CN205520811U - Rail flange of rail welding seam automatic sander - Google Patents

Abstract

The utility model discloses an automatic grinding machine for welding seam at the bottom of a rail, which comprises: a fixed frame; a grinding wheel grinding system connected with the fixed frame for grinding the bottom of a rail; a vertical feed system, The fixing frame is connected with the vertical feeding system to fix the vertical feeding system, and the vertical feeding system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move in a direction perpendicular to the ground; and the horizontal feeding system, the fixing frame It is connected with the horizontal feeding system to fix the horizontal feeding system, and the horizontal feeding system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move axially along the rail. The automatic grinding machine for the welding seam of the rail bottom disclosed by the utility model has the advantages of saving manpower and simple grinding tools.

Description

An automatic grinding machine for rail bottom welds

technical field

The utility model relates to a rail welding auxiliary processing equipment, in particular to an automatic grinding machine for rail bottom welds.

Background technique

In recent years, my country's railway industry has developed rapidly, especially the emergence of seamless lines, which has promoted the development of railways in the direction of high speed and heavy load. The achievements of the railway industry have attracted worldwide attention. At present, my country's high-speed rail operating mileage has reached 16,000 kilometers, surpassing the sum of the operating mileage of high-speed rail in other countries in the world, and becoming the country with the fastest development of high-speed rail. As the basic technical support for the development of the railway industry, rail welding is the core link of laying seamless lines and an important guarantee for the safety of line traffic. The rapid development of high-speed railways has put a greater test on the quality of welded joints of rails on seamless lines. The quality of welded joints on rails is directly related to the quality and life of the entire seamless line.

At present, the most widely used construction site rail welding processes include mobile flash welding, gas pressure welding and aluminothermic welding. According to the current rail welding standard TB/T1632-2014, the welded joints must be ground after flash welding, thermite welding, and gas pressure welding, and the "weld bumps" protruding from the outline of the rail at the welds should be ground to ensure that the welded joints are The surface roughness meets the needs of flaw detection and scanning, and the vertical and horizontal staggered sides of the non-working surface transition smoothly. As the rail bottom of the non-working surface, it is inconvenient to use an automatic profiling grinding machine for grinding due to the position limitation of the site welding, especially the online welding. However, in order to ensure the quality of the line, the "weld bead" of the rail bottom weld must be ground flat.

In the post-welding grinding process, the most widely used equipment currently includes profiling grinders and hand-held rod grinding wheels. The profiling grinding machine can realize the grinding of the weld seam of the working surface of the rail, but the rail bottom as the non-working surface is difficult to realize the welding seam grinding of the rail bottom due to its inconvenient location. Grinding the rail bottom weld with a hand-held rod grinding wheel not only has low efficiency and affects the construction progress, but also has poor working conditions and poor grinding quality stability, and requires a large labor force, which increases construction safety risks and wastes labor costs. Especially in the overhaul of existing lines, the "skylight" time is limited, every process needs to race against time, and the existing methods are difficult to meet the high-paced demand; on the other hand, the more labor force is involved in the on-site construction, the greater the safety risk. . More importantly, hand-held stick grinding wheel grinding depends on the operator's technical level and working attitude, and the quality is difficult to control. Therefore, this old manual operation method urgently needs to be improved to keep pace with the rapid development of the railway industry.

Utility model content

In order to solve the above-mentioned technical problems, the utility model discloses an automatic grinding machine for rail bottom welds, which includes:

Fixing frame, the fixing frame is used for fixing the steel rail;

The grinding wheel grinding system, which is connected with the fixed frame, is used to grind the bottom of the rail;

a vertical feeding system, the fixing frame is connected with the vertical feeding system to fix the vertical feeding system, and the vertical feeding system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move in a direction perpendicular to the ground; and

The horizontal feed system, the fixed frame is connected with the horizontal feed system to fix the horizontal feed system, and the horizontal feed system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move axially along the rail.

In one embodiment of the present utility model, the fixing frame includes:

A plurality of fixed frame legs, the plurality of fixed frame legs are perpendicular to the ground and parallel to each other;

A plurality of fixed frame support plates, each of the plurality of fixed frame support plates is connected to the tops of corresponding two of the plurality of fixed frame support legs, and the plurality of fixed frame support plates are parallel to the ground;

a fixing splint connecting ends on the same side of two parallel fixing frame struts of the plurality of fixing frame struts, the fixing splint being used to position the rail; and

A plurality of pressing parts are respectively connected to the fixed splint through a rotating shaft, and the plurality of pressing parts are parallel to each other in a direction perpendicular to the axial direction of the steel rail, and are used for clamping the steel rail.

