Belt driven separate rail grinding device

Abstract

The present invention provides a belt-driven separated rail grinding device. It includes: a lateral motion structure, a vertical motion structure and a deflection motion structure connected to a belt wheel system structure; the belt wheel system structure drives the belt to grind the rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the belt wheel system structure to perform vertical motion through a vertical guide column, a vertical electric push rod and a vertical bracket. During the vertical motion process, only the vertical feed motion structure moves, and the drive motion structure remains stationary; the deflection motion structure drives the belt wheel system structure to perform deflection motion through a deflection motor, a gear and a rack; the lateral motion structure drives the belt wheel system structure to perform lateral motion through a lateral electric screw, a lateral motor and a lateral slider. The device of the present invention separates the feed motion structure from the drive motion structure, so that all operation modes are driven by electric means, thereby improving the structural rigidity, grinding efficiency and grinding quality.

Description

Technical Field

[0001] The invention relates to the technical field of rail grinding, and in particular to a belt-driven separated rail grinding device. Background Art

[0002] In recent years, with the rapid development of my country's rail transit industry, the mileage of rail laying has increased year by year, and diversified rail transit modes have shown a trend of development in parallel, such as high-speed rail, conventional rail, heavy-load rail, light rail, subway and rail, etc. The area and number of turnouts are also increasing. Long-term and repeated rolling of wheels will cause various forms of defects on the surface of the rails, such as wavy wear, fat edges, falling blocks, fish scales and joint collapse. Grinding technology is recognized worldwide as the only effective means to remove rail defects.

[0003] At present, the main tools used for rail grinding are grinding wheels and milling cutters. Due to the limitations of the performance of the grinding tools themselves and the grinding methods, the grinding process has the characteristics of low efficiency and high cost. Belt grinding is a recently proposed high-efficiency, low-cost rail grinding and maintenance method. The grinding device is the core structure of the entire belt grinding equipment. The rationality of the grinding device directly affects the actual application performance of this method. During the movement of the belt, the tensioning wheel, contact wheel and drive wheel need to work together to achieve the grinding effect. Generally, the above components apply pressure to the grinding area as a whole. However, the rail grinding working conditions are relatively complicated, and the operation process itself has no unified benchmark. When the overall pressure is applied, the vibration caused by the operation of the drive motor will inevitably be transmitted to the operation area, affecting the quality of rail grinding.

[0004] Therefore, how to propose an abrasive belt rail grinding device that isolates the vibration of the driving motor in combination with actual grinding needs is an urgent problem to be solved. Summary of the invention

[0005] The embodiment of the present invention provides an abrasive belt driven separated rail grinding device, so as to realize an abrasive belt rail grinding device in which a feeding motion structure is separated from a driving motion structure.

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

[0007] A belt driven separated rail grinding device, comprising:

[0008] A grinding belt wheel train structure, and a lateral motion structure, a vertical motion structure and a deflection motion structure connected to the grinding belt wheel train structure;

[0009] The grinding belt wheel system structure drives the grinding belt to grind the rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the grinding belt wheel system structure to perform vertical motion through a vertical guide column, a vertical electric push rod and a vertical bracket. During the vertical motion, only the vertical feed motion structure moves, and the driving motion structure remains stationary; the deflection motion structure drives the grinding belt wheel system structure to perform deflection motion through a deflection motor, a gear and a rack; the lateral motion structure drives the grinding belt wheel system structure to perform lateral motion through a lateral electric screw, a lateral motor and a lateral slider.

[0010] Preferably, the device further comprises a locking mechanism, which is connected to the vertical bracket. When the abrasive belt wheel train structure is deflected to a predetermined angle, the electromagnetic valve is used to drive the brake bevel to lock the position of the deflection movement.

[0011] Preferably, the device further comprises a spring mechanism which can adapt to the change of the length of the abrasive belt, wherein the spring mechanism is connected to the slider connecting plate, and the slider connecting plate is fixedly connected to the vertical slider.

