CN215518191U

CN215518191U - Rail weld joint rail bottom grinding device

Info

Publication number: CN215518191U
Application number: CN202121983803.5U
Authority: CN
Inventors: 田利明
Original assignee: Baogang China Railway Track Co ltd
Current assignee: Baogang China Railway Track Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-14
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a rail bottom grinding device for a rail welding seam, which belongs to the field of rail grinding processing equipment, wherein a grinding wheel can be accurately moved to the welding seam on the bottom surface of a rail for grinding through a lead screw synchronous lifting device and a transverse moving platform; in addition, a welding slag collecting disc is arranged for collecting welding slag falling off in the grinding process of the grinding wheel; the screen monitoring and lighting equipment is arranged, the visual image of the bottom of the steel rail is fed back to an operator, and the operator can conveniently master the polishing quality.

Description

Rail weld joint rail bottom grinding device

Technical Field

The utility model belongs to the field of steel rail grinding processing equipment, and particularly relates to a steel rail welding seam rail bottom grinding device.

Background

The development of urban railways in China is continuously advancing to high speed and rail seamless, and rail welding is an important technology for rail seamless. In the prior art, the standard length of steel rails produced by a steel plant is 100 meters, the steel rails with the standard length are transported to a steel rail welding base to be welded and connected into seamless steel rails with the length of 500 meters, then the seamless steel rails are transported to a railway line to be laid, when the railway line is laid on site, the steel rails with the length of 500 meters are sequentially welded and connected into the full-line seamless steel rails by using special equipment, no mechanically connected slit exists at any position of the steel rails, and the train can run stably. When the steel rails are welded on the rail welding base, welding seams are formed at the welding positions of every two steel rails, the thickness of the welding seams is higher than that of the surfaces of the steel rails, welding beading protruding out of the surfaces of the steel rails is formed, the welding beading needs to be ground off to form smooth welding seams, the welding seams and the smooth transition of the left steel rail and the right steel rail of the welding seams reaching the requirements of the industry standard can form qualified welding seams, and the stable and safe operation of a train is guaranteed. The surface quality of the rail bottom of the steel rail is that the rail bottom is the part which is subjected to the maximum tensile stress when a train passes through the steel rail in use, and the fatigue life of the steel rail can be greatly shortened due to the local stress concentration caused by uneven surface. So the grinding of the rail bottom of the steel rail is particularly important; the utility model provides a special rail bottom grinding device.

Disclosure of Invention

The utility model aims to provide a rail bottom grinding device for a rail welding seam, which is used for grinding the rail bottom welding seam after a rail is welded.

The technical scheme adopted by the utility model is as follows: a rail bottom grinding device for a steel rail welding seam is provided with a bottom bracket, wherein an H-shaped lead screw synchronous lifting device is arranged in the bottom bracket, and the top end of the lead screw synchronous lifting device is connected with a lifting platform to drive the lead screw synchronous lifting device to lift or lower; the lifting platform is connected with the transverse moving platform in a sliding manner, and the transverse moving platform slides to the bottom of the steel rail or slides out of the bottom of the steel rail; a polishing carrier is mounted on the transverse moving platform, and a grinding wheel driven to rotate by a motor is mounted on the polishing carrier.

Further, the polishing carrier comprises a suspension, the suspension is transversely erected in the center of the transverse moving platform, a second motor is installed at the bottom of the center of the suspension, a driving shaft of the second motor penetrates through a through hole in the center of the suspension and is connected with a rotating seat on the upper surface of the center of the suspension, and the rotating seat is driven by the second motor to rotate; a grinding wheel cylinder is arranged on the rotary seat, the top of the grinding wheel cylinder is provided with an opening, and the center of the grinding wheel cylinder is provided with an inserting part; a cylindrical grinding wheel is arranged in the grinding wheel cylinder, the center of the grinding wheel is provided with a through hole matched with the shape of the insertion part in the grinding wheel cylinder, the grinding wheel is placed in the grinding wheel cylinder, and the insertion part is inserted into the through hole in the center of the grinding wheel; the upper surface of the grinding wheel is higher than the grinding wheel cylinder. The structure can conveniently replace the grinding wheel.