In one embodiment of the present invention, the cross-section of the fixing splint is in a "Z" shape, and the top horizontal edge of the "Z" shape is connected with a plurality of fixing frame supports, and the bottom corner of the "Z" shape is There is a card slot that can cooperate with the foot of the rail to position the rail; and

The upper part of each of the plurality of pressing parts has a shape that can be matched with the rail head to clamp the rail head, and one end of each of the plurality of pressing parts is connected with the fixed splint through a rotating shaft , The other end is provided with a rail head locking screw perpendicular to the axial direction of the rail and parallel to the ground to lock the pressing piece and the rail head.

In one embodiment of the present invention, the end of the bottom horizontal side of the "Z" shape of the fixing splint has a downward vertically extending side, and a pin shaft is arranged on the vertically extending side, and the pin shaft is respectively connected to the upper side. The movable pressing block is connected with the rail bottom locking screw below, wherein the movable pressing block is used to compress the rail foot part that is symmetrical to the rail axis with respect to the rail axis, and the rail bottom locking screw is used for To lock the pin shaft with the vertically extending edge.

In one embodiment of the present invention, the grinding wheel grinding system includes:

The first support frame, the first support frame is respectively connected with the vertical feed system and the horizontal feed system, so as to drive the grinding wheel grinding system along the direction perpendicular to the ground and/or under the drive of the vertical feed system and the horizontal feed system Axial movement along the rail;

The second support frame, the second support frame is perpendicular to the ground and is arranged below the fixed splint opposite to the first support frame, and the second support frame is respectively connected with the vertical feed system and the horizontal feed system;

A hydraulic motor, the hydraulic motor is arranged on the side of the first support frame facing the fixed splint;

A plurality of first horizontal support bars, the plurality of first horizontal support bars are parallel to the ground, and one end of each of the plurality of first horizontal support bars is connected to the first support frame, and the other end is connected to the second support frame;

An elastic coupling, the elastic coupling is arranged on the side of the hydraulic motor close to the fixed splint, and one end of the elastic coupling is connected to the output end of the hydraulic motor;

The grinding wheel shaft is arranged on the side of the elastic coupling close to the fixed splint, and one end of the grinding wheel shaft is connected to the other end of the elastic coupling;

Grinding the grinding wheel, the grinding wheel is connected to the other end of the grinding wheel shaft through the grinding wheel chuck, and the grinding wheel is arranged under the fixed splint; and

Coupling cover, the coupling cover is set outside the elastic coupling, one end of the coupling cover is connected to the hydraulic motor, the other end is connected to the second support frame, and the coupling cover is connected to the hydraulic motor One end is provided with a bell jar flange, and a plurality of first horizontal support bars pass through the bell jar flange in parallel,

Wherein, the first support frame is connected with the vertical feed system, and is used to cooperate with the second support frame to drive the grinding wheel grinding system to move along the direction perpendicular to the ground under the drive of the vertical feed system.

In one embodiment of the present invention, the thickness of the grinding wheel is greater than the lateral width of the rail bottom.

In one embodiment of the present utility model, the rail bottom welding seam automatic grinding machine also includes:

Feeding system fixing plate, the feeding system fixing plate is set between multiple fixing frame feet parallel to the ground, the feeding system fixing plate includes a thick pulley fixing plate, a synchronous pulley fixing plate and two horizontal feed nut fixing plates , wherein the thick pulley fixed plate, the synchronous pulley fixed plate and two horizontal feed nut fixed plates are sequentially connected into a rectangular shape, and the thick pulley fixed plate and the synchronous pulley fixed plate are arranged parallel to the axial direction of the rail.

In one embodiment of the utility model, the vertical feed system includes:

The first synchronous pulley, the first synchronous pulley is arranged on the upper side of the thick pulley fixed plate, and the first synchronous pulley passes through the vertical feed screw through the thick pulley fixed plate and is fixed on the first support frame The vertical feeding nut cooperates to drive the grinding wheel grinding system to move vertically to the ground;

Vertical feed handwheel, the vertical feed handwheel is connected with the vertical feed screw passing through the first synchronous pulley to drive the vertical feed screw to rotate and fixed on the vertical feed screw through the vertical feed screw the first timing pulley on the bar rotates; and

Two second synchronous pulleys, the two second synchronous pulleys are respectively arranged on the upper side of the synchronous pulley fixed plate, and the two second synchronous pulleys pass through the vertical feed screw respectively through the synchronous pulley fixed plate Cooperate with the vertical feed nut fixed on the second support frame, and the two second synchronous pulleys are respectively connected with the first synchronous pulley through the synchronous belt to rotate under the drive of the first synchronous pulley, and further drive The grinding wheel grinding system makes a movement perpendicular to the ground.