[0012] Preferably, the abrasive belt wheel train structure comprises a vertical bracket and a deflection shaft fixedly connected to each other, and a driving motor, a coupling, a driving wheel shaft, a bearing, a bearing seat, a driving wheel and a contact wheel carried on the vertical bracket and the deflection shaft;

[0013] The driving wheel is fixedly mounted on the motor mounting frame via a driving wheel shaft, a bearing and a bearing seat; the driving wheel shaft is connected to the driving motor via a coupling; the driving motor is connected to the deflection shaft via the motor mounting frame; the contact wheel is connected to the contact wheel bracket, and the contact wheel bracket is fixedly connected to the slider connecting plate.

[0014] Preferably, the vertical motion structure comprises: a vertical electric screw, a vertical guide rail, a vertical slider and a vertical bracket;

[0015] In the vertical movement of the abrasive belt driven separated rail grinding device, the vertical bracket is connected to the gear box and the vertical guide rail, the vertical electric screw is matched with the vertical electric screw nut, the vertical electric screw nut is fixedly connected to the vertical slider, the rod extension end of the vertical electric screw is connected to the gear shaft through a coupling, and the gear shaft is connected to the vertical motion motor through a primary spur gear transmission;

[0016] The vertical bracket is fixedly connected to the deflection shaft. When the vertical motion structure drives the abrasive belt wheel system structure to move vertically, the contact wheel and the abrasive belt move, while the driving wheel is stationary, thereby realizing the separation of the vertical feeding motion and the driving motion.

[0017] Preferably, the deflection motion structure comprises: a deflection motor, a deflection motor bracket, a gear and a rack;

[0018] During the deflection movement of the abrasive belt driven separate rail grinding device, the vertical bracket is connected to the deflection shaft, the deflection shaft cooperates with the deflection seat through a bearing, and the deflection seat is fixedly connected to the horizontal plate bracket; the rack in the deflection motion structure is fixedly connected to the vertical bracket, the deflection motor is installed on the horizontal plate bracket of the lateral motion structure through a deflection motor mounting frame, the gear is connected to the deflection motor, the gear is meshed with the rack, when the deflection motor drives the gear to rotate, the deflection motor drives the vertical motion structure and the abrasive belt wheel system structure to deflect to a preset angle through the rack, the deflection center is at the deflection shaft, the deflection drive is provided by the deflection motor, and the gear remains stationary during the deflection process.

[0019] Preferably, the lateral motion structure comprises: a lateral electric screw, a lateral motor, a lateral slider and a lateral guide rail;

[0020] In the lateral movement of the abrasive belt driven separate rail grinding device, the driving force is provided by the lateral electric screw, which is connected to the lateral motor through a coupling and a primary spur gear transmission, and cooperates with the lateral electric screw nut, which is fixedly connected to the lateral slider through a horizontal plate bracket, the horizontal slider is fixedly connected to the horizontal plate bracket, the deflection seat is fixedly connected to the horizontal plate bracket, and the deflection seat is also fixedly connected to the entire abrasive belt wheel system structure, and the horizontal electric screw drives the horizontal plate bracket through the lateral slider to provide horizontal movement force for the grinding device.

[0021] It can be seen from the technical solutions provided by the above-mentioned embodiments of the present invention that the abrasive belt-driven separated rail grinding device of the embodiments of the present invention includes structures for realizing lateral, vertical, deflection and other movements. The device fully considers the technical characteristics of vibration isolation when the abrasive belt grinding method is used for rail grinding, separates the feeding motion structure from the driving motion structure without interfering with each other, and satisfies that all operation modes are completed by electric drive, making the overall structure compact, improving the structural rigidity, grinding efficiency and grinding quality, and providing structural guarantee for giving full play to the technical advantages of abrasive belt grinding for rail grinding.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1A schematic diagram of the overall structure of a belt-driven separated rail grinding device provided in an embodiment of the present invention;

[0025] Figure 2 A side view of a belt-driven separated rail grinding device provided in an embodiment of the present invention;

[0026] Figure 3 A front view of a sand belt driven separated rail grinding device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0028] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the 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 should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or coupling. The term "and / or" used herein includes any unit and all combinations of one or more associated listed items.

