Anti-rollover rail locking wheel device of railway excavator

By employing a double-contact design between the limiting wheel and the rail, and a rolling bearing structure, the anti-tipping rail locking device for railway excavators solves the problems of tipping over and high resistance during excavator construction, thereby improving safety and efficiency and adapting to diverse installation needs.

CN121005022APending Publication Date: 2025-11-25JINING SHANKE CONSTR MASCH CO LTD
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Patent Information

Application Number
CN202511125064.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2025-11-25

AI Technical Summary

Technical Problem

Existing railway excavators are prone to tipping over during rail replacement work, increasing the safety risks of the construction. In addition, traditional rail locking devices have problems such as high movement resistance, complex installation, and high maintenance costs.

Method used

A rail-locking wheel device for preventing rollover of railway excavators was designed. It adopts a stable clamping structure with double contact between the limiting wheel and the rail, combined with rolling bearings and a drive device, to achieve rapid locking and unlocking. The modular structure can be adapted to different specifications of walking devices, reducing frictional resistance and simplifying the operation process.

Benefits of technology

It effectively prevents equipment from tipping over, reduces movement resistance, improves construction safety and equipment efficiency, reduces maintenance costs, adapts to real-time adjustment needs under complex working conditions, and achieves intelligent management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a railway excavator anti-rollover rail locking wheel device which comprises a rail locking mechanism, the rail locking mechanism comprises limiting wheels, and the limiting wheels are located on the left side and the right side of a rail and attached to the rail in a locked state; a locking connecting rod is mounted at the top of the limiting wheel and controls the limiting wheel, so that the limiting wheel can rotate up and down; and a driving device is mounted at the top of the locking connecting rod and drives the locking connecting rod. The anti-rollover device has the advantage of rollover prevention, and the problems that in the construction process of an existing railway excavator, rollover cannot be prevented, and the safety risk in the construction process is increased are solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway rail replacement, in particular to a railway excavator anti-rollover locking wheel device. BACKGROUND

[0002] With the frequent operation of trains, the rails will gradually wear out, especially at the bends and the parts where the wheels and the tracks contact most frequently. Long-term bearing of train weight will cause the rail material to fatigue, resulting in cracks and other problems, affecting the safety of the track. Therefore, it is necessary to replace the rails regularly. When the railway is replaced, special mechanical equipment such as rail replacement vehicles is usually used to perform tasks on the railway. These devices need to be moved and operated on the track, and the operating environment often has certain risks, especially when handling heavy steel rails, so a railway excavator anti-rollover locking wheel device is needed to prevent the rail replacement vehicle from rolling over. SUMMARY

[0003] The purpose of the present application is to provide a railway excavator anti-rollover locking wheel device. The present application has the advantage of preventing rollover, solving the problem that the existing railway excavator cannot prevent rollover during construction, increasing the safety risk during construction.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a railway excavator anti-rollover locking wheel device, comprising a locking mechanism, the locking mechanism comprising a limiting wheel, the limiting wheel being located on the left and right sides of the track and being in contact with the track in the locked state;

[0005] A locking link is installed on the top of the limiting wheel, which controls the limiting wheel to rotate up and down;

[0006] A driving device is installed on the top of the locking link to drive the locking link;

[0007] An installation bracket is installed on the locking link and the driving device.

[0008] As a preferred railway excavator anti-rollover locking wheel device of the present application, the limiting wheel comprises a wheel body, a protruding portion is provided at the bottom of the wheel body, the wheel body is movably connected to the side of the track head, and the protruding portion is movably connected to the bottom side of the track head.

[0009] As a preferred railway excavator anti-rollover locking wheel device of the present application, an installation rod is provided inside the wheel body, and a nut is threadedly provided on the top of the installation rod.

[0010] As a preferred railway excavator anti-rollover locking wheel device of the present application, the locking link comprises a lifting member, and a connecting rod assembly is provided at the bottom of the lifting member.