In one embodiment of the present invention, the vertical feed screw passes through the deep groove ball bearings respectively arranged on the thick pulley fixing plate and the synchronous pulley fixing plate.

In one embodiment of the utility model, the horizontal feeding system includes:

The first horizontal feed support plate and the second horizontal feed support plate, the first horizontal feed support plate and the second horizontal feed support plate are parallel to each other and perpendicular to the rail axis and fixed on a plurality of fixed frame legs;

A horizontal feed screw, the horizontal feed screw is parallel to the axial direction of the steel rail, and one end of the horizontal feed screw passes through the first horizontal feed support plate and is connected to the horizontal feed handwheel, and the other end has threads; and

Horizontal feed nut, the horizontal feed nut is fixedly connected with one of the two horizontal feed nut fixing plates close to the first horizontal feed support plate, and the horizontal feed nut is matched with the thread at the other end of the horizontal feed screw .

In one embodiment of the present utility model, the horizontal feed system also includes:

Two second horizontal support bars, the two second horizontal support bars are parallel to the ground and the axial direction of the rail, and one end of each of the two second horizontal support bars is respectively connected to the first horizontal feed support plate, And each of the two second horizontal support bars passes through the horizontal support rings fixedly arranged on the two horizontal feed nut fixing plates in turn.

In one embodiment of the invention, the vertical feed nut is made of brass.

In one embodiment of the invention, the horizontal feed nut is made of brass.

Compared with the prior art, the utility model has the following technical effects: 1. The rail rail bottom weld automatic grinding machine disclosed in the utility model is fixed on the rail during the operation project, does not need to be manually held, has less labor, and saves manpower; 2. Simple operation and strong practicability; 3. The thickness of the grinding wheel of this grinder is larger than that of the rail, and only two directions of feed movement are required during operation, so the feed movement range is small and the efficiency is high.

Description of drawings

The above and other aspects and features of the present utility model will be clearly presented from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a perspective view of a rail bottom weld seam automatic grinding machine according to an embodiment of the present invention;

Fig. 2 is the schematic diagram of the fixing frame of the rail bottom welding seam automatic grinding machine according to the utility model embodiment; With

Fig. 3 is a side view of the automatic grinding machine for rail bottom welds according to an embodiment of the present invention.

detailed description

The illustrative and non-limiting embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and the automatic grinding machine for welding seams at the bottom of rails according to the present invention will be further described.

Referring to Fig. 1 , the automatic grinding machine for welding seams at the bottom of rails according to one embodiment of the present invention includes: a fixed frame, a grinding wheel grinding system, a vertical feed system and a horizontal feed system.

The fixed frame is a fixed part of the rail bottom weld automatic grinding machine, which is used to fix the rail 1 and keep the position of the rail 1 relative to the fixed frame unchanged so that the grinding wheel grinding system can grind the rail bottom. The solution of fixing the steel rail with a fixed frame avoids the need to manually hold the steel rail for grinding, which can greatly reduce the labor load and protect the personal safety of the operator.

The grinding wheel grinding system is connected with the fixed frame and is used for grinding the rail bottom of the steel rail 1. The grinding wheel grinding system can move relative to the rail 1 along the axial direction of the rail and perpendicular to the ground. Therefore, after the position of the rail 1 is fixed by the fixing frame, the grinding wheel grinding system can move the rail 1 under the control of the operator. Carry out circumferential grinding to remove excess material protruding from the contour of the weld seam at the bottom of the rail after welding, to make the rail bottom smooth, and to eliminate the hidden dangers of premature failure of the weld seam caused by uneven appearance of the weld seam and unsafe driving.

The fixed frame is connected with the vertical feeding system to fix the vertical feeding system, and the vertical feeding system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move relative to the rail 1 in a direction perpendicular to the ground, thereby adjusting the grinding wheel The grinding position of the grinding system on the rail 1 in the vertical direction. The horizontal feeding system is also connected with the fixed frame, and the horizontal feeding system is connected with the grinding wheel grinding system to drive the grinding wheel grinding system to move relative to the rail 1 along the axial direction of the rail, thereby adjusting the grinding wheel grinding system in the axial direction of the rail. Grinding position for rail 1. According to an embodiment of the present invention, the vertical feeding system and the horizontal feeding system can be manually operated to control the grinding process of the grinding wheel grinding system, which has the advantages of easy control and simple operation.

