CN106217185A - Steel rail profile belt grinder - Google Patents

Abstract

The invention provides a rail profiling abrasive belt grinding machine. It mainly includes: frame, abrasive belt, driving wheel, contact wheel, traveling wheel and internal combustion engine; the abrasive belt is wound on the outer circle of the driving wheel and contact wheel in turn; the traveling wheel is installed at the support position on both sides of the lower end of the frame; Walk along the rails; the internal combustion engine is located above the frame, and the internal combustion engine is connected to the driving wheel through a belt; a tensioning mechanism is set between the driving wheel and the contact wheel. The rail profiling abrasive belt grinding machine of the present invention adopts the abrasive belt as the grinding tool, and the rubber layer in the contact wheel and the characteristics of the abrasive belt make the abrasive belt and the rail in flexible contact during the grinding operation, which can reduce the influence of the vibration of the grinding machine on the grinding quality ;The tensioning device is installed between the driving wheel and the contact wheel, which simplifies the overall structure; when grinding and applying pressure, only the contact wheel moves up and down, which is easy to operate.

Description

Rail Profile Abrasive Belt Grinding Machine

technical field

The invention relates to the technical field of railway maintenance machinery, in particular to a rail profiling abrasive belt grinder.

Background technique

After on-line welding and repairing of railway rails, the welds need to be polished to make the surface of the rails smooth. In the traditional welding seam grinding operation, grinding wheel grinding machines are often used for grinding rail welds. Due to the rigid contact between the grinding wheel and the rail, the impact on the rail is large, the vibration is large, and the grinding quality is easily affected; the contact area between the grinding wheel and the weld is small, and the grinding wheel wears quickly. , the height of the grinding wheel needs to be adjusted continuously during the grinding process; at the same time, the grinding wheel grinding needs to rely on the envelope of a small straight line to approach the target profile curve of the rail, the grinding efficiency is low, and the labor intensity of the operator is high.

Contents of the invention

An embodiment of the present invention provides a rail profiling abrasive belt grinder for effectively grinding weld seams of railway rails.

In order to achieve the above object, the present invention adopts the following technical solutions.

A rail profiling abrasive belt grinding machine, comprising: a frame, an abrasive belt, a driving wheel, a contact wheel, a traveling wheel and an internal combustion engine, the abrasive belt is wound on the outer circle of the driving wheel and the contact wheel in turn, and the internal combustion engine is located at Above the frame, the internal combustion engine is connected with the driving wheel through a belt; the traveling wheels are installed at the support positions on both sides of the lower end of the frame, and the traveling wheels walk along the rails, and the abrasive belt is used as a grinding tool for The rails are ground.

Further, a tensioning mechanism is set between the driving wheel and the contact wheel, and a tensioning handle and a rotating block are arranged inside the tensioning mechanism, and the rotating block is connected with the outrigger and the spring, and the tensioning mechanism of the rotating tensioning mechanism Tightening the handle drives the rotating block to rotate, and the outrigger and spring complete the telescopic operation.

Further, when the tensioning handle is in a vertical state, the spring is in a relaxed state, and the abrasive belt is in a relaxed state; when the tensioning handle is in a horizontal state, the rotating block pushes the extension arm, The distance between the contact wheel and the driving wheel is enlarged, the spring is in a stretched state, and the abrasive belt is in a tensioned state.

Further, the tensioning handle adopts a semi-cylindrical shape, and the corresponding position of the tensioning handle is provided with arc slots.

Further, a lifting and pressing mechanism is fixed above the frame, and the lifting and pressing mechanism includes a hand wheel, a screw, a connecting rod, and an arc-shaped groove, and the screw and the connecting rod are connected through a rotating pair , the connecting rod slides along the arc-shaped groove, and the connecting rod is fixedly connected with the contact wheel shaft.

Further, the lifting and pressing mechanism adopts a differential helical structure.

Further, a layer of rubber is installed on the outer circumference of the contact wheel, and the outer circumference of the rubber layer is concave.

Further, a digital display is installed on the upper end of the frame, the digital display is connected with the lead screw, and the digital display displays the deflection angle and the lifting pressure depth of the rail profiling abrasive belt grinder.

Further, an armrest is erected on the frame, and an angular displacement sensor is installed on the armrest, and the angular displacement sensor is used to determine the deflection angle of grinding.

Further, a transparent protective cover is provided outside the rail profiling abrasive belt grinder.