Furthermore, a welding slag collecting disc is sleeved outside the rotary seat and connected with the suspension, and the upper edge of the welding slag collecting disc is lower than the upper surface of the grinding wheel; the welding slag collecting disc is used for collecting welding slag falling off in the grinding process of the grinding wheel.

Furthermore, a camera is arranged on the side surface of the welding slag collecting disc, faces the bottom surface of the steel rail, shoots a rail bottom welding seam polishing picture and transmits the rail bottom welding seam polishing picture to a display, and the display is arranged on the transverse moving platform and faces an operator; in addition, an illuminating lamp which irradiates towards the bottom surface of the steel rail is arranged on the welding slag collecting disc. Through looking screen control and lighting apparatus, give the operation personnel with the audio-visual feedback of rail bottom picture of polishing, make things convenient for the operation personnel to master the quality of polishing.

The utility model has the beneficial effects that: the utility model provides a rail bottom grinding device for a rail welding seam, wherein a grinding wheel can be accurately moved to the welding seam of the bottom surface of a rail for grinding through a lead screw synchronous lifting device and a transverse moving platform; in addition, a welding slag collecting disc is arranged for collecting welding slag falling off in the grinding process of the grinding wheel; the screen monitoring and lighting equipment is arranged, the visual image of the bottom of the steel rail is fed back to an operator, and the operator can conveniently master the polishing quality.

Drawings

Fig. 1 is a schematic view of the installation position of the sanding device of the present invention.

Fig. 2 and 3 are schematic perspective views of the polishing device of the present invention.

Fig. 4 is a structural display view of the polishing carrier.

Fig. 5 is a view showing an installation structure of the grinding wheel cylinder and the grinding wheel.

Fig. 6 is an internal structure display diagram of the grinding wheel cylinder.

Fig. 7 is a view showing a camera and display mounting position.

Fig. 8 is a structural display view of the slag collection pan.

In the figure: the grinding wheel device comprises a bottom support 1, a shock absorption pad 101, a lead screw synchronous lifting device 2, a first motor 201, a steering machine 202, a lifter 203, a lifting platform 3, a sliding rail 301, a sliding block 302, a transverse moving platform 4, a grinding carrier 5, a suspension 501, a rotating seat 502, a second motor 503, a grinding wheel cylinder 504, an inserting part 505, a grinding wheel 6, a welding slag collecting disc 7, a sleeving hole 701, a camera 8, a display 9 and a roller way conveying line 10.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in figure 1, the movement of the steel rail at a rail welding base is realized by a roller way, and a polishing device before welding, a welding device, a polishing device after welding and a manual secondary polishing device are arranged along a roller way transport line 10. After the first polishing of the post-welding polishing equipment, manual fine polishing is carried out by using semi-automatic secondary polishing equipment. As shown in the figure, the roller way transport line 10 is formed with a fracture in which the rail weld bottom grinding device of the steel rail of the present invention is installed.

As shown in fig. 2 to 8, the rail weld joint and rail bottom grinding device comprises a bottom bracket 1, a lead screw synchronous lifting device 2, a lifting platform 3, a transverse moving platform 4, a grinding carrier 5 and a grinding wheel 6; as shown in fig. 2, the bottom bracket 1 is a steel frame structure, and includes a rectangular frame at the bottom, a bottom plate is installed in the rectangular frame, four upright posts are arranged at four corners of the rectangular frame, a soft and elastic shock pad 101 is installed at the top end of each upright post, and a square pad plate made of rubber can be adopted; the H-shaped lead screw synchronous lifting device 2 is installed on the bottom plate, the lead screw synchronous lifting device 2 comprises a first motor 201 at the center, the first motor 201 is connected with the lifters 203 at four corners through three steering gears 202, and the top ends of the four lifters 203 are connected with the lifting platform 3.

