CN217629200U - Automatic rail sawing machine - Google Patents

Abstract

The utility model discloses an automatic rail saw rail machine, its including be used for the centre gripping rail fixture and with the rail saw machine that fixture connects and the slope sets up. The rail saw main body comprises: the steel rail cutting device comprises a shell, a wheel assembly, a saw blade and a driving assembly, wherein the wheel assembly is connected with the shell in a rotating mode, the saw blade surrounds the wheel assembly and is used for cutting the steel rail, and the driving assembly is arranged on the shell and drives the wheel assembly to rotate. The drive assembly includes a first speed reducer connected with the wheel assembly and a motor connected with the first speed reducer. And a first torque sensor connected with the motor is arranged in the first speed reducer, monitors the torque on the wheel assembly, and controls the motor and the first speed reducer to drive the wheel assembly to change the cutting speed of the saw teeth. The utility model provides an automatic rail saw rail machine can realize the stable automatic cutout of saw blade, provides an automatic rail saw rail machine that the cutting is stable and cutting efficiency is high.

Description

Automatic rail sawing machine

Technical Field

The utility model relates to a mechanical cutting technical field especially relates to an automatic rail saw rail machine.

Background

The rail cutting machine is an indispensable machine for modern railway construction, and the quality of each performance of the rail cutting machine directly influences the operation quality, the operation safety and the labor intensity of operators. The rail cutting machine can be divided into an internal combustion rail cutting machine and an electric rail cutting machine according to the form of power, and can be divided into a movable rail cutting machine and a portable rail cutting machine according to the form of operation.

The railway steel rail in the prior art needs to be cut off along the vertical direction in the replacement and laying processes, and due to the shape, hardness and other reasons of the steel rail, hot cutting or grinding wheel type rail sawing machines mainly exist in the market at present, and the two cutting machines have the defects of high noise, much dust, low automation of manual lever control, short service life of cutting pieces, low cutting efficiency, potential safety hazards of manual operation and the like. In general, the feeding of the rail sawing machine moves through a preset feeding speed curve, and under the conditions of saw blade blockage, slippage, edge breakage, fracture and the like, the rail sawing machine still saws the rail according to the original feeding speed, cannot automatically adjust the feeding amount or automatically stop the rail sawing machine, and is easy to cause the phenomena of saw blockage and driving wheel slippage caused by overlarge resistance torque during cutting.

Accordingly, there is a need in the art for improvements.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, rail cutting machine among the prior art can not automatically regulated feed volume or automatic shutdown, and the phenomenon that the too big card saw that arouses of resistance moment that appears often appears when the cutting skids with the drive wheel easily appears, consequently, the utility model provides a can realize automatic cutout and simple laborsaving automatic rail saw rail machine is used for solving above-mentioned problem.

The utility model provides a technical scheme that technical problem adopted as follows:

the utility model provides an automatic rail saw rail machine, it includes:

the clamping mechanism is used for clamping the steel rail;

the rail sawing machine main body is connected with the clamping mechanism and is obliquely arranged;

the rail saw main body comprises:

a housing;

a wheel assembly rotatably connected with the housing;

a saw blade surrounding the wheel assembly and adapted to cut the rail;

the driving assembly is arranged on the shell and drives the wheel assembly to rotate;

the drive assembly includes:

a first speed reducer connected with the wheel assembly;

a motor connected to the first decelerator;

the first speed reducer is internally provided with a first torque sensor connected with the motor, the first torque sensor monitors the torque on the wheel assembly and controls the motor and the first speed reducer to drive the wheel assembly to change the cutting speed of the saw teeth.

In one implementation, the clamping mechanism includes:

a substrate;

the clamping jaw assembly is arranged on the base plate and is used for clamping the steel rail;

the jaw assembly includes:

the two clamping jaw shafts are rotatably connected with the base plate and are respectively positioned on two sides of the steel rail;

the two clamping jaw groups are respectively arranged on the two clamping jaw shafts;

the two clamping jaw connecting columns are respectively connected with the clamping jaws in the two clamping jaw groups;

the clamping jaw screw is in threaded connection with the two clamping jaw connecting columns;

the clamping jaw hand wheel is arranged at one end of the clamping jaw screw rod;

and one side of each clamping jaw in the clamping jaw group, which faces the steel rail, is provided with an arc part, and the arc parts are matched with the side surface of the top plate of the steel rail.