The operation method of the rail bottom welding seam automatic grinding machine according to the above-mentioned embodiment of the utility model is as follows: firstly, use the fixed frame to fix the rail 1 to ensure that the rail 1 will not move relative to the fixed frame; then, start the grinding wheel grinding system to start Grinding the bottom of the rail; during the grinding process, adjust the vertical feeding system and the horizontal feeding system according to the grinding progress to change the grinding position of the grinding wheel grinding system relative to the bottom of the rail; grind the bottom of the rail until the weld is flat, When there is no protrusion, stop the sanding operation.

Referring to Fig. 2, according to an embodiment of the utility model, the fixing frame of the rail bottom welding seam automatic grinding machine includes: a plurality of fixing frame feet 20, a plurality of fixing frame supporting plates 27, a fixing splint 4 and a plurality of pressing parts 2 .

A plurality of fixed frame legs 20 are arranged parallel to each other and perpendicular to the ground to play a supporting role. Each of the plurality of bracket supports 27 connects the tops of corresponding two of the plurality of bracket legs 20 , and the plurality of bracket supports 27 are all parallel to the ground. The fixed splint 4 connects the ends of two parallel fixed frame supports in the plurality of fixed frame supports 27 on the same side, and is used for positioning the rail 1 . A plurality of pressing parts 2 are respectively connected to the fixed splint 4 through rotating shafts, and the plurality of pressing parts 2 are parallel to each other in a direction perpendicular to the length direction of the rail. After the rail 1 is positioned in the fixing splint 4, multiple pressing parts can be used. Fastener 2 is further clamped to prevent rail 1 from loosening during grinding.

Further, the cross-section of the fixing splint 4 is in a "Z" shape, and the top horizontal side of the "Z" shape is connected with a plurality of fixing bracket supports 27, so as to fix the fixing splint 4 on the fixing bracket supporting plates 27 and On the support foot 20 of the fixing frame; the bottom corner of the "Z" shape has a card slot 33 that can be matched with the rail foot. The rail feet of the rail are snapped into the slot 33, thereby positioning the rail 1. The upper part of each of the plurality of pressing parts 2 has a shape that can be matched with the rail head to clamp the rail head, and one end of each of the plurality of pressing parts 2 is fixed with the rotating shaft 3 The vertical sides of the "Z" shape of the splint 4 are connected. When the rail 1 is fixed, the pressing part 2 is opened first to snap the rail foot of the rail 1 into the slot 33 for positioning, and the positioning is completed. Rotate the rotating shaft 3 so that the pressing member 2 compresses the rail head. At the same time, the other end of each of the plurality of pressing parts 2 is provided with a rail head locking screw 32 perpendicular to the axial direction of the rail and parallel to the ground to further lock the pressing part 2 and the rail head of the rail to prevent operation. Rail 1 loosened during the process.

Further, the end of the bottom horizontal side of the "Z" shape of the fixed splint 4 has a downward vertically extending side, and a pin shaft 30 is arranged on the vertically extending side, and the pin shaft 30 is pressed against the upper movable side respectively. The block 31 is connected with the bottom rail locking screw 29 below. After the rail 1 is positioned, the movable pressing block 31 is rotated to compress the rail foot portion of the rail foot that is snapped into the draw-in groove 33 with respect to the axis of the rail, and the pin shaft 30 is fixed with the rail bottom locking screw 29. The vertically extending edge of the "Z" shape of the splint 4 is locked, thereby completing the fixing of the bottom of the rail, and further ensuring that the rail 1 will not move relative to the fixed frame during the grinding operation.

1 and 3, according to an embodiment of the utility model, the grinding wheel grinding system of the rail bottom weld automatic grinding machine includes: a first support frame 18, a second support frame 24, a hydraulic motor 21, a plurality of first level Support bar 19, elastic coupling (not shown in the figure), emery wheel axle (not shown in the figure), grinding wheel 28 and coupling cover 22.