As shown in fig. 2 and 3, the lifting platform 3 is a rectangular frame, and is formed by welding two longitudinal square pipes and a plurality of middle transverse square pipes, the upper surfaces of the two longitudinal square pipes are respectively provided with a slide rail 301, the two slide rails 301 are arranged in parallel, each slide rail 301 is provided with a plurality of slide blocks 302, and the slide blocks 302 are provided with the traverse moving platform 4. The lifting platform 3 is lifted or lowered through the lead screw synchronous lifting device 2; when the lifting platform 3 descends to the lowest position, the lifting platform 3 contacts the shock pad 101 at the top end of the upright. The traverse platform 4 can be manually moved to or from the bottom of the rail.

As shown in fig. 4 and 5, the traverse platform 4 is a rectangular frame structure and is formed by welding two longitudinal square tubes and a plurality of middle transverse square tubes, the polishing carrier 5 is installed in the center of the traverse platform 4, and the polishing carrier 5 comprises a suspension 501, a rotating seat 502 and a grinding wheel cylinder 504; the suspension 501 transversely erects in the sideslip platform 4 central authorities, and suspension 501 central bottom installation second motor 503, the through-hole at suspension 501 central authorities is passed to the drive shaft of second motor 503 to be connected with the roating seat 502 of suspension 501 central upper surface, roating seat 502 rotates under the drive of second motor 503, is equipped with four threaded connection holes on the roating seat 502, through four bolt installation emery wheel section of thick bamboo 504.

As shown in fig. 6, the grinding wheel cylinder 504 is a cylindrical cylinder, the top of the grinding wheel cylinder is open, through holes are formed in the bottom of the grinding wheel cylinder 504 corresponding to four threaded connection holes on the rotating base 502, and a cross-shaped plugging portion 505 is arranged in the center of the grinding wheel cylinder 504; as shown in fig. 5, a cylindrical grinding wheel 6 is mounted in the grinding wheel cylinder 504, a through hole matched with the shape of the insertion part 505 in the grinding wheel cylinder 504 is formed in the center of the grinding wheel 6, the grinding wheel 6 is placed in the grinding wheel cylinder 504, and the insertion part 505 is inserted into the through hole in the center of the grinding wheel 6; the upper surface of the grinding wheel 6 is higher than the grinding wheel cylinder 504, and the grinding wheel cylinder 504 and the grinding wheel 6 rotate together with the rotating base 502 to grind the bottom of the steel rail.

The use method of the polishing device comprises the following steps: placing the grinding wheel 6 in the grinding wheel cylinder 504, manually pushing the transverse moving platform 4 to the position below the steel rail, lifting the lifting platform 3 to enable the grinding wheel 6 to be close to the weld joint, starting the second motor 503, and grinding the weld joint by rotating the grinding wheel 6; and after polishing, lowering the lifting platform 3 to enable the grinding wheel 6 to be far away from the steel rail, observing and detecting whether the welding seam polishing is qualified or not, and polishing for a plurality of times if the welding seam polishing is unqualified.

Welding slag can fall off in the polishing process, and in order to collect the falling welding slag in a centralized manner, a welding slag collecting tray 7 can be further added, as shown in fig. 7 and 8, the center of the welding slag collecting tray 7 is provided with a circular sleeving hole 701, the welding slag collecting tray 7 is sleeved outside the rotating seat 502 and fixed with the suspension 501 through bolts and does not rotate along with the rotating seat 502; the upper edge of the welding slag collecting tray 7 is lower than the upper surface of the grinding wheel 6; welding slag falling in the grinding process of the grinding wheel 6 falls into the welding slag collecting tray 7 to be intensively poured.