As can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention, the rail profiling abrasive belt grinder of the embodiments of the present invention uses an abrasive belt as a grinding tool, and the rubber layer in the contact wheel and the characteristics of the abrasive belt itself make the abrasive belt and the rail It is flexible contact during the grinding operation, which can reduce the impact of the vibration of the grinding machine on the grinding quality; the tension device is installed between the driving wheel and the contact wheel, which simplifies the overall structure; the structure of the grinding machine ensures that only contact The wheels move up and down for easy operation.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will become apparent from the description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is an axonometric view of a rail profiling abrasive belt grinder provided by an embodiment of the present invention;

Fig. 2 is a front view of a rail profiling abrasive belt grinder provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a pressure applying mechanism of a rail profiling abrasive belt grinder provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of an abrasive belt tensioning mechanism of a rail profiling abrasive belt grinder provided by an embodiment of the present invention.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and/or components, but does not exclude 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. Additionally, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein Explanation.

In order to facilitate the understanding of the embodiments of the present invention, several specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

The embodiment of the present invention provides a rail profiling abrasive belt grinding machine, which includes a frame, an abrasive belt, a driving wheel, a contact wheel, a running wheel, an internal combustion engine, a tensioning mechanism, and a lifting and pressing mechanism. The abrasive belt is wound around the driving wheel in turn. , on the outer circle of the contact wheel; a tensioning mechanism is arranged between the driving wheel and the contact wheel; the internal combustion engine is located above the frame and is connected with the driving wheel through a belt; the traveling wheel is installed on both sides of the lower end of the frame to support position, the traveling wheels travel along the rails. The abrasive belt is used as a grinding tool to grind the rail.

A layer of rubber is installed on the outer circle of the contact wheel, and the outer circle of the rubber layer is in a concave shape; a transparent protective cover is provided outside the entire rail profiling abrasive belt grinder.

The tensioning mechanism is located between the driving wheel and the contact wheel. There is a rotating block inside the tensioning mechanism. The rotating block is connected to the outrigger and the spring. Rotating the handle of the tensioning mechanism drives the rotating block to rotate, and at the same time cooperates with the outrigger and the spring Complete the scaling operation.

The lifting and pressing mechanism is fixed on the top of the frame, including a hand wheel, a screw, a connecting rod, and an arc-shaped groove; the screw and the connecting rod are connected by a rotating pair, the connecting rod slides along the arc-shaped groove, and the connecting rod It is fixedly connected with the contact axle.

A rubber layer is installed on the outer circle of the contact wheel, and the outer circle of the rubber layer is in a concave shape; the outer circle of the abrasive belt grinding device is provided with a transparent protective cover.

The digital display is installed on the upper end of the frame, the digital display is connected with the lead screw, and the digital display can display in real time the deflection angle and the lifting pressure application depth of the grinding device.

Fig. 1 is an axonometric view of a rail profiling abrasive belt grinder provided by an embodiment of the present invention. The grinding machine walks on the steel rail (1) by 2 insulating traveling wheels (8). Frame (2) is positioned on the traveling wheel (8), is the main part of grinder, and internal combustion engine (7) is fixed on the frame top, is connected with driving wheel main shaft (9) by belt (16). The driving wheel (9) is connected with the contact wheel (12) by an abrasive belt (11), and a tensioning device (10) is arranged between the driving wheel (9) and the contact wheel (12).

The lifting and pressing mechanism is provided with a handwheel (5), and the handwheel (5) is used to adjust the grinding feed rate. An inverted U-shaped armrest (3) is erected on the frame (2), and an angular displacement sensor (6) is installed on the armrest (3), which is used to determine the deflection angle of grinding. Handrail (3) can be convenient for the workers on both sides to control the machine, and the whole grinding machine can be operated to incline 90°. The contact wheel (12) adopts a concave structure, which is similar in shape to the profile of the steel rail, so as to reduce the deformation times of the abrasive belt during the grinding process and improve the service life. A digital display (4) is arranged on the leading screw.

Fig. 2 shows a front view and a rear view of a rail profiling grinding machine provided by an embodiment of the present invention. Internal combustion engine (7) is connected with driving wheel main shaft pulley (15) by belt (16), and is provided with clutch between internal combustion engine and belt pulley. Above the contact wheel (12) is provided with a vertical lifting and pressing mechanism to control the correct contact and force application between the contact wheel (12) and the rail. The lifting and pressing mechanism mentioned above adopts a differential spiral structure with simple structure, easy self-locking and stable transfer. In Fig. 2, the handwheel (5) is fixedly connected with the lead screw, the thread of the lead screw and the thread of the handwheel screw constitute a helical pair, and the thread in the nut coupled with the contact wheel (12) and the thread of the handwheel screw constitute another One screw pair, and two screw pairs form a differential screw mechanism. The sleeve is fixedly connected with the bracket by screws, and the nut can move in the sleeve. In order to make the grinding contact wheel work reliably, the screw should be tightened after grinding to fix the nut in the sleeve. The arc-shaped groove (2a) and the crank form a crank-slider mechanism, which can only make the contact wheel (12) move vertically without making the whole body move up and down, thereby applying pressure to the contact wheel (12).