[0011] As a kind of railway excavator anti-rollover locking wheel device of the application, limiting wheel is installed at the bottom of connecting rod assembly, and connecting rod assembly drives limiting wheel.

[0012] As a kind of railway excavator anti-rollover locking wheel device of the application, the driving device includes driving device body, and the driving end of driving device body is provided with telescopic rod.

[0013] As a kind of railway excavator anti-rollover locking wheel device of the application, telescopic rod bottom is provided with mounting head, and mounting head is installed at the top of lifting piece.

[0014] As a kind of railway excavator anti-rollover locking wheel device of the application, the mounting frame includes frame body, and fixed plate is fixedly connected to the surface of frame body.

[0015] As a kind of railway excavator anti-rollover locking wheel device of the application, a plurality of fixing holes are formed in fixed plate.

[0016] As a kind of railway excavator anti-rollover locking wheel device of the application, locking mechanism is installed on walking device and located at the left and right sides of walking device.

[0017] Compared with prior art, the application has the following advantages:

[0018] 1、The application forms stable clamping structure through the double contact design of limiting wheel and track, effectively prevents rollover risk caused by gravity center deviation or external force on track, limiting wheel adopts wear-resistant material and rolling bearing structure, converts sliding friction into rolling friction, greatly reduces moving resistance, prolongs service life, driving device combines control unit to realize quick locking and unlocking, meets real-time adjustment demand under complex working conditions, especially when working in high-risk areas such as curve section and slope, can dynamically maintain equipment stability, in addition, the linkage design of locking mechanism and walking device makes excavator can flexibly convert between track and ground mode, avoids the limitation of traditional fixed locking device, further guarantees construction safety.

[0019] 2, The application adopts modular structure design, and the mounting frame cooperates with the fixed plate to arrange multiple holes, adapts to different specifications of the walking device, meets diversified installation requirements, the internal structure of the limiting wheel is convenient to disassemble and replace, maintenance cost and time are reduced, the linkage mechanism of the locking connecting rod and the driving device realizes efficient transmission through the cooperative movement of the telescopic rod and the connecting rod group, avoids the complex operation process of the traditional mechanical structure, significantly improves the locking and unlocking speed, the control unit supports manual and automatic mode switching, can meet the immediate operation demand of the on-site personnel, can be integrated with the excavator main control system to realize intelligent management, meanwhile, the rolling bearing design of the limiting wheel, the first bearing and the second bearing are supported in layers, ensures the reliability of long-term operation, reduces the failure rate, thereby improves the overall operation efficiency and economy of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the locking state of the application Figure One ;

[0021] Figure 2 is a schematic diagram of the locking state of the application Figure Two ;

[0022] Figure 3 is a schematic diagram of the unlocking state of the application Figure One ;

[0023] Figure 4 is a schematic diagram of the unlocking state of the application Figure Two ;

[0024] Figure 5 is a schematic diagram of the limiting wheel of the application

[0025] Figure 6 is a sectional view of the limiting wheel of the application

[0026] Figure 7 is a schematic diagram of the locking connecting rod mechanism of the application

[0027] Figure 8 is a schematic diagram of the driving device of the application

[0028] Figure 9 is a schematic diagram of the mounting frame of the application Figure One ;

[0029] Figure 10 is a schematic diagram of the mounting frame of the application Figure Two ;

[0030] Figure 11 is a schematic diagram of the mounting state of the application

[0031] Figure 12 is an enlarged view of A in the application Figure 11 .

