Internal combustion rail cutting device

Abstract

The utility model relates to an internal combustion rail cutting device which comprises a rail cutting machine complete machine and a clamping tool, the rail cutting machine complete machine comprises a two-stroke engine and a cutting saw blade, and a transmission device is arranged between the two-stroke engine and the cutting saw blade; the clamping tool comprises a clamping base and a swing arm mechanism, a connecting shaft used for being connected with the whole rail cutting machine is installed on the swing arm mechanism, and a lubricating sleeve and a bearing are installed between the connecting shaft and the swing arm mechanism. Through the arrangement of the two-stroke engine and the transmission device, stable output of power can be guaranteed, the whole rail cutting machine and the swing arm mechanism on the clamping tool are integrally installed through the connecting shaft, meanwhile, the lubricating sleeve and the bearing are installed between the connecting shaft and the swing arm mechanism, and on the basis that reliable and stable torque is provided, the reliability of the whole rail cutting machine is improved. The jitter amount is further reduced, and the cutting precision is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of small railway maintenance equipment, in particular to an internal combustion rail cutting device. BACKGROUND

[0002] Railway often needs to cut the steel rail when laying new railway, line reconstruction, engineering rescue, line overhaul and track maintenance.

[0003] The existing internal combustion rail cutting machine has complex structure and high price, and the replacement of parts brings great trouble in operation and cost during maintenance.

[0004] Meanwhile, the structure of the existing part of the product rail cutting machine is too bulky, and it is difficult to ensure stable speed during operation, the cutting precision cannot meet the requirements, the work efficiency is low and faults are prone to occur. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide an internal combustion rail cutting device, which has the characteristics of exquisite device structure, stable output speed and high cutting precision, greatly improves the cutting working condition of the existing steel rail and improves the work efficiency.

[0006] In order to achieve the above purpose, the utility model provides an internal combustion rail cutting device, which comprises a rail cutting machine and a clamping tool, the rail cutting machine comprises a two-stroke engine and a cutting saw blade, and a transmission device is arranged between the two-stroke engine and the cutting saw blade.

[0007] The clamping tool comprises a clamping seat and a swing arm mechanism, a connecting shaft for connecting the rail cutting machine is installed on the swing arm mechanism, and a lubricating sleeve and a bearing are installed between the connecting shaft and the swing arm mechanism.

[0008] In an optional embodiment, the transmission device comprises a driving wheel and a driven wheel, the driving wheel is connected with the output shaft of the two-stroke engine, the driven wheel is connected with the connecting shaft of the cutting saw blade, the driving wheel and the driven wheel are both belt wheels, and a transmission belt is arranged between the belt wheels.

[0009] In an optional embodiment, the rail cutting machine comprises a machine shell, an installation sleeve is arranged on the machine shell, a thread is arranged on the inner side wall of the installation sleeve, and the connecting shaft is threadedly connected with the installation sleeve.

[0010] In an optional embodiment, the swing arm mechanism comprises an upper swing arm and a lower swing arm, a connecting sleeve is arranged on the top of the upper swing arm, and the connecting shaft is penetratingly installed on the connecting sleeve.

[0011] In an optional embodiment, the lubricating sleeve and the bearing are fixedly installed inside the connecting sleeve and located at two sides of the connecting sleeve in the axial direction respectively.

[0012] In an optional embodiment, the connecting shaft comprises a fixed part, a passing part and a screwing part, the inner ring of the bearing is clamped on the outer sidewall of the fixed part, the lubricating sleeve is in clearance fit with the passing part, and the screwing part is provided with external threads and is in screwing fit with the mounting sleeve.

[0013] In an optional embodiment, the diameter of the fixed part is smaller than that of the passing part, the tail end of the fixed part is extended out of the connecting sleeve, and a rotating seat and a fixing bolt are connected in sequence at the extended position, the rotating seat is connected with a rotating rod, and the rotating rod is arranged obliquely relative to the axial direction of the connecting shaft.

[0014] In an optional embodiment, the cutting saw blade is provided with a saw blade cover outside, and the saw blade cover is connected with the machine shell.