Fig. 3 shows the schematic diagram of the pressure applying mechanism of a kind of rail profiling abrasive belt grinding machine provided by the embodiment of the present invention, the tensioning mechanism (10) is located between the drive wheel (9) and the contact wheel (12), and it is equipped with spring. When the tensioning handle (10a) is in a vertical state (as shown in Figure 3), the spring is in a relaxed state, and the abrasive belt (11) is also in a relaxed state; pull the tensioning handle (10a) to rotate 90° to the right to be horizontal In this case, the middle rotating block pushes the outrigger (10b) to expand the distance between the contact wheel (12) and the drive wheel (9), so that the spring is stretched and the abrasive belt is tensioned. The pushing part of the rotating block adopts a semi-cylindrical tensioning handle (10a), which is convenient to push the outrigger (10b), and the corresponding position of the tensioning handle (10a) is provided with a circular arc slot, after the tensioning handle (10a) is rotated 90° , can be stuck in the card slot and will not pop out easily.

In summary, the rail profiling abrasive belt grinding machine of the embodiment of the present invention uses the abrasive belt as the grinding tool, and the rubber layer in the contact wheel and the characteristics of the abrasive belt make the abrasive belt and the rail in flexible contact during the grinding operation, which can reduce the The impact of the vibration of the grinding machine on the grinding quality; the tension device is installed between the driving wheel and the contact wheel, which simplifies the overall structure; the pressure is directly applied to the contact wheel through arc pressure, which avoids the overall pressure of the grinding mechanism Cumbersome design.

By adopting the inner concave contact wheel, the grinding operation requirements of the entire profile of the rail can be achieved with fewer enveloping times, and at the same time, the contact area between the abrasive belt and the rail can be increased to improve the grinding efficiency. The lifting of the contact wheel is accomplished by a lead screw, and the digital display of the grinding amount can be realized through an encoder and a liquid crystal display connected with the lead screw. At the same time, the grinding machine has a simple structure and is easy to operate and maintain.

Those skilled in the art can understand that the accompanying drawing is only a schematic diagram of an embodiment, and the modules or processes in the accompanying drawing are not necessarily necessary for implementing the present invention.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiments. The device and system embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, It can be located in one place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a steel rail profile belt grinder, it is characterised in that including: frame, abrasive band, driving wheel, contact wheel, road wheel and Internal combustion engine, described abrasive band is wound on the cylindrical of driving wheel, contact wheel successively, and described internal combustion engine is positioned at above frame, described internal combustion Machine is connected with described driving wheel by belt；Described road wheel is arranged on the supported on both sides position of described frame lower end, described row Travelling wheel is walked along rail, and rail, as milling tools, is polished by described abrasive band.

2. according to the steel rail profile belt grinder described in claims 1, it is characterised in that at described driving wheel, contact wheel Between strainer is set, described strainer be internally provided with tensioning handle and spill spin block, described spill spin block connects semi-girder And spring, the tensioning handle rotating strainer drives described spill spin block to rotate, and described semi-girder and spring complete scaling operation.

3. according to the steel rail profile belt grinder described in claims 2, it is characterised in that when described tensioning handle is in perpendicular Straight situation, the most described spring is relaxed state, and described abrasive band is relaxed state；When described tensioning handle is in level condition, institute Stating spill spin block and promote described semi-girder, make the distance between described contact wheel and described driving wheel expand, described spring is stretching shape State, described abrasive band is tensioning state.

4. according to the steel rail profile belt grinder described in claims 3, it is characterised in that described tensioning handle uses semicircle Column, described tensioning handle correspondence position is provided with arc neck.

5. according to the steel rail profile belt grinder described in claims 1, it is characterised in that set described frame is fixed above Putting lifting pressure exerting arrangement, described lifting pressure exerting arrangement includes handwheel, leading screw, connecting rod, arc-shaped slot, described leading screw and described connecting rod Being connected by revolute pair, described connecting rod slides along described arc-shaped slot, and described connecting rod contacts the fixing connection of wheel shaft with described.

6. according to the steel rail profile belt grinder described in claims 5, it is characterised in that described lifting pressure exerting arrangement uses Differential screw structure.

7. according to the steel rail profile belt grinder described in claims 1, it is characterised in that described contact wheel cylindrical is provided with One layer of rubber, and rubber layer cylindrical is inner concavity.

8. according to the steel rail profile belt grinder described in claims 5, it is characterised in that install number in described frame upper end Word display, described character display is connected with described leading screw, described character display display steel rail profile belt grinder Deflection angle and lifting compression depth.

9. according to the steel rail profile belt grinder described in claims 1, it is characterised in that erect in described frame and arrange Handrail, equipped with angular displacement sensor on described handrail, described angular displacement sensor is used for determining polishing deflection angle.

10. according to the steel rail profile belt grinder described in claims 1, it is characterised in that described steel rail profile abrasive band is beaten Grinding machine is externally provided with transparent shield.