[0029] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0030] To facilitate understanding of the embodiments of the present invention, several specific embodiments will be further explained below with reference to the accompanying drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0031] In order to solve the problems and application needs in the above-mentioned background technology, the present invention provides a belt-driven separated rail grinding device, which includes structures for realizing lateral, vertical, deflection and other movements. The device fully considers the technical characteristics of vibration isolation when the belt grinding method is used for rail grinding, separates the feeding motion structure from the driving motion structure without interfering with each other, and satisfies that all operation modes are completed by electric drive, making the overall structure compact, improving the structural rigidity, grinding efficiency and grinding quality, and providing structural guarantee for giving full play to the technical advantages of belt grinding for rail grinding.

[0032] The overall structural diagram of the belt-driven separated rail grinding device provided in the embodiment of the present invention is as follows: Figure 1 As shown, the side view is Figure 2 As shown, the main view is Figure 3 It includes mechanical structures such as a grinding belt wheel system transmission structure, a lateral motion structure, a vertical motion structure and a deflection motion structure, and also includes a locking mechanism for deflection motion that uses an electromagnetic valve to drive a brake inclined iron to lock the position and a spring mechanism that can adapt to the change of the length of the grinding belt.

[0033] The grinding belt wheel structure drives the grinding belt to grind the rail through the driving motor, driving wheel and contact wheel; the vertical motion structure drives the grinding belt wheel structure to perform vertical motion through the vertical guide column, vertical electric push rod and vertical bracket. During the vertical motion, only the vertical feed motion structure moves, and the driving motion structure remains stationary; the deflection motion structure drives the grinding belt wheel structure to perform deflection motion through the deflection motor, gear and rack; the lateral motion structure drives the grinding belt wheel structure to perform lateral motion through the lateral electric screw, lateral motor and lateral slider.

[0034] The grinding belt wheel system structure includes a driving motor 9, a coupling, a driving wheel shaft, a bearing, a bearing seat, a driving wheel 19 and a contact wheel 13, as well as a vertical bracket 21 and a deflection shaft 24 that are fixedly connected to each other and carry the above-mentioned devices. The driving wheel 19 and the contact wheel 13 of the grinding belt wheel system are installed with the driving motor 9 and the contact wheel bracket 14 at corresponding positions.

[0035] The driving wheel 19 is fixedly mounted on the motor mounting frame 10 through the driving wheel shaft, bearings and bearing seats. The driving wheel shaft is connected to the driving motor through a coupling. The driving motor 9 is connected to the deflection shaft 24 through the motor mounting frame 10. The contact wheel 13 is connected to the contact wheel bracket 14, and the contact wheel bracket 14 is fixedly connected to the slider connecting plate 20.

[0036] When the abrasive belt wheel train structure deflects to a predetermined angle, the locking mechanism 3 utilizes the electromagnetic valve to drive the brake bevel iron to position lock the deflection movement. The locking mechanism 3 is connected to the vertical bracket 21 .

[0037] The spring mechanism that can adapt to the change of the length of the abrasive belt is connected to the slider connecting plate 20, and the slider connecting plate 20 is fixedly connected to the vertical slider 27.

[0038] The vertical motion structure includes: a vertical electric screw, a vertical guide rail, a vertical slider and a vertical bracket. In the vertical motion of the belt-driven separated rail grinding device of the embodiment of the present invention, the vertical bracket 21 is connected to the gear box 1 and the vertical guide rail 25, wherein the vertical motion is realized by the vertical electric screw, the vertical electric screw cooperates with the vertical electric screw nut, the vertical electric screw nut is fixedly connected to the vertical slider 27, the rod extension end of the vertical electric screw is connected to the gear shaft through a coupling, and the gear shaft is connected to the vertical motion motor 2 through a primary spur gear transmission, and the above components constitute the realization elements of the vertical motion.