In one implementation, the clamping mechanism further comprises an adjusting assembly arranged on the base plate and above the clamping jaw, the adjusting assembly is used for connecting the rail sawing machine main body, and the adjusting assembly and the rail sawing machine main body are connected through a clamping plate.

In one implementation, the adjustment assembly includes:

the lifting motor is used for controlling the rail sawing machine body to move in the vertical direction;

the lifting screw is connected with the lifting motor;

the second speed reducer is arranged on the lifting motor, a second torque sensor connected with the motor is arranged in the second speed reducer, and the second torque sensor is used for monitoring the torque of the lifting screw and controlling the lifting motor to do variable speed motion;

the central sliding block is connected with the lifting screw rod and is driven by the lifting screw rod to do lifting motion;

the guide post penetrates through the central sliding block; and

locking a handle: the clamping device is arranged outside the central sliding block and used for adjusting the tightness between the central sliding block and the clamping plate.

In one implementation, the driving assembly further includes a motor capacitor box connected to the motor for filtering out high frequency interference generated during rotation of the motor.

In one implementation, the wheel assembly includes a tension wheel, a driving wheel, and a driven wheel arranged in a triangular structure, the saw blade is enclosed on the tension wheel, the driving wheel, and the driven wheel, and the driving assembly drives the saw blade to move, so that the saw teeth of the saw blade cut the steel rail.

In one implementation, the rail sawing machine main body further comprises a saw blade guide assembly, the saw blade guide assembly comprises sliding grooves respectively formed in two opposite ends of the driving wheel and the driven wheel, and the sliding grooves are used for enabling the saw blade to horizontally move and cut the steel rail.

In one implementation, the saw blade guide assembly further includes a rolling bearing disposed at the chute outlet.

In one implementation, the saw blade guide assembly further comprises guide pieces disposed on both sides of the saw blade.

In one implementation, the automatic rail saw further comprises a cooling device detachably connected with the rail saw main body, and a water outlet of the cooling device is arranged at one end of the saw blade guide assembly.

Has the advantages that: the utility model provides an automatic rail saw rail machine is through setting up fixture and the rail saw machine main part of connecting, and the fixture is assisted rail saw machine main part carries out the rail sawing operation, through be provided with in first reduction gear inside with the first moment sensor that the motor is connected, monitor the moment on the wheel subassembly with first moment sensor, control the motor with first reduction gear slows down the cutting and/or stops the cutting, control the resistance moment change that advances saw speed regulation and arouse because of the cutting width change to reach optimum cutting speed; meanwhile, the phenomenon that the clamping saw and the driving wheel slip caused by overlarge resistance moment often generated during cutting is prevented, the stable automatic cutting of the saw blade is realized, and the automatic rail sawing machine with stable cutting and high cutting efficiency is provided.

Drawings

Fig. 1 is a schematic view of the whole mechanism of the automatic rail sawing machine provided by the utility model;

FIG. 2 is a schematic view of another angle of the automatic rail saw of FIG. 1;

FIG. 3 is an exploded view of the automatic rail saw of FIG. 1;

FIG. 4 is a schematic view of the rail saw machine body shown in FIG. 1;

FIG. 5 is an enlarged detail view of area A shown in FIG. 4;

FIG. 6 is a schematic view of the clamping mechanism shown in FIG. 1;

fig. 7 is a detailed view of another angle of the clamping mechanism shown in fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the following description refers to the accompanying drawings and illustrates embodiments of the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of the description of the embodiments of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1-7, fig. 1 is a schematic view of an overall mechanism of an automatic rail saw according to the present invention; FIG. 2 is a schematic view of another angle of the automatic rail saw of FIG. 1; FIG. 3 is an exploded view of the automatic rail saw of FIG. 1; FIG. 4 is a schematic view of the rail saw machine body shown in FIG. 1; fig. 5 is an enlarged detail view of the area a shown in fig. 4, fig. 6 is a specific structural diagram of the clamping mechanism shown in fig. 1, and fig. 7 is a specific structural diagram of another angle of the clamping mechanism shown in fig. 6.

The utility model provides an automatic rail saw 100, it include fixture 10 and with the rail saw main part 20 that fixture 10 connects and the slope sets up, fixture 10 with the connection can be dismantled through the pinch-off blades 25 realization to rail saw main part 20 junction, can dismantle and install fixture 10 with rail saw main part 20 realizes pressing from both sides the regulation of tight and the position of cutting.