[0032] In the figure: 1, locking mechanism; 101, limit wheel; 102, locking connecting rod; 103, driving device; 104, mounting bracket; 1011, wheel body; 1012, protruding part; 1013, mounting rod; 1014, nut; 1015, cover; 1016, first bearing; 1017, second bearing; 1018, sealing ring; 1021, lifting piece; 1022, first mounting hole; 1023, second mounting hole; 1024, first upper connecting rod; 1025, first lower connecting rod; 1026, second rotating shaft; 1027, second upper connecting rod; 1028, second lower connecting rod; 1029, first rotating shaft; 1031, driving device main body; 1032, mounting flange; 1033, telescopic rod; 1034, mounting head; 1041, bracket body; 1042, through hole; 1043, sliding groove; 1044, rotating hole; 1045, fixing hole; 1046, fixed plate; 1047, reinforcing rod; 2, walking device; 3, walking wheel; 4, excavator; 5, first rotating seat; 6, hydraulic rod; 7, first rotating plate; 8, second rotating seat; 9, second rotating plate. DETAILED DESCRIPTION

[0033] Please refer to Figures 1-12 A railway excavator anti-rollover locking wheel device, comprising a locking mechanism 1, the locking mechanism 1 comprising a limit wheel 101, the limit wheel 101 being located on both sides of the track and being in contact with the track in the locked state.

[0034] Further, the limit wheel 101 is provided with a locking connecting rod 102 at the top, and the locking connecting rod 102 controls the limit wheel 101 to rotate up and down.

[0035] Further, the locking connecting rod 102 is provided with a driving device 103 at the top, and the driving device 103 drives the locking connecting rod 102.

[0036] Further, the locking connecting rod 102 and the driving device 103 are provided with a mounting bracket 104.

[0037] Further, the driving device 103 is one of a hydraulic drive unit, a pneumatic drive unit, an electric drive unit or a mechanical drive unit.

[0038] Further, it further comprises a control unit, and the connection between the control unit and the driving device 103 includes but is not limited to hydraulic connection, gas connection and electrical connection, which is used to control the action of the driving device 103, and the control unit includes a manual control switch or an automatic control module connected with the railway excavator control system. To realize manual control or automatic control.

[0039] Further, the limiting wheel 101 comprises a wheel body 1011, the bottom of the wheel body 1011 is provided with a protruding part 1012, the wheel body 1011 is movably connected with the side of the head part of the track, the protruding part 1012 is movably connected with the bottom side of the head part of the track, the wheel body 1011 and the protruding part 1012 are made of wear-resistant material, which includes but is not limited to alloy steel, high manganese steel or metal material with surface hardening treatment.

[0040] Further, the wheel body 1011 is internally provided with a mounting rod 1013, the top of the mounting rod 1013 is threadedly sleeved with a nut 1014, the top of the wheel body 1011 is provided with a cover body 1015, the cover body 1015 is internally provided with a sealing ring 1018, and the sealing ring 1018 is sleeved on the surface of the mounting rod 1013.

[0041] Further, the inner wall of the wheel body 1011 is horizontally provided with a first bearing 1016 at the bottom, the inner ring of the first bearing 1016 is mounted on the boss at the bottom of the mounting rod 1013, and the inner wall of the wheel body 1011 is vertically provided with a second bearing 1017 at the top, and the inner ring of the second bearing 1017 is mounted on the surface of the mounting rod 1013.

[0042] Further, the locking connecting rod 102 comprises a lifting piece 1021, and the top of the lifting piece 1021 is provided with a first mounting hole 1022.

[0043] Further, the bottom of the lifting piece 1021 is provided with a connecting rod assembly, the limiting wheel 101 is mounted at the bottom of the connecting rod assembly, the connecting rod assembly drives the limiting wheel 101,

[0044] Further, the connecting rod assembly comprises a first rotating shaft 1029 rotatably connected with the lifting piece 1021, and the surface of the first rotating shaft 1029 is movably sleeved with a first upper connecting rod 1024 and a second upper connecting rod 1027.

[0045] Further, the bottom of the first upper connecting rod 1024 is rotatably connected with a first lower connecting rod 1025, the bottom of the second upper connecting rod 1027 is rotatably connected with a second lower connecting rod 1028, the opposite ends of the first lower connecting rod 1025 and the second lower connecting rod 1028 are rotatably connected with a second rotating shaft 1026, the first lower connecting rod 1025 and the second lower connecting rod 1028 are provided with a second mounting hole 1023, the mounting rod 1013 is mounted in the second mounting hole 1023, the nut 1014 is located at the top of the first lower connecting rod 1025 and the second lower connecting rod 1028, and the cover body 1015 is located at the bottom of the first lower connecting rod 1025 and the second lower connecting rod 1028.

