizontal mounting seats (104) in the horizontal direction are both higher than the height of the first elevator mounting beam (301) in the horizontal direction; A first lifting cylinder (302) is installed on the first horizontal mounting seat (104), a first U-shaped mounting seat (303) located above the first horizontal mounting seat (104) is installed on the telescopic rod of the first lifting cylinder (302), a first lifting sprocket (304) is rotatably connected inside the first U-shaped mounting seat (303), an upper end of the first lifting sprocket (304) is meshed with a middle part of a first lifting chain (320), one end of the first lifting chain (320) is fixedly connected to the first horizontal mounting seat (104), and the other end of the first lifting chain (320) is fixedly connected to an end of the first elevator mounting beam (301); Two first telescopic fork assemblies extending in the direction of the second elevator (2) are vertically slidably disposed on the first elevator mounting crossbeam (301), and a second telescopic fork driving mechanism for controlling the extension or contraction of the two first telescopic fork assemblies is also mounted on the first elevator mounting crossbeam (301).

5. A multi-layer sleeper platform for railway construction according to claim 4, characterized in that: The first telescopic fork assembly comprises a first U-shaped support groove (305) with a slide groove at the upper end thereof and a first telescopic fork (306) slidably connected to the first U-shaped support groove (305), the first U-shaped support groove (305) being slidably connected to the first elevator mounting crossbeam (301), and the upper end surface of the first telescopic fork (306) and the upper end surface of the first U-shaped support groove (305) being located on the same horizontal plane; The end of the first U-shaped support groove (305) away from the first elevator (3) is rotatably connected to a first retracting guide wheel (307), the other end of the first U-shaped support groove (305) is rotatably connected to a first extending guide wheel (308) located below the first telescopic fork (306), the end of the first telescopic fork (306) away from the second elevator (2) is provided with a first telescopic fork fixing point (309), and the side of the first elevator mounting crossbeam (301) away from the second elevator (2) is provided with a first U-shaped support groove (30 5) A first beam extension fixing point (310) is disposed above the first telescopic fork fixing point (309), and a first retraction rope (311) is connected between the first beam extension fixing point (309) and the first beam extension fixing point (310) and bypasses the first retraction guide wheel (307); a first beam retraction fixing point (312) is disposed at the lower end of the first elevator mounting beam (301), and a first extension rope (313) is connected between the first beam retraction fixing point (312) and the first telescopic fork fixing point (309) and bypasses the first extension guide wheel (308); The second telescopic fork driving mechanism comprises a first driving motor (314), a first synchronous shaft (315), a first driving sprocket (316), a first passive sprocket (317), a first telescopic fork driving gear (318) and a first telescopic fork driving rack (319), wherein the first driving motor (314) is mounted on the first elevator mounting crossbeam (301), the first synchronous shaft (315) is rotatably connected to the first elevator mounting crossbeam (301), the first driving sprocket (316) is mounted on the motor shaft of the first driving motor (314), and the first passive sprocket (317) is mounted on the first telescopic fork driving gear (318) and the first telescopic fork driving rack (319). The wheel (317) is installed in the middle of the first synchronous shaft (315), and the first active sprocket (316) is connected to the first passive sprocket (317) by a chain; both ends of the first synchronous shaft (315) are fixedly connected with a first telescopic fork driving gear (318), and the two first U-shaped support grooves (305) are fixedly connected with a first telescopic fork driving rack (319) slidably connected to the first elevator mounting beam (301), and each first telescopic fork driving rack (319) is meshed with a first telescopic fork driving gear (318).

6. A multi-layer sleeper platform for railway construction according to claim 1, characterized in that: The pillow separation conveyor (5) comprises two pillow separation conveyor platforms (501) extending along the length direction of the pillow separation platform (1) and installed in parallel on the pillow separation platform (1); pillow separation conveyor sprockets are rotatably connected at both ends of the pillow separation conveyor platforms (501); a double-row straight plate chain arranged in an annular manner is connected between the two pillow separation conveyor sprockets; and a pillow separation conveyor driving motor for driving the pillow separation conveyor sprockets on the two pillow separation conveyor platforms (501) to rotate is installed at one end of the pillow separation conveyor (5).