Specifically, the clamping mechanism 10 includes a base plate 110, a clamping jaw assembly 11 disposed on the base plate 110 and used for clamping the steel rail, and an adjusting assembly 12 used for controlling the clamping jaw assembly. The adjusting assembly 12 is used for connecting with the rail saw main body 20 and controlling the automatic sawing of the rail saw main body 20. Further, the jaw assembly 11 includes two jaw sets 111, a jaw screw 112, a jaw hand wheel 113, a jaw connecting column 114, and two jaw shafts 115. The two jaw shafts 115 are rotatably connected with the base plate 110 and are respectively located at two sides of the steel rail; the two jaw sets 111 are respectively arranged on the two jaw shafts 115; the two clamping jaw connecting columns 114 are respectively connected with the clamping jaws 111 in the two clamping jaw groups 111; the clamping jaw screw rod 112 is in threaded connection with the two clamping jaw 111 connecting columns; the clamping jaw hand wheel 113 is arranged at one end of the clamping jaw screw rod 112. Furthermore, one side of the clamping jaw 111 in the clamping jaw group facing the steel rail is provided with an arc part, and the arc part is matched with the side surface of the top plate of the steel rail. The clamping jaw hand wheel 113 is used for manually adjusting the position of the clamping jaw screw rod 112, and further controlling the opening and closing of the clamping jaw 111. In this embodiment, the clamping jaw assembly 11 fixes the rail to be cut, so that the rail cutting process is more stable.

Further, the adjusting assembly 12 includes a lifting motor 121 and a lifting screw 122 for controlling the vertical movement of the rail saw body 20, a central slider 123 disposed below the lifting motor 121, a guide post 124 and a locking handle 125. The lifting motor 121 and the lifting screw 122 are used together to drive the rail saw main body 20. Specifically, the lifting motor 121 is used for controlling the rail sawing machine main body 20 to move in the vertical direction; the lifting screw 122 is connected with the lifting motor 121; the central slider 123 is connected with the lifting screw 122 and is driven by the lifting screw 122 to perform lifting movement; the guide post 124 is arranged through the central sliding block 123; the locking handle 125 is disposed outside the central slider 124 for adjusting the tightness between the central slider 123 and the clamping plate 25. The locking handle 125 is correspondingly provided with a locking shaft (not shown), and the locking shaft 126 is used for connecting the clamping plate 25 on the rail saw main body 20. The locking handle 125 simultaneously provides for quick installation and removal of the clamping mechanism 10 and the rail saw body 20. The central slider 123 is driven by the lifting screw 122 to move vertically along the guide post 124, and the lifting motor 121 drives the lifting screw 122, that is, the lifting motor 121 can drive the rail saw main body 20 to move up and down, thereby controlling the supply of the saw blade 23. In other embodiments, the lift motor 121 may be replaced with a hydraulic cylinder. Further, the adjusting assembly 12 further includes a second speed reducer (not shown) connected to the lifting motor 121, a second torque sensor is disposed inside the second speed reducer and connected to the lifting motor 121, the second torque sensor is used for monitoring the torque of the lifting screw 122, and the second torque sensor controls the lifting motor 121 to perform a speed change motion. Specifically, when the second torque sensor adjusts the change of the resisting torque caused by the change of the cutting width by controlling the sawing speed, the optimal cutting speed is achieved.

Further, the rail saw body 20 includes a housing 21, a wheel assembly (not shown), a blade guide assembly 22, a blade 23 for cutting a rail, and a drive assembly 24 for driving the blade 23. The housing 21 is used for accommodating the saw blade guide assembly 22 and the saw blade 23, and the driving assembly 24 is arranged outside the housing 21.

Further, casing 21 is the panel beating cover casing, set up quick hasp on the casing 21, be convenient for realize fast casing 21's dismantlement. The shell 21 is made of aluminum alloy materials, and is high in strength, light in weight and convenient to carry and transport. The wheel assembly includes a tension wheel (not shown), a driving wheel (not shown) and a driven wheel (not shown) which are arranged in a triangular structure, and the housing 21 is correspondingly of a triangular structure. The saw blade 23 surrounds the tension wheel, the driving wheel and the driven wheel, and the driving assembly 22 drives the saw blade 23 to move, so that the saw teeth of the saw blade 23 cut the steel rail. Namely, the saw blade 23 is guided by the three guide wheels, i.e. the tension wheel, the driving wheel and the driven wheel, and the motor drives the driving wheel to rotate the saw blade 23.