[0046] Further, the driving device 103 comprises a driving device body 1031, a mounting flange 1032 is fixedly sleeved on the surface of the driving device body 1031, and a telescopic rod 1033 is arranged at the driving end of the driving device body 1031.

[0047] Further, the driving device body 1031 is one of a hydraulic rod, a pneumatic cylinder, an electric telescopic rod and a mechanical telescopic structure.

[0048] Further, the mounting rack 104 comprises a rack body 1041, the mounting flange 1032 is fixedly installed on the top of the rack body 1041, a through hole 1042 matched with the telescopic rod 1033 is formed in the top of the rack body 1041, and a sliding groove 1043 and a rotating hole 1044 are formed in the front and rear sides of the rack body 1041, the first rotating shaft 1029 is located in the inner cavity of the sliding groove 1043 and is in sliding connection with the sliding groove 1043, and the second rotating shaft 1026 is located in the inner cavity of the rotating hole 1044 and is in rotating connection with the rotating hole 1044.

[0049] Further, the rack body 1041 is fixedly connected with a reinforcing rod 1047 in the inside, and is fixedly connected with a fixed plate 1046 on the surface, and a plurality of fixed holes 1045 are formed in the fixed plate 1046.

[0050] When the track locking mechanism 1 locks the track, the driving device body 1031 drives the telescopic rod 1033 to move downwards, the telescopic rod 1033 drives the lifting piece 1021 to move downwards through the mounting head 1034, in the process of moving downwards, the first rotating shaft 1029 slides in the sliding groove 1043, and the first upper connecting rod 1024 and the second upper connecting rod 1027 are driven to rotate outwards, the first upper connecting rod 1024 and the second upper connecting rod 1027 drive the first lower connecting rod 1025 and the second lower connecting rod 1028 to rotate inwards, so as to drive the limiting wheel 101 in the second mounting hole 1023 to be clamped on the left and right sides of the track, after clamping, the wheel body 1011 contacts the side surface of the rail head, the protruding portion 1012 contacts the bottom of the rail head, when the excavator 4 drives the track locking mechanism 1 to move as a whole, the wheel body 1011 and the protruding portion 1012 roll on the left and right sides of the track, so as to prevent the excavator 4 from overturning on the track, when the wheel body 1011 rotates, the first bearing 1016 and the second bearing 1017 rotate on the surface of the mounting rod 1013, so as to convert sliding friction into rolling friction and reduce the resistance of movement, the top of the wheel body 1011 is provided with a cover body 1015 and a sealing ring 1018, which can prevent dust from entering the inner cavity of the wheel body 1011, and the mounting rod 1013 is installed in the second mounting hole 1023 through the cover body 1015 and the nut 1014, so as to facilitate the maintenance, repair and replacement of the limiting wheel 101 by the staff.

[0051] When the track locking mechanism 1 unlocks the track, the driving device body 1031 controls the telescopic rod 1033 to move upward and reset, thereby driving the bottom of the first upper connecting rod 1024 and the second upper connecting rod 1027 to rotate inward, and driving the bottom of the first lower connecting rod 1025 and the second lower connecting rod 1028 to rotate outward, thereby driving the limiting wheel 101 to be separated from the left and right sides of the track and releasing the limitation of the excavator 4.

[0052] Further, the track locking mechanism 1 is installed on the walking device 2 and located on the left and right sides of the walking device 2, and the walking wheels 3 are also rotatably connected to the left and right sides of the walking device 2, the walking wheels 3 and the track locking mechanism 1 are movably installed on the track, and the walking device 2 is installed on the left and right sides of the excavator 4 through the connecting assembly.