7. A multi-layer sleeper platform for railway construction according to claim 1, characterized in that: The sleeper separation platform (1) is provided with a mounting frame (105) located above the joint between the sleeper conveyor (4) and the sleeper separation conveyor (5), and the sleeper positioning machine (6) is mounted on the mounting frame (105); The rail sleeper positioning machine (6) comprises a driving cylinder (601), a guide rail connecting seat (602), a first linear guide rail (603), a transverse positioning plate (604), a second linear guide rail (605) and a longitudinal positioning plate (606), wherein two driving cylinders (601) are provided and both are installed on the mounting frame (105), the piston rod of each driving cylinder (601) is connected to a guide rail connecting seat (602), each guide rail connecting seat (602) is installed with a vertically extending first linear guide rail (603), each first linear guide rail (603) is connected with a vertically arranged transverse positioning plate (604) for controlling the lifting and lowering of the transverse positioning plate (604) through the first linear guide rail (603), and the lower end of each transverse positioning plate (604) is installed with a ball bearing (607) for contacting the rail sleeper; A second linear guide rail (605) extending vertically is installed on each guide rail connecting seat (602). The second linear guide rail (605) is connected to a longitudinal positioning plate (606) which is lifted and lowered under the control of the second linear guide rail (605). The longitudinal positioning plate (606) is located on the side of the transverse positioning plate (604) away from the sleeper conveyor (5), and the lower part of the longitudinal positioning plate (606) facing the sleeper conveyor (5) is a first inclined surface. When the first inclined surface and the sleeper conveyor (5) are located on the same horizontal plane, the distance between the first inclined surface and the sleeper conveyor (5) gradually increases from top to bottom. The lower part of the longitudinal positioning plate (606) facing the sleeper conveyor (4) is a second inclined surface. When the second inclined surface and the sleeper conveyor (4) are located on the same horizontal plane, the distance between the second inclined surface and the sleeper conveyor (4) gradually increases from top to bottom.

8. The multi-layer sleeper platform for railway construction according to claim 1, characterized in that: The rail row positioning device (7) comprises a fixed end receiving plate (701) and a movable end receiving plate (702) installed on the pillow separation platforms (1) at both ends of the pillow separation conveyor (5); the upper end of the fixed end receiving plate (701) is fixedly connected with a fixed end limiting plate (703); the side of the fixed end limiting plate (703) facing the rail row is the fixed end rail row limiting side; the lower part of the fixed end rail row limiting side is the fixed end vertical limiting surface in contact with the rail row surface; the upper part of the fixed end rail row limiting side is the fixed end arc transition surface; the lower end of the fixed end arc transition surface is tangent to the fixed end vertical limiting surface; and the spacing between the fixed end arc transition surface and the rail row gradually decreases from top to bottom; The upper end of the mobile end receiving plate (702) is fixedly connected with a mobile end limiting plate (704), the side of the mobile end limiting plate (704) facing the rail row is the mobile end rail row limiting side, the lower part of the mobile end rail row limiting side is the mobile end vertical limiting surface in contact with the rail row surface, the upper part of the mobile end rail row limiting side is the mobile end arc transition surface, the lower end of the mobile end arc transition surface is tangent to the mobile end vertical limiting surface, and the spacing between the mobile end arc transition surface and the rail row gradually decreases from top to bottom; A movable end connecting beam (705) located above the pillow separating conveyor (5) is installed at one end of the pillow separating platform (1), the movable end connecting beam (705) extending along the width direction of the pillow separating platform (1), and both ends of the movable end connecting beam (705) are slidably connected to the pillow separating platform (1) along the length direction of the pillow separating platform (1); the movable end receiving plate (702) is detachably connected to the movable end connecting beam (705) via an adjusting bolt, and a long hole extending along the length direction of the movable end connecting beam (705) is provided on the movable end connecting beam (705), the screw section of the adjusting bolt passes through the long hole and is threadedly connected to the movable end receiving plate (702), and the nut section of the adjusting bolt abuts against the movable end connecting beam (705).

9. A multi-layer sleeper platform for railway construction according to claim 1, characterized in that: A plurality of rail sleeper limiting assemblies (8) arranged along the length direction of the rail sleeper limiting assemblies (1) are installed on both sides of the rail sleeper separating platform (1), the rail sleeper limiting assemblies (8) comprising a third linear guide rail (802) driven by an electric push rod (801), a conical guide plate (803) which moves up and down under the control of the third linear guide rail (802) is installed on the third linear guide rail (802), and the upper part of the conical guide plate (803) is a conical limiting portion whose width gradually increases from top to bottom.

Images