The saw blade guide assembly 22 includes slide slots 224 respectively disposed at opposite ends of the driving wheel and the driven wheel, and the slide slots 224 are used for the saw blade 23 to move horizontally and cut the steel rail. The slide slot 224 is disposed at an opening of the housing 21 for providing travel guidance for the saw blade 23. The saw blade guide assembly 22 further comprises a rolling bearing 225, wherein the rolling bearing 225 is arranged at the outlet of the chute 224. The saw blade guide assembly 22 further comprises guide pieces 226, and the guide pieces 226 are disposed on both sides of the saw blade 23. When the saw blade 23 passes through the saw blade guide assembly 22, the rolling bearing 225 and the guide piece 226 are angularly adjusted to the extent that the cutting surface is perpendicular to the section of the rail.

It should be noted that, in other embodiments, the housing 21 may have other shapes, such as a quadrilateral, and the shape of the housing 21 may be adapted according to the number of guide wheels. Furthermore, the saw blade guide assembly 22 may include only one of the rolling bearing 225 or the guide piece 226.

In this embodiment, the saw blade guide assembly 22 further includes a guide link (not shown) and a handle screw 227 disposed on the slide slot 224, and the guide link and the handle screw 227 are used to adjust the width of the slide slot 224 so that the slide slot 224 and the saw blade 23 can be adapted. When the handle screw 228 is released, the guide link is allowed to slide along the slide slot 224, and adjusting the position of the guide link allows the slide slot 224 to move laterally.

Further, the driving assembly 24 is disposed outside the housing 21, the driving assembly 24 includes a motor 241, a motor capacitor box 242, and a first reducer 243, and a first torque sensor is disposed inside the first reducer 243. The motor capacitor box 242 is connected to the motor 241 and is configured to filter high-frequency interference generated during rotation of the motor 241. A first torque sensor inside the first reducer 243 controls the motor 241 and the first reducer 243 to drive the wheel assembly to realize cutting and/or stop cutting. Specifically, in the cutting process, the torque sensor in the first speed reducer 243 may monitor the torque on the driving wheel in real time, and when the saw blade 23 is jammed, slipped, chipped or broken, the first torque sensor sends a signal to the motor 241, so as to automatically adjust the feeding amount of the saw blade or automatically stop the saw blade. When the steel rail is cut, the cutting width is changed due to the appearance characteristics of the steel rail, and the corresponding resistance moment is also changed; the sawing speed is controlled through the first torque sensor, and the change of the resisting torque caused by the change of the cutting width is adjusted to achieve the optimal cutting speed; meanwhile, the phenomenon that the saw is clamped and the driving wheel slips due to overlarge resistance torque which often occurs during cutting is prevented. In addition, the housing 21 may be provided with a limit switch for detecting whether the housing 21 is tightly covered and the tension of the saw blade 23.

Further, the rail saw main body 20 further comprises a tension hand wheel 26 and a lead screw 27 which are arranged on the wheel assembly, and the clamping plate 25 is arranged above the saw blade 23. The tensioning handwheel 26 is further provided with a limit switch (not shown), and the limit switch is used for detecting the tensioning degree of the tensioning wheel 26. By rotating the tensioning hand wheel 26, the saw blade 23 is tensioned via the lead screw 27 and the guide rail 28. The tensioning handwheel 26 drives the screw rod 27 and drives the clamping plate 25 to clamp the steel rail to be cut.

In addition, the automatic rail saw 100 further comprises a cooling device 30 detachably connected to the rail saw main body 20, and a water outlet of the cooling device 30 is disposed at one end of the saw blade guide assembly 22. Specifically, the water outlet of the cooling device 30 is disposed at the outlet of the chute 224, and is used for supplying a cooling liquid to prevent the reduction of the annealing hardness of the saw teeth caused by the temperature increase of the saw blade 23 and the notched steel rail, and simultaneously prevent the dust pollution generated in the process of sawing the steel rail.