[0053] Further, the fixed plate 1046 is installed on the walking device 2 through the fixing hole 1045, and a plurality of fixing holes 1045 can be provided to adapt to different installation requirements.

[0054] Further, the connecting assembly comprises a first rotating seat 5, the first rotating seat 5 is installed on the walking device 2, a hydraulic rod 6 is rotatably connected inside the first rotating seat 5, a first rotating plate 7 and a second rotating seat 8 are rotatably connected to the piston of the hydraulic rod 6, the second rotating seat 8 is installed on the excavator 4, a second rotating plate 9 is rotatably connected to the bottom of the first rotating plate 7, one end of the second rotating plate 9 is rotatably connected inside the second rotating seat 8, and the other end is installed on the walking device 2.

[0055] When it is necessary to lift the walking device 2, the piston rod of the hydraulic rod 6 is extended, the first rotating plate 7 is driven to rotate downward, the first rotating plate 7 is rotated inside the second rotating seat 8 while driving the second rotating plate 9 to rotate upward, the other end of the second rotating plate 9 lifts the walking device 2 upward, so that the track locking mechanism 1 and the walking wheel 3 are lifted from the track at the same time, so that the excavator 4 can walk on the ground away from the track, when the excavator 4 needs to walk on the track, the walking wheel 3 and the track locking mechanism 1 are aligned with the track, the walking device 2 is lowered through the connecting assembly, so that the walking wheel 3 slides on the top of the track, and the track locking mechanism 1 locks or unlocks the track.

[0056] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A railway excavator anti-rollover locking wheel device, comprising a locking mechanism (1), characterized in that: the locking mechanism (1) comprises a limiting wheel (101) located on the left and right sides of the track and in contact with the track in the locked state; the limiting wheel (101) is provided with a locking connecting rod (102) at the top, which controls the limiting wheel (101) to rotate up and down; the locking connecting rod (102) is provided with a driving device (103) at the top, which drives the locking connecting rod (102); the locking connecting rod (102) and the driving device (103) are provided with a mounting bracket (104).

2. A roll prevention locking wheel device for a railway excavator according to claim 1, characterized in that: The limiting wheel (101) comprises a wheel body (1011) provided with a protruding portion (1012) at the bottom, and the wheel body (1011) is movably connected with the side of the track head, and the protruding portion (1012) is movably connected with the bottom side of the track head.

3. A roll prevention locking wheel device for a railway excavator according to claim 2, characterized in that: The wheel body (1011) is provided with an installation rod (1013) inside, and the top of the installation rod (1013) is provided with a nut (1014) through screwing.

4. A roll prevention locking wheel device for a railway excavator according to claim 3, characterized in that: The locking connecting rod (102) comprises a lifting piece (1021) provided with a connecting rod assembly at the bottom.

5. A roll prevention locking wheel device for a railway excavator according to claim 4, characterized in that: The limiting wheel (101) is installed at the bottom of the connecting rod assembly, and the connecting rod assembly drives the limiting wheel (101).

6. A roll prevention locking wheel device for a railway excavator according to claim 5, characterized in that: The driving device (103) comprises a driving device body (1031) provided with a telescopic rod (1033) at the driving end.

7. A roll prevention locking wheel device for a railway excavator according to claim 6, characterized in that: The telescopic rod (1033) is provided with a mounting head (1034) at the bottom, and the mounting head (1034) is installed at the top of the lifting piece (1021).

8. A roll prevention locking wheel device for a railway excavator according to claim 7, characterized in that: The mounting bracket (104) comprises a bracket body (1041) provided with a fixed plate (1046) fixedly connected to the surface.

9. A roll prevention locking wheel device for a railway excavator according to claim 8, characterized in that: A plurality of fixing holes (1045) are formed in the fixed plate (1046).

10. A roll prevention locking wheel device for a railway excavator according to claim 1, characterized in that: The locking mechanism (1) is installed on the walking device (2) and located on the left and right sides of the walking device (2).