The first support frame 18 is the supporting structure of the emery wheel grinding system, which is connected with the vertical feed system and the horizontal feed system respectively, so as to move under the drive of the vertical feed system and the horizontal feed system, and then make the whole emery wheel grind The system moves along the direction perpendicular to the ground and the axis of the rail. The second support frame 24 is perpendicular to the ground and opposite to the first support frame 18 and is arranged below the fixed splint 4, and the second support frame 24 is connected with the vertical feed system and the horizontal feed system, so that the vertical feed system Driven by the horizontal feed system and in cooperation with the first support frame 18, the grinding wheel grinding system is driven to move along the direction perpendicular to the ground and the axial direction of the steel rail. The hydraulic motor 21 is arranged on the side of the first support frame 18 facing the fixed splint 4, and is used to provide driving force for the movement of the grinding wheel grinding system, but those skilled in the art should understand that the hydraulic motor 21 in the utility model can be Other driving force providing devices common in the art are used instead. A plurality of first horizontal support bars 19 are all arranged parallel to the ground, and one end of each of the plurality of first horizontal support bars 19 is connected to the first support frame 18, and the other end is connected to the second support frame 24, so that the first support frame 24 A support frame 18, a second support frame 24 and the whole emery wheel grinding system move synchronously under the drive of the vertical feed system and the horizontal feed system. An elastic coupling (not shown in the figure) is arranged on one side of the hydraulic motor 21 close to the fixed splint 4 , and one end of the elastic coupling is connected to the output end of the hydraulic motor 21 . The grinding wheel shaft (not shown in the figure) is arranged on one side of the elastic coupling close to the fixed splint 4, and one end of the grinding wheel shaft is connected with the other end of the elastic coupling. The grinding wheel 28 is connected with the other end of the grinding wheel shaft through a grinding wheel chuck (not shown). The elastic coupling can adapt to various deviations, transmit torque with zero gap, and improve the grinding accuracy of the grinding wheel 28 . At the same time, a coupling cover 22 is placed outside the elastic coupling to protect the elastic coupling. One end of the coupling cover 22 is connected with the hydraulic motor 21, and the other end is connected with the second support frame 24, and the one end of the coupling cover 22 is provided with a bell flange (not shown), so that A plurality of first horizontal support bars 19 can pass through the bell jar flange in parallel, thereby the first support frame 18, the hydraulic motor 21, the elastic coupling and the coupling cover 22, the second support frame 24 and the grinding wheel 28 The grinding wheel grinding system is connected as a whole, and the grinding wheel grinding system can be moved under the drive of the vertical feed system and the horizontal feed system to adjust the grinding position of the rail 1 in the two directions of the vertical and the rail axis.

Preferably, the thickness of the grinding wheel 28 is greater than the lateral width of the rail bottom, so that the grinding process only needs to be fed in vertical and axial directions, which simplifies the grinding process.

1 and 3, according to an embodiment of the utility model, the rail bottom welding seam automatic grinding machine also includes a feeding system fixing plate, and the feeding system fixing plate is arranged between a plurality of fixing frame legs 20 parallel to the ground, and is used for It is used to fix some parts of vertical feed system and horizontal feed system. Feed system fixed plate comprises thick pulley fixed plate 14, synchronous pulley fixed plate 5 and two horizontal feed nut fixed plates 25, wherein, thick pulley fixed plate 14, synchronous pulley fixed plate 5 and two horizontal feed nut fixed plates 25 The nut fixing plate 25 is sequentially fixedly connected into a rectangular shape, and the thick pulley fixing plate 14 and the synchronous pulley fixing plate 5 are arranged parallel to the rail 1 .

1 and 3 again, according to an embodiment of the utility model, the vertical feed system of the rail bottom weld automatic grinding machine includes: a first synchronous pulley 12, a vertical feed handwheel 13, and a vertical feed screw 9 , Vertical feed nut 17 and two second synchronous pulleys 10.

The first synchronous pulley 12 is arranged on the thick pulley fixed plate 14 upper side, and the first synchronous pulley 12 passes through the vertical feed screw 9 of the thick pulley fixed plate 14 and the vertical feed on the first support frame 18 Cooperate with the nut 17, so that the first synchronous pulley 12 can drive the grinding wheel grinding system through the vertical feed screw 9 to move vertically to the ground. The vertical feed hand wheel 13 is connected with the vertical feed screw 9 passing through the first synchronous belt pulley 12 to drive the vertical feed screw to rotate and be fixed on the vertical feed screw by the vertical feed screw. The first synchronous pulley 12 on the top rotates. During the working process, the operator drives the first synchronous pulley 12 to rotate by rotating the vertical feed handwheel 13. The two second synchronous pulleys 10 are respectively arranged on the upper side of the synchronous pulley fixing plate 5 , and are respectively connected with the first synchronous pulley 12 through the synchronous belt 11 to rotate synchronously under the driving of the first synchronous pulley 12 . The two second synchronous pulleys 10 cooperate with the vertical feed nuts (not shown) fixed on the second support frame 24 by passing the vertical feed screw 9 of the synchronous pulley fixed plate 5 respectively, thereby The two second synchronous pulleys 10 drive the second support frame 24 to move up and down in the vertical direction through the vertical feed screw, that is, to drive the grinding wheel grinding system to move up and down in the vertical direction. Preferably, the above-mentioned vertical feed nut 17 is made of brass. During the working process, when it is necessary to adjust the feed rate of the grinding wheel grinding system in the vertical direction, the operator turns the vertical feed hand wheel 13 to drive the first synchronous pulley 12 to rotate, and the first synchronous pulley 12 passes through the synchronous belt 11 further drive two second synchronous pulleys 10 to rotate synchronously with the first synchronous pulley 12; The rotation of the vertical feed nut 17 further drives the second support frame 24 and the first support frame 18 to move vertically, thereby completing the adjustment of the feed rate of the grinding wheel grinding system in the vertical direction. The adjustment method is simple, easy to operate, and has a wide range of applications.