Generally speaking, the utility model provides an automatic rail saw 100 is through setting up fixture 10 and the rail saw main part 20 of connecting, is convenient for fixture 10 to assist rail saw main part 20 carries out the rail saw operation, through be provided with in the inside of first reduction gear with the first moment sensor that motor 241 is connected, with the moment on the first moment sensor monitoring wheel subassembly, control motor 241 and first reduction gear 243 slow down the cutting and/or stop the cutting, control the speed of sawing and adjust the change of moment of resistance because of cutting width change arouses, in order to reach optimum cutting speed; meanwhile, the phenomenon that the clamping saw and the driving wheel slip caused by overlarge resistance moment often generated during cutting is prevented, the stable automatic cutting of the saw blade is realized, and the automatic rail sawing machine with stable cutting and high cutting efficiency is provided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An automatic rail sawing machine, comprising:

the clamping mechanism is used for clamping the steel rail;

the rail sawing machine main body is connected with the clamping mechanism and is obliquely arranged;

the rail saw main body comprises:

a housing;

a wheel assembly rotatably connected with the housing;

a saw blade surrounding the wheel assembly and adapted to cut the rail;

the driving assembly is arranged on the shell and drives the wheel assembly to rotate;

the drive assembly includes:

a first speed reducer connected with the wheel assembly;

a motor connected to the first decelerator;

the first speed reducer is internally provided with a first torque sensor connected with the motor, the first torque sensor monitors the torque on the wheel assembly and controls the motor and the first speed reducer to drive the wheel assembly to change the cutting speed of the saw blade.

2. An automatic rail saw as defined in claim 1 wherein said clamping mechanism includes:

a substrate;

the clamping jaw assembly is arranged on the base plate and is used for clamping the steel rail;

the jaw assembly includes:

the two clamping jaw shafts are rotatably connected with the base plate and are respectively positioned on two sides of the steel rail;

the two clamping jaw groups are respectively arranged on the two clamping jaw shafts;

the two clamping jaw connecting columns are respectively connected with the clamping jaws in the two clamping jaw groups;

the clamping jaw screw is in threaded connection with the two clamping jaw connecting columns;

the clamping jaw hand wheel is arranged at one end of the clamping jaw screw rod;

and one side of each clamping jaw in the clamping jaw group, which faces the steel rail, is provided with an arc part, and the arc parts are matched with the side surface of the top plate of the steel rail.

3. The automatic rail saw as defined in claim 2, wherein said clamping mechanism further comprises an adjustment assembly for being disposed on said base plate above said clamping jaws, said adjustment assembly for being connected to said rail saw body, said adjustment assembly and said rail saw body being connected by a clamping plate.

4. The automatic rail saw machine of claim 3, wherein said adjustment assembly comprises:

the lifting motor is used for controlling the rail sawing machine body to move in the vertical direction;

the lifting screw is connected with the lifting motor;

the second speed reducer is arranged on the lifting motor, a second torque sensor connected with the motor is arranged in the second speed reducer, and the second torque sensor is used for monitoring the torque of the lifting screw and controlling the lifting motor to do variable speed motion;

the central sliding block is connected with the lifting screw rod and is driven by the lifting screw rod to do lifting motion;

the guide post penetrates through the central sliding block; and

locking a handle: the clamping plate is arranged outside the central sliding block and used for adjusting the tightness between the central sliding block and the clamping plate.

5. An automatic rail saw as defined in claim 1 wherein said drive assembly further includes a motor capacitor box connected to said motor for filtering high frequency interference generated during rotation of said motor.

6. An automatic rail saw as defined in claim 1, wherein said wheel assembly includes a tension wheel, a drive wheel and a driven wheel arranged in a triangular configuration, said saw blade being enclosed by said tension wheel, drive wheel and driven wheel, said drive assembly driving said saw blade to move and cause said saw teeth of said saw blade to cut the rail.

7. An automatic rail saw as defined in claim 6, wherein said saw body further includes a blade guide assembly, said blade guide assembly including a slot disposed at opposite ends of said drive wheel and said driven wheel, respectively, said slot adapted for horizontal movement of said blade and cutting of said rail.

8. An automatic rail saw as defined in claim 7, wherein said blade guide assembly further includes a rolling bearing disposed at said chute outlet.

9. An automatic rail saw as defined in claim 7, wherein said blade guide assembly further includes guide blades disposed on opposite sides of said blade.

10. The automatic rail saw as defined in claim 1, further comprising a cooling device detachably connected to said rail saw body, wherein a water outlet of said cooling device is disposed at one end of said blade guide assembly.

Images