[0015] In an optional embodiment, a pin shaft is inserted and installed between the upper swing arm and the lower swing arm and between the clamping seat and the lower swing arm, an anti-dropping hook is connected to the clamping seat, and a measuring scale is arranged on the outer sidewall of the clamping seat.

[0016] In an optional embodiment, a tightening bolt is installed on the clamping seat, the tightening bolt penetrates through the sidewall of the clamping seat and abuts against the rail.

[0017] The two-stroke engine and the transmission device are arranged to ensure stable output of power, the two-stroke engine is specifically a two-stroke air-cooled engine, and has a low amount of shaking, and the transmission device arranged between the two-stroke engine and the cutting saw blade can protect the cutting saw blade to rotate stably, thereby improving cutting precision.

[0018] The connecting shaft is arranged between the whole rail cutting machine and the clamping tool upper swing arm mechanism, and the lubricating sleeve and the bearing are installed between the connecting shaft and the swing arm mechanism, so that the amount of shaking is further reduced on the basis of reliable and stable torque provided by the two-stroke engine, axial and radial movements are prevented during operation, and cutting precision is greatly improved.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope. Other related drawings can also be obtained by those of ordinary skill in the art without creative effort, based on these drawings.

[0021] Figure 1 Fig. 1 is a schematic diagram of the overall structure of the internal combustion rail cutting device in the present application;

[0022] Figure 2 Fig. 2 is a schematic diagram of the structure of the rail cutting machine in the present application;

[0023] Figure 3 Fig. 3 is a schematic diagram of the side view structure of the clamping tool in the present application;

[0024] Figure 4 Fig. 4 is a schematic diagram of the cooperation structure of the clamping tool and the rail in the present application;

[0025] Figure 5 Fig. 5 is a schematic diagram of the structure of the connecting shaft installation part in the present application.

[0026] Fig. 1 is a schematic diagram of the overall structure of the internal combustion rail cutting device in the present application;

[0027] 1 - rail cutting machine; 11 - two-stroke engine; 12 - cutting saw blade; 13 - driving wheel; 14 - driven wheel; 15 - transmission belt; 16 - machine shell; 17 - mounting sleeve; 18 - saw blade cover;

[0028] 2 - clamping tool; 21 - clamping seat; 22 - swing arm mechanism; 22a - upper swing arm; 22b - lower swing arm; 23 - connecting sleeve; 24 - pin shaft; 25 - anti-escape hook; 26 - measuring scale; 27 - tightening bolt;

[0029] 3 - connecting shaft; 31 - fixed part; 32 - through connection part; 33 - threaded part;

[0030] 4 - lubricating sleeve;

[0031] 5 - bearing;

[0032] 6 - rotating seat; 61 - rotating lever;

[0033] 7 - fixing bolt. DETAILED DESCRIPTION

[0034] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer", etc. are based on the positions or location relationships shown in the drawings or the positions or location relationships in which the products of the present application are usually placed, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] The internal combustion rail cutting device in the present application mainly performs rail cutting operation, specifically by improving the cutting function structure of the rail cutting machine and the connecting part structure, optimizing the working condition of power output, reducing the shaking of the rail cutting device in the operation process under the premise of ensuring stable rotation, and improving the overall cutting precision of the rail cutting device.

[0038] Referring to Figure 1 , and combining Figures 2-5 , the internal combustion rail cutting device in the present application, the main structure includes a rail cutting machine 1 arranged in a split manner and a clamping tool 2, mainly improves the power output device, transmission device of the rail cutting machine as a whole and the connecting part structure of the rail cutting machine as a whole and the clamping tool 2, so as to reduce the shaking of the connecting part on the basis of stable output of rotary torque, keep the stable running state of the overall device in the cutting process, and provide cutting precision.

[0039] Specifically, the two-stroke engine 11 is specifically a two-stroke air-cooled engine, which has the characteristics of simple structure, stable operation, convenient maintenance, and large power density, can provide stable rotating speed, improves the cutting speed, effectively reduces the overall volume, and reduces the weight.

[0040] By setting the transmission device between the two-stroke engine 11 and the cutting saw blade 12, the cutting saw blade 12 can be driven to rotate stably under the condition of stable output rotation speed, thereby improving the stability and reliability of the cutting function.