[0039] The vertical motion is carried out by the vertical guide rail 25, the vertical slider 27 and the vertical bracket 21. The vertical bracket 21 is fixedly connected to the deflection shaft 24, so that the vertical motion components form a whole. When the abrasive belt wheel system realizes vertical feeding, the contact wheel 13 and the abrasive belt 4 move, while the driving wheel 19 is stationary, so that the feeding motion is separated from the driving motion.

[0040] The deflection motion structure includes: a deflection motor, a deflection motor bracket, a gear and a rack. In the deflection motion of the belt-driven separated rail grinding device of the embodiment of the present invention, the vertical bracket 21 is connected to the deflection shaft 24, the deflection shaft 24 cooperates with the deflection seat 22 through a bearing, and the deflection seat 22 is fixedly connected to the horizontal plate bracket 15; all vertical motion components such as the belt wheel system, the vertical bracket 21, and the gear box 1 are deflected, and the deflection center is at the deflection shaft 24. The deflection drive is provided by the deflection motor 16, and the deflection motor 16 is installed on the horizontal plate bracket 15 of the lateral motion structure through the deflection motor mounting frame 17.

[0041] The deflection movement is realized by the deflection motor 16, the deflection motor bracket 17, the gear 26, and the rack 18. The rack 18 is fixedly connected to the vertical bracket 21, the gear 26 is connected to the deflection motor 16, and the gear 26 is meshed with the rack 18. When the deflection motor 16 drives the gear 26 to rotate, the deflection motor 16 drives the vertical bracket 21, the vertical motor 2, the abrasive belt wheel system structure, etc. to deflect to a preset angle through the rack 18. During the deflection process, the gear 26 remains stationary, and the vertical feed structure rotates around the deflection axis.

[0042] The lateral motion structure includes: a lateral electric screw, a lateral motor, a lateral slider and a lateral guide rail. In the lateral motion of the belt-driven separated rail grinding device of the embodiment of the present invention, the driving force is provided by the lateral electric screw, which is connected to the lateral motor 5 through a coupling and a primary spur gear 6, and the lateral electric screw is matched with the lateral electric screw nut, which is fixedly connected to the lateral slider 7 through a horizontal plate bracket 15, and the lateral slider 7 together with the lateral guide rail 8 realize the horizontal motion of the grinding device.

[0043] During the lateral movement of the grinding device, the lateral slider 7 is fixedly connected to the horizontal plate bracket 15, the deflection seat 22 of the grinding device is fixedly connected to the horizontal plate bracket 15, and the deflection seat 22 is also fixedly connected to the entire grinding belt wheel system structure, that is, the horizontal electric screw drives the horizontal plate bracket 15 through the lateral slider 7 to provide horizontal movement force for the grinding device.

[0044] In summary, the belt-driven separated rail grinding device according to the embodiment of the present invention has the following beneficial effects:

[0045] (1) When the structure performs vertical movement to achieve grinding, only the feeding motion structure moves, and the driving motion structure remains stationary, thereby achieving effective separation of the abrasive belt feeding and driving;

[0046] (2) The deflection motion component is equipped with a locking device. When the abrasive belt wheel system structure deflects to a predetermined angle, the locking device can lock the deflection motion, thereby reducing the influence of grinding vibration on the actual grinding effect;

[0047] (3) The drive motor is directly connected to the drive wheel, and the drive wheel is supported by the deflection shaft, so that the motor only transmits the driving torque, which minimizes other loads on the motor and shortens the transmission chain;

[0048] (4) It has a spring mechanism that can adapt to the change in the length of the abrasive belt, which can adapt to the change in the length of the abrasive belt caused by vertical feeding to a certain extent and maintain the tension of the abrasive belt in real time.

[0049] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of an embodiment, and the modules or processes in the accompanying drawings are not necessarily required to implement the present invention.