In addition, the rail bottom polishing process and the polished conditions need to be checked by bending down or squatting down, so that continuous polishing operation is inconvenient; in order to feed back the rail bottom polishing condition to an operator in real time, a view screen is additionally arranged on the polishing device for monitoring; specifically, a camera 8 is arranged on the side surface of the welding slag collecting tray 7, the camera 8 faces the bottom surface of the steel rail, a rail bottom welding seam polishing picture is shot and transmitted to a display 9, the display 9 is arranged on the transverse moving platform 4 and faces an operator, and the operator observes the polishing condition through the display 9; the light at the bottom of the rail is darker, and an illuminating lamp which irradiates towards the bottom surface of the rail can be arranged on the side surface of the welding slag collecting tray 7.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a rail welding seam rail foot grinding device, has bottom support (1), characterized by: an H-shaped lead screw synchronous lifting device (2) is arranged in the bottom support (1), and the top end of the lead screw synchronous lifting device (2) is connected with a lifting platform (3) to drive the lead screw synchronous lifting device to lift or lower; the lifting platform (3) is connected with the transverse moving platform (4) in a sliding manner, and the transverse moving platform (4) slides to the bottom of the steel rail or slides out of the bottom of the steel rail; a polishing carrier (5) is installed on the transverse moving platform (4), and a grinding wheel (6) driven to rotate by a motor is installed on the polishing carrier (5).

2. A rail weld joint rail bottom grinding device according to claim 1, characterized in that: the polishing carrier (5) comprises a suspension (501), the suspension (501) is transversely erected in the center of the traversing platform (4), a second motor (503) is installed at the bottom of the center of the suspension (501), a driving shaft of the second motor (503) penetrates through a through hole in the center of the suspension (501) and is connected with a rotating seat (502) on the upper surface of the center of the suspension (501), and the rotating seat (502) is driven by the second motor (503) to rotate; a grinding wheel cylinder (504) is arranged on the rotary seat (502), the top of the grinding wheel cylinder (504) is opened, and the center of the grinding wheel cylinder is provided with an insertion part (505); a cylindrical grinding wheel (6) is arranged in the grinding wheel cylinder (504), a through hole which is matched with the shape of an insertion part (505) in the grinding wheel cylinder (504) is formed in the center of the grinding wheel (6), the grinding wheel (6) is placed in the grinding wheel cylinder (504), and the insertion part (505) is inserted into the through hole in the center of the grinding wheel (6); the upper surface of the grinding wheel (6) is higher than the grinding wheel cylinder (504).

3. A rail weld joint and rail foot grinding device as claimed in claim 2, wherein: the inserting part (505) in the center of the grinding wheel cylinder (504) is in a cross shape.

4. A rail weld joint and rail foot grinding device as claimed in claim 2, wherein: the welding slag collecting tray (7) is further sleeved outside the rotating seat (502), the welding slag collecting tray (7) is connected with the suspension (501), and the upper edge of the welding slag collecting tray (7) is lower than the upper surface of the grinding wheel (6).

5. A rail weld joint rail bottom grinding device according to claim 4, characterized in that: welding slag collecting tray (7) side-mounting camera (8), camera (8) are towards the rail bottom surface, and camera (8) are shot rail end welding seam and are polished the picture and transmit to display (9), and display (9) are installed and are faced the operation personnel on sideslip platform (4).

6. A rail weld joint rail bottom grinding device according to claim 4, characterized in that: and an illuminating lamp irradiating towards the bottom surface of the steel rail is arranged on the welding slag collecting disc (7).

7. A rail weld joint and rail foot grinding device according to any one of claims 1 to 6, wherein: the synchronous lifting device (2) of lead screw comprises a first motor (201) in the center, the first motor (201) is connected with lifters (203) on four corners through three steering gears (202), and the top ends of the four lifters (203) are connected with a lifting platform (3).

8. A rail weld joint and rail bottom grinding device according to claim 7, characterized in that: the sliding connection structure on the lifting platform (3) comprises two sliding rails (301) which are arranged on the lifting platform (3) in parallel, a plurality of sliding blocks (302) are installed on each sliding rail (301), and a transverse moving platform (4) is installed on each sliding block (302).