[0041] The clamping tool 2 comprises a clamping seat 21 and a swing arm mechanism 22, the clamping seat 21 can reliably clamp and fix the rail, and the swing arm mechanism 22 can flexibly adjust the cutting angle of the rail cutting machine 1 relative to the rail, so as to effectively cut the rail.

[0042] The swing arm mechanism 22 is provided with a connecting shaft 3 for connecting the rail cutting machine 1, and the connecting shaft 3 is mainly used to realize the structural connection between the rail cutting machine 1 and the clamping tool 2, and constitutes the whole of the internal combustion rail cutting device.

[0043] By installing the lubricating sleeve 4 and the bearing 5 between the connecting shaft 3 and the swing arm mechanism 22, the shaking amount of the connecting part between the rail cutting machine 1 and the clamping tool 2 can be further controlled, the coaxial connection degree is enhanced, the axial and radial movement during the cutting operation is reduced, and the cutting precision is improved.

[0044] Based on the fact that the bearing 5 itself has a gap, the size of the gap directly affects the final cutting precision, by adopting the cooperation mode of the lubricating sleeve 4 and the bearing 5, the shaking amount of each pin shaft 24 part of the clamping tool 2 is effectively reduced, and the cutting precision is effectively improved.

[0045] In one specific embodiment, the transmission device comprises a driving wheel 13 and a driven wheel 14, specifically, the driving wheel 13 is connected with the output shaft of the two-stroke engine 11, and the driven wheel 14 is connected with the connecting shaft 3 of the cutting saw blade 12, so that the output power of the two-stroke engine 11 can be transmitted to the cutting saw blade 12 through the belt, and the normal rotation of the cutting saw blade 12 is driven.

[0046] From the transmission angle, the driving wheel 13 and the driven wheel 14 in the embodiment are both belt pulleys, and a transmission belt 15 is arranged between the belt pulleys to effectively transmit power.

[0047] From the perspective of the connection of the two split bodies, the rail cutting machine 1 comprises a machine shell 16, the machine shell 16 is provided with a mounting sleeve 17, the inner side wall of the mounting sleeve 17 is provided with a thread, and the connecting shaft 3 mounted on the swing arm mechanism 22 is screw-connected with the mounting sleeve 17, so as to realize the overall assembly of the internal combustion rail cutting device.

[0048] The structure that the connecting shaft 3 is screw-connected on the mounting sleeve 17 greatly facilitates the disassembly and assembly operation, and after the cutting of the rail is completed, the main body structure can be quickly separated, and the operation efficiency is improved.

[0049] In another specific embodiment, from the perspective of connection assembly, the swing arm mechanism 22 comprises an upper swing arm 22a and a lower swing arm 22b, and the top of the upper swing arm 22a is provided with a connection sleeve 23, and the connection shaft 3 is installed on the connection sleeve 23.

[0050] Preferably, in this embodiment, the connection shaft 3 is rotatably fixedly installed on the connection sleeve 23, and after the two main body structures are assembled through the connection shaft 3, the connection sleeve 23 is in center connection with the mounting sleeve 17 and tightly fits, thereby maintaining the structural strength and stability of the cutting machine 1 and the clamping tool 2 after assembly.

[0051] During the connection process, the connection shaft 3 is rotated in situ in the connection sleeve 23, so that the threaded connection part of the connection shaft 3 is separated from or inserted into the mounting sleeve 17, thereby realizing the disassembly and assembly of the two main body structures.

[0052] Based on the angle of in-situ rotation, the lubricating sleeve 4 and the bearing 5 are fixedly installed inside the connection sleeve 23 and are located on both sides of the connection sleeve 23 in the axial direction. The lubricating sleeve 4 is in the form of a lubricating copper sleeve, and the bearing 5 is a high-precision bearing 5. The connection shaft 3 is installed on the radial inner side of the lubricating copper sleeve and the high-precision bearing 5. In combination with the penetration of the connection shaft 3 in the connection sleeve 23, the coaxiality of the connection shaft 3 in the connection sleeve 23 can be ensured, and further in combination with the threaded connection of the connection shaft 3 in the mounting sleeve 17, the axial and radial movement of the cutting machine 1 and the clamping tool 2 can be fundamentally avoided, thereby ensuring the stability of the whole machine operation to the greatest extent on the premise of stable rotation speed output of the two-stroke engine 11, and greatly improving the cutting accuracy.