[0050] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A belt driven separated rail grinding device, characterized in that: include: A grinding belt wheel train structure, and a lateral motion structure, a vertical motion structure and a deflection motion structure connected to the grinding belt wheel train structure; The abrasive belt wheel system structure drives the abrasive belt to grind the rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the abrasive belt wheel system structure to perform vertical motion through a vertical guide column, a vertical electric push rod and a vertical bracket. During the vertical motion, only the vertical feed motion structure moves, and the driving motion structure remains stationary; the deflection motion structure drives the abrasive belt wheel system structure to perform deflection motion through a deflection motor, a gear and a rack; The transverse motion structure drives the abrasive belt wheel train structure to move transversely through a transverse electric screw, a transverse motor and a transverse slider; The vertical motion structure comprises: a vertical electric screw, a vertical guide rail, a vertical slider and a vertical bracket; In the vertical movement of the abrasive belt driven separated rail grinding device, the vertical bracket is connected to the gear box and the vertical guide rail, the vertical electric screw is matched with the vertical electric screw nut, the vertical electric screw nut is fixedly connected to the vertical slider, the rod extension end of the vertical electric screw is connected to the gear shaft through a coupling, and the gear shaft is connected to the vertical motion motor through a primary spur gear transmission; The vertical bracket is fixedly connected to the deflection shaft. When the vertical motion structure drives the abrasive belt wheel system structure to move vertically, the contact wheel and the abrasive belt move, while the driving wheel is stationary, so that the vertical feeding motion is separated from the driving motion. A spring mechanism can adapt to the change of the length of the abrasive belt, wherein the spring mechanism is connected to a slider connecting plate, and the slider connecting plate is fixedly connected to the vertical slider.

2. The belt-driven separated rail grinding device according to claim 1, characterized in that: The device also includes a locking mechanism, which is connected to the vertical bracket. When the abrasive belt wheel system structure deflects to a predetermined angle, the electromagnetic valve is used to drive the brake bevel iron to position lock the deflection movement.

3. The belt-driven separated rail grinding device according to claim 1, characterized in that: The abrasive belt wheel system structure includes a vertical bracket and a deflection shaft fixedly connected to each other, and a driving motor, a coupling, a driving wheel shaft, a bearing, a bearing seat, a driving wheel and a contact wheel carried on the vertical bracket and the deflection shaft; The driving wheel is fixedly mounted on the motor mounting frame via a driving wheel shaft, a bearing and a bearing seat; the driving wheel shaft is connected to the driving motor via a coupling; the driving motor is connected to the deflection shaft via the motor mounting frame; the contact wheel is connected to the contact wheel bracket, and the contact wheel bracket is fixedly connected to the slider connecting plate.

4. The belt-driven separated rail grinding device according to claim 1, characterized in that: The deflection motion structure comprises: a deflection motor, a deflection motor bracket, a gear and a rack; During the deflection movement of the abrasive belt driven separate rail grinding device, the vertical bracket is connected to the deflection shaft, the deflection shaft cooperates with the deflection seat through a bearing, and the deflection seat is fixedly connected to the horizontal plate bracket; the rack in the deflection motion structure is fixedly connected to the vertical bracket, the deflection motor is installed on the horizontal plate bracket of the lateral motion structure through a deflection motor mounting frame, the gear is connected to the deflection motor, the gear is meshed with the rack, when the deflection motor drives the gear to rotate, the deflection motor drives the vertical motion structure and the abrasive belt wheel system structure to deflect to a preset angle through the rack, the deflection center is at the deflection shaft, the deflection drive is provided by the deflection motor, and the gear remains stationary during the deflection process.

5. The belt-driven separated rail grinding device according to claim 1, characterized in that: The lateral motion structure comprises: a lateral electric screw, a lateral motor, a lateral slider and a lateral guide rail; In the lateral movement of the abrasive belt driven separate rail grinding device, the driving force is provided by the lateral electric screw, which is connected to the lateral motor through a coupling and a primary spur gear transmission, and cooperates with the lateral electric screw nut, which is fixedly connected to the lateral slider through a horizontal plate bracket, the horizontal slider is fixedly connected to the horizontal plate bracket, the deflection seat is fixedly connected to the horizontal plate bracket, and the deflection seat is also fixedly connected to the entire abrasive belt wheel system structure, and the horizontal electric screw drives the horizontal plate bracket through the lateral slider to provide horizontal movement force for the grinding device.

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