According to one embodiment of the present utility model, the vertical feed screw 9 respectively passes through the deep groove ball bearings 8 arranged on the thick pulley fixed plate 14 and the synchronous pulley fixed plate 5, so as to withstand axial and vertical pressure .

1 and 3, according to an embodiment of the utility model, the horizontal feed system of the rail bottom weld automatic grinding machine includes: a first horizontal feed support plate 26a, a second horizontal feed support plate 26b, a horizontal feed support plate Lead screw 6 and horizontal feed nut 7.

The first horizontal feed support plate 26 a and the second horizontal feed support plate 26 b are vertically fixed on the plurality of fixing frame feet 20 in the axial direction of the rail, and play a supporting role for the horizontal feed screw 6 . The horizontal feed screw 6 is axially arranged parallel to the rail, and one end of the horizontal feed screw 6 passes through the first horizontal feed support plate 26a and is connected with the horizontal feed handwheel 23, and the other end is provided with threads for connecting with Horizontal feed nut 7 cooperates. The horizontal feed nut 7 is fixedly connected with one of the two horizontal feed nut fixing plates 25 which is close to the first horizontal feed support plate 26a. During the operation, turn the horizontal feed handwheel 23 so that the horizontal feed screw 6 rotates in the horizontal feed nut 7, thereby pushing/pull the horizontal feed nut fixing plate 25 to move in the horizontal direction, due to the horizontal feed The nut fixed plate 25 is fixedly connected with the thick pulley fixed plate 14 and the synchronous pulley fixed plate 5, and the thick pulley fixed plate 14 and the synchronous pulley fixed plate 5 are further connected with the grinding wheel grinding system through the vertical feed screw 9 , so the movement of the horizontal feed screw 6 can be transmitted to the grinding wheel grinding system to drive the grinding wheel grinding system to move in the horizontal direction. Preferably, the horizontal feed nut 7 is made of brass.

Further, the horizontal feed system also includes two second horizontal support bars 16 and four horizontal support rings 15 . Two second horizontal support bars 16 are parallel to the ground and the steel rail axis simultaneously, and one end of each of the two second horizontal support bars 16 is respectively connected with the first horizontal feed support plate 26a, and the two second Each of the horizontal support bars 16 passes through the horizontal support rings fixedly arranged on the two horizontal feed nut fixing plates 25 in turn. When the horizontal feed screw 6 pushes/pulls the fixed plate of the feed system to move, the second horizontal support rod 16 slides relative to its corresponding two horizontal support rings 15, thereby controlling the movement of the grinding wheel grinding system in the horizontal direction play a supporting or guiding role.

Below in conjunction with accompanying drawing 1, 2 and 3, the working process of the rail bottom welding seam automatic grinding machine according to an embodiment of the present invention is described as follows: a plurality of pressing parts 2 are opened to a rail foot of rail 1 Snap into the card slot 33 for positioning; after the positioning is completed, rotate the rotating shaft 3 so that the pressing member 2 presses the rail head. At the same time, the other end of each of the plurality of pressing parts 2 is provided with a rail head locking screw 32 perpendicular to the axial direction of the rail and parallel to the ground to further lock the pressing part 2 with the rail head of the rail; The rail bottom locking screw 29 and the movable pressing block 31 on the shaft 30 lock the rail bottom; open the hydraulic motor 21 to start the grinding wheel 28 to work, and adjust the horizontal feeding system and the vertical feeding system according to the specific working conditions To adjust the grinding direction of the grinding wheel 28: when it is necessary to adjust the grinding position of the grinding wheel 28 in the horizontal direction, turn the horizontal feed handwheel 23 to drive the horizontal feed screw 6 to rotate, and the horizontal feed screw 6 and the horizontal feed nut 7 Cooperate with the movement to drive the fixed plate of the feed system to move, and the fixed plate of the feed system pushes/pulls the grinding wheel grinding system to move in the horizontal direction through the vertical feed screw 9; the grinding position of the grinding wheel 28 in the vertical direction needs to be adjusted , turn the vertical feed hand wheel 13 to drive the first synchronous pulley 12 and the second synchronous pulley 10 to rotate, and the first synchronous pulley 12 and the second synchronous pulley 10 drive the corresponding vertical feed screw 9 respectively Rotate, the vertical feed screw 9 cooperates with the vertical feed nut 17 to push/pull the emery wheel grinding system to move in the vertical direction, thereby completing the adjustment of the grinding position in the vertical direction.