[0053] Preferably, the connection shaft 3 in this embodiment comprises a fixed part 31, a penetration part 32 and a threaded part 33 arranged from near to far, the fixed part 31 is mainly used to rotatably fix the tail end of the connection shaft 3 in the connection sleeve 23, the penetration part 32 is mainly used to penetrate and install in the connection sleeve 23, and the threaded part 33 is used for threaded connection with the mounting sleeve 17 provided on the machine shell 16.

[0054] During the disassembly and assembly process, the connection shaft 3 is rotated in situ in the connection sleeve 23, and the threaded part 33 is disassembled and assembled with the internal threads of the mounting sleeve 17, which is beneficial to the quick disassembly and assembly of the two main body structures.

[0055] Further, the inner ring of the bearing 5 is installed on the outer side wall of the fixed part 31, and the outer ring of the bearing 5 is fixed on the inner side of the connection sleeve 23, so as to ensure the in-situ rotation of the connection shaft 3 in the connection sleeve 23 and effectively install the connection shaft 3 in the connection sleeve 23 through the bearing 5.

[0056] The lubricating sleeve 4 is in clearance fit with the connecting portion 32, and a limiting conical surface is arranged between the connecting portion 32 and the screwing portion 33 to prevent the connecting shaft 3 from moving axially and further prevent the connecting shaft 3 from being separated from the connecting sleeve 23. The limiting conical surface is tapered and then transitions to the screwing portion 33. The lubricating sleeve 4 is fixedly installed on the side of the connecting sleeve 23 and is in clearance fit with the connecting portion 32, so as to prevent the connecting shaft 3 from moving greatly in the radial direction.

[0057] The screwing portion 33 is provided with external threads and can be screwed with the mounting sleeve 17. Through the specific composition of the connecting shaft 3, the coaxiality of the connecting shaft 3 and the connecting sleeve 23 can be ensured to the greatest extent, and the movement of the connecting shaft 3 in the axial and radial directions can be fundamentally avoided, thereby ensuring the stability of the overall structure of the rail cutting machine 1 and the clamping tool 2 after they are assembled.

[0058] The fixing portion 31 in the embodiment is mainly used for connecting the connecting shaft 3 and the bearing 5, and connecting with an external screwing assembly, thereby facilitating the disassembly and rotation of the connecting shaft 3.

[0059] Specifically, the diameter of the fixing portion 31 is smaller than that of the connecting portion 32. The tail end of the fixing portion 31 extends from the connecting sleeve 23, and the rotating seat 6 and the fixing bolt 7 are connected in sequence at the extending position. Specifically, the extending position of the fixing portion 31 from the connecting sleeve 23 is provided with external threads. The rotating seat 6 is tightly installed on the fixing portion 31 by the fixing bolt 7, so that the fixing portion 31, the rotating seat 6 and the fixing bolt 7 are combined as an integral structure.

[0060] The rotating seat 6 is connected with a rotating rod 61, which is arranged obliquely relative to the axial direction of the connecting shaft 3, thereby facilitating the rotation operation. During the rotation, the rotating rod 61 drives the rotating seat 6 and the connecting shaft 3 to rotate in situ relative to the outer ring of the bearing 5, thereby realizing the disassembly and assembly of the connecting shaft 3 and the mounting sleeve 17.

[0061] The cutting saw blade 12 is provided with a saw blade cover 18 on the outside, and the saw blade cover 18 is connected with the machine shell 16. The upper swing arm 22a and the lower swing arm 22b, and the clamping seat 21 and the lower swing arm 22b are connected by pin shafts 24 in a plug-in manner. The connecting shaft 3 is fixed in the connecting sleeve 23 of the upper swing arm 22a, so that the connecting shaft 3 can only rotate and cannot move horizontally.