Although exemplary embodiments of the present invention have been described, it will be apparent to those skilled in the art that changes may be made without departing from the spirit and principles of the present invention, the scope of which is defined in the claims and their equivalents limited.

Claims (13)

1. a Rail back welding seam automatic sander, it is characterised in that including:

Fixed mount, described fixed mount is used for fixing rail；

Wheel grinding system, described wheel grinding system is connected with described fixed mount, at the bottom of Rail Polish；

Vertical feed system, described fixed mount be connected with described vertical feed system with fixing described vertical enter To system, and described vertical feed system is connected to drive described wheel grinding with described wheel grinding system System moves along the direction being perpendicular to ground；With

Horizontal feed system, described fixed mount is connected with described horizontal feed system to enter with fixing described level To system, and described horizontal feed system is connected to drive described wheel grinding with described wheel grinding system System moves axially along rail.

Rail back welding the most according to claim 1 seam automatic sander, it is characterised in that described solid Determine frame to include:

Multiple fixed mount legs, the plurality of fixed mount leg is perpendicular to ground and parallel to each other；

Multiple fixed mount support plates, each in the plurality of fixed mount support plate connects the plurality of fixed mount and props up The top of corresponding two fixed mount legs in pin, and the plurality of fixed mount support plate is parallel to ground；

Strap, described strap connects two parallel fixed mounts in the plurality of fixed mount support plate The end of the same side of support plate, described strap is used for positioning rail；With

Multiple compressing members, the plurality of compressing member is connected with described strap by rotary shaft respectively, and institute State multiple compressing member and be perpendicular in rail axially direction parallel to each other, be used for clamping rail.

Rail back welding the most according to claim 2 seam automatic sander, it is characterised in that:

The cross section of described strap is Z-shaped shape, and the top horizontal limit of described Z-shaped shape Being connected with the plurality of fixed mount support plate, having at the bottom corners of described Z-shaped shape can be with rail The draw-in groove that flange of rail pin matches is to position rail；And

The top of each in the plurality of compressing member has the shape that can match with rail head of rail with right Rail head of rail is clamped, and one end of each in the plurality of compressing member is solid with described by rotary shaft Clamp plate is connected, the other end be provided perpendicular to rail axially and be parallel to the rail head lock-screw on ground with Described compressing member is locked with rail head of rail.

Rail back welding the most according to claim 3 seam automatic sander, it is characterised in that described solid The end on the bottom level limit of the described Z-shaped shape of clamp plate has downward vertical extension edge, described Vertically being provided with bearing pin on extension edge, described bearing pin is locked with the movable compact heap of top and the flange of rail of lower section respectively Tight screw is connected, and wherein said movable compact heap is for compressing and snap in the flange of rail pin of described draw-in groove about steel The rail bottom layer portion of rail axisymmetrical, described flange of rail lock-screw is for by described bearing pin and described vertical extension Limit is locked.

Rail back welding the most according to claim 2 seam automatic sander, it is characterised in that described sand Wheel grinding system includes:

First bracing frame, described first bracing frame respectively with described vertical feed system and described horizontal feed system System is connected, to drive described emery wheel under the driving of described vertical feed system and described horizontal feed system Grinding system is along being perpendicular to direction, ground and/or along rail axially-movable；

Second bracing frame, described second bracing frame is perpendicular to ground and is oppositely disposed with described first bracing frame In the lower section of described strap, and described second bracing frame respectively with described vertical feed system and described Horizontal feed system is connected；

Hydraulic motor, described hydraulic motor be arranged on described first bracing frame towards the one of described strap Side；

Multiple first horizontal strut bar, the plurality of first horizontal strut bar is parallel to ground, and the plurality of first One end of each in horizontal strut bar is connected with described first bracing frame, the other end and described second bracing frame It is connected；

Yielding coupling, described yielding coupling is arranged on the close described strap of described hydraulic motor Side, and one end of described yielding coupling is connected with the output of described hydraulic motor；

Grinding wheel spindle, described grinding wheel spindle is arranged on the side of the close described strap of described yielding coupling, And described one end of grinding wheel spindle is connected with the other end of described yielding coupling；

Polishing emery wheel, described polishing emery wheel is connected by the other end of grinding wheel chuck with described grinding wheel spindle, and Described polishing emery wheel is arranged on the lower section of described strap；With

Coupling guard, described coupling guard is sleeved on outside described yielding coupling, the one of described coupling guard End is connected with described hydraulic motor, the other end is connected with described second bracing frame, and described coupling guard The one end being connected with described hydraulic motor is provided with bell flange, and the plurality of first horizontal strut bar is parallel wears Cross described bell flange,

Wherein, described first bracing frame is connected with described vertical feed system, in described vertical feed Cooperatively drive described wheel grinding system along being perpendicular to ground under the driving of system with described second bracing frame Move in direction.

Rail back welding the most according to claim 5 seam automatic sander, it is characterised in that described beat The thickness of grinding abrasive disk is more than the transverse width at the bottom of Rail.

Rail back welding the most according to claim 5 seam automatic sander, it is characterised in that also include:

Feed system fixed plate, described feed system fixed plate is parallel to ground and is arranged on the plurality of fixed mount Between leg, described feed system fixed plate includes thicker strip wheel fixed plate, synchronous pulley fixed plate and two water Flat feed nut fixed plate, wherein said thicker strip wheel fixed plate, described synchronous pulley fixed plate and said two Horizontal feed nut fixed plate is linked in sequence in a rectangular shape, and described thicker strip takes turns fixed plate and described Timing Belt Wheel fixed plate is arranged each parallel to rail axial direction.

Rail back welding the most according to claim 7 seam automatic sander, it is characterised in that described vertical Straight-in feed system includes:

First synchronous pulley, described first synchronous pulley is arranged on the upside of described thicker strip wheel fixed plate, and described First synchronous pulley by through described thicker strip wheel fixed plate vertical feed screw be fixed on described first Vertical feed nut on support matches, thus drives described wheel grinding system to be perpendicular to the fortune on ground Dynamic；

Vertical feed handwheel, described vertical feed handwheel with through described first synchronous pulley described vertical enter It is connected to leading screw, drives solid to drive described vertical feed screw to rotate and to pass through described vertical feed screw Described first synchronous pulley being scheduled on described vertical feed screw rotates；With

Two the second synchronous pulleys, said two the second synchronous pulley is separately positioned on described synchronous pulley and fixes The upside of plate, and said two the second synchronous pulley vertical by through described synchronous pulley fixed plate respectively Feed screw matches with the vertical feed nut being fixed on described second bracing frame, and said two second Synchronous pulley is connected with at described first synchronous pulley with described first synchronous pulley by Timing Belt respectively It is rotated by, drives described wheel grinding system to be perpendicular to the motion on ground further.

Rail back welding the most according to claim 8 seam automatic sander, it is characterised in that described vertical Straight-in feed leading screw is each passed through the zanjon being arranged in described thicker strip wheel fixed plate and described synchronous pulley fixed plate Ball bearing.

Rail back welding the most according to claim 7 seam automatic sander, it is characterised in that described water Flat feed system includes:

First horizontal feed support plate and the second horizontal feed support plate, described first horizontal feed support plate and described Two horizontal feed support plates are perpendicular to rail in parallel with each other and are axially fixed on the plurality of fixed mount leg；

Horizontal feed leading screw, it is axial that described horizontal feed leading screw is parallel to rail, and described horizontal feed leading screw One end through described first horizontal feed support plate is connected with horizontal feed handwheel, the other end has screw thread； With

Horizontal feed nut, described horizontal feed nut is close with said two horizontal feed nut fixed plate One of described first horizontal feed support plate is fixing to be connected, and described horizontal feed nut and described horizontal feed The screw thread of the described other end of leading screw matches.

11. Rail back welding according to claim 10 seam automatic sanders, it is characterised in that described Horizontal feed system also includes:

Two the second horizontal strut bar, the horizontal strut bar of said two second is parallel to ground simultaneously and rail is axial, And the one end of each in the horizontal strut bar of said two second is connected with described first horizontal feed support plate respectively Connect, and each of which in the horizontal strut bar of said two second sequentially passes through and is fixedly installed on said two water Horizontal support ring in flat feed nut fixed plate.

12. Rail back welding according to claim 8 seam automatic sanders, it is characterised in that described vertical Straight-in feed nut is made up of brass.

13. Rail back welding according to claim 10 seam automatic sanders, it is characterised in that described Horizontal feed nut is made up of brass.