[0062] The clamping seat 21 is provided with a screw bolt 27 penetrating through the side wall of the clamping seat 21 and abutting against the rail, so that the screw bolt 27 can fix the clamping tool 2 to the rail. The clamping seat 21 is connected with an anti-falling hook 25, so that the safety of personnel can be ensured when the device is accidentally dropped. A measuring scale 26 is arranged on the outer side wall of the clamping seat 21, so that the clamping efficiency can be improved. The safety of the device and the convenience of operation are effectively improved as a whole. The rail cutting machine 1 is further provided with a safety switch and a throttle, so that the switching operation can be facilitated.

[0063] In the specific use process, the clamping tool 2 is clamped to the rail, the bottom plane of the clamping tool 2 is completely attached to the rail top surface, and the side plane is completely attached to the rail head side surface. The measuring scale 26 is positioned, and the screw bolt 27 is tightened and fixed. The anti-falling hook 25 naturally droops, and the connecting shaft 3 of the upper swing arm 22a is threadedly connected with the whole machine. The engine is started, the safety switch is pressed, the throttle is increased, and the cutting work is performed.

[0064] After the cutting is completed, the engine is turned off, the clamping tool 2 is separated from the rail cutting machine 1, and the clamping tool 2 is removed to complete the cutting operation.

[0065] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0066] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An internal combustion rail cutting device, characterized by, The utility model relates to a cutting rail machine and a clamping tool, the cutting rail machine comprises a two-stroke engine and a cutting saw, and a transmission device is arranged between the two-stroke engine and the cutting saw. The clamping tool comprises a clamping seat and a swing arm mechanism, a connecting shaft for connecting the cutting rail machine is arranged on the swing arm mechanism, and a lubricating sleeve and a bearing are arranged between the connecting shaft and the swing arm mechanism. The transmission device comprises a driving pulley and a driven pulley, the driving pulley is connected with an output shaft of the two-stroke engine, the driven pulley is connected with a connecting shaft of the cutting saw, and the driving pulley and the driven pulley are both belt pulleys, and a transmission belt is arranged between the driving pulley and the driven pulley.

2. The internal combustion rail cutting device according to claim 1, characterized in that, The cutting rail machine comprises a machine shell, an installation sleeve is arranged on the machine shell, a thread is arranged on the inner side wall of the installation sleeve, and the connecting shaft is threadedly connected with the installation sleeve.

3. The internal combustion rail cutting device of claim 1, wherein The swing arm mechanism comprises an upper swing arm and a lower swing arm, a connecting sleeve is arranged on the top of the upper swing arm, and the connecting shaft is penetratingly arranged on the connecting sleeve.

4. The internal combustion rail cutting device according to claim 3, characterized in that The lubricating sleeve and the bearing are fixedly arranged in the connecting sleeve and are respectively located on both sides of the connecting sleeve in the axial direction.

5. The internal combustion rail cutting device of claim 4, wherein, A pin shaft is inserted and arranged between the upper swing arm and the lower swing arm and between the clamping seat and the lower swing arm, an anti-disengagement hook is connected to the clamping seat, and a measuring scale is arranged on the outer side wall of the clamping seat.

6. The internal combustion rail cutting device of claim 4, wherein The connecting shaft comprises a fixed portion, a penetrating portion and a threaded portion, the inner ring of the bearing is clamped on the outer side wall of the fixed portion, the lubricating sleeve is gap-fitted with the penetrating portion, and the threaded portion is provided with external threads and is threadedly fitted with the installation sleeve.

7. The internal combustion rail cutting device of claim 4, wherein The diameter of the fixed portion is smaller than the diameter of the penetrating portion, the tail end of the fixed portion is protruded from the connecting sleeve, and a rotating seat and a fixing bolt are sequentially connected to the protruded part, a rotating rod is connected to the rotating seat, and the rotating rod is arranged obliquely relative to the axial direction of the connecting shaft.

8. The internal combustion rail cutting device of claim 7, wherein, An outer cover is arranged on the outer side of the cutting saw, and the outer cover is connected with the machine shell.

9. The internal combustion rail cutting device of claim 4, wherein A rotating bolt is arranged on the clamping seat, the rotating bolt penetrates through the side wall of the clamping seat and abuts against the rail.

10. The internal combustion rail cutting device according to any one of claims 1 to 9, characterized in that, ​

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