CN108000611A - A kind of railway track plate expansion joint environmental protection cutting and elimination saw - Google Patents

Abstract

The invention belongs to the field of railway construction, and in particular relates to an environment-friendly cutting and cleaning saw for expansion joints of railway track slabs. It includes a saw body, a power shaft set in the saw body, a saw block sleeved on the power shaft, a protective cover fixed on the saw body and covered on the saw block, and hinged to the protective cover The adjustable bracket on the saw block body includes a slotting saw block in the center and grinding saw blades clamped on both sides of the slotting saw block. The grooving saw block includes a single saw blade which is stacked with multiple pieces. In this application, the grinding saw blades on both sides are superimposed with multiple single saw blades in the middle, so as to directly plan the foam plastic in the seam at one time, and when the excess concrete on both sides is encountered, it is directly polished off by the grinding saw blades , all the dust from planing or grinding is collected, and the whole seam is neatly sawed out in one go. At the same time, the whole seam is straight after sawing, and there is no dust that needs to be cleaned again, which greatly saves time and improves efficiency. .

Description

Environmentally friendly cutting and cleaning saw for expansion joints of railway track slabs

technical field

The invention belongs to the field of railway construction, and in particular relates to an environment-friendly cutting and cleaning saw for expansion joints of railway track slabs.

Background technique

The conventional high-speed railway adopts a new type of slab type CRTSⅢ slab ballastless track. It is composed of parts; the base is a reinforced concrete structure, and a double-layer steel welded mesh is used. The width of the base (horizontal) expansion joint is 20mm, and it is filled with polystyrene foam board, which is pre-buried into the base during construction; after the construction of the base is completed, a 20mm×20mm joint is cut at the expansion joint, and silicone caulking is used The material is sealed. Conventional method of expansion joint treatment The excess concrete on both sides of the expansion joint should be removed bit by bit with a hammer, chisel and angle grinder, such as grinding a little bit or lifting a little bit before digging out the edge, which is time-consuming and laborious, and after digging and grinding, the inside of the joint The excess foam, debris, gravel, etc. should be cleaned with an angle grinder and a flat-head screwdriver. Above-mentioned operation is troublesome, and operation is inconvenient, and environmental pollution is big.

Contents of the invention

The object of the present invention is to provide an environment-friendly cutting and cleaning saw for expansion joints of railway track slabs to solve the above problems.

Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

An environmentally friendly cutting and cleaning saw for railway track plate expansion joints, comprising a saw body, a power shaft disposed in the saw body, a saw block sleeved on the power shaft, fixed on the saw body and covered by the saw body A protective cover on the saw block body and an adjustable bracket hinged on the protective cover, the saw block body includes a cutting saw block located in the center and grinding saw blades clamped on both sides of the cutting saw block.

Preferably, the cutting saw block includes a plurality of single saw blades superimposed on each other.

Preferably, the top of the rear side of the protective cover is provided with a dust suction hole column communicating with the cavity of the protective cover, a pipe is connected to the dust suction hole post, and the end of the pipe is connected to a dust suction device.

As a preference, the power shaft is provided with a socket seat that is socketed with the saw block, and the socket seat is provided with a socket shaft, an internal pressure plate and an external pressure plate that are screwed and matched with the socket shaft. Cover, the saw block is sleeved on the sleeve shaft, the center of the sleeve shaft is provided with a screwed post with an inner screw hole and beyond the sleeve shaft, and the outer peripheral surface of the screwed post An anti-deflection cut surface is provided, and the center of the inner pressure plate and the outer gland is provided with a through hole adapted to the outer surface of the bolted column, and the outer gland is provided with a Nuts for threaded studs.

As a preference, a ring of pressing edge protruding on the saw block body is provided on the inner periphery of the outer gland cover, and the pressing edge is sleeved outside the sleeve shaft and pressed on the saw block body. On the outer surface, the length of the socket shaft is not less than the sum of the thicknesses of the two grinding saw blades and the eight cutting saw blocks.

Preferably, the outer peripheral surface of the sleeve shaft is provided with a positioning cut surface to prevent relative sliding between adjacent single saw blades or between the grinding saw blade and the single saw blade, and the central socket hole of the single saw blade and the grinding saw blade There is a straight edge that matches the positioning cut surface; or at least two limit piercing columns are symmetrically provided on the socket, and the single saw blade and the grinding saw blade are correspondingly provided with holes for passing through the The limit hole of the above-mentioned limit through the column.

Preferably, the rear end of the adjustable bracket is hinged to the protective cover, and the front end is adjustable connected to the protective cover through an arc bar with a straight through hole.

Preferably, the adjustable bracket includes a main board, two marking slats arranged on the bottom surface of the main board and located on both sides of the saw block, at least the front end of the marking slats exceeds the front end of the main board to form a marking segment, the main board shown There are through holes for passing through the saw block body, and the front and rear parts of the main board are perpendicular to the marking section and are provided with slotted holes for installing marking slats, and are at least close to the marking on the outer end of the power shaft. The slats are adjustably connected to the slotted holes.

As a preference, a gland positioning hole that goes deep into the socket shaft is opened on the end surface of the sleeve shaft facing the outer gland, and a gland inserted into the gland positioning hole is provided in the outer gland Inserting strips, the gland inserting strips are shrunk inside the outer gland relative to the pressing edge.

Preferably, the gland positioning hole is an arc-shaped hole arranged coaxially with the socket shaft, the gland insert is an arc-shaped insert with an arc-shaped cross section, and the arc length of the arc-shaped insert is short Based on the arc length of the arc-shaped hole, the single saw is a woodworking saw blade, and the single saw blade includes sub-pieces and mother pieces arranged alternately, and each side of the sub-piece is symmetrically protruded with a plug-in post , the mother piece is provided with two insertion holes that can be inserted into the insertion column, the height of the insertion column is less than the thickness of the found single saw blade, and the grinding saw blade is provided with an insertion hole and a Plug post.

In summary, the present invention has the following beneficial effects:

1. This application uses the grinding saw blades on both sides of the superposition of multiple single saw blades in the middle, so as to directly plan the foam plastic in the seam at one time, and when encountering excess concrete on both sides, directly pass through the grinding saw blades Grinding off, all the dust that has been planed or polished is collected by the protective cover, the dust suction hole column and the pipe under the action of the dust suction equipment. In one go, the entire seam is sawed out neatly, and the entire seam is sawed at the same time Straight without dust that needs secondary cleaning, which greatly saves time and improves efficiency. In this application, the width of the entire saw block is controlled by superimposing the number of single saw blades, so that it is suitable for opening joints of different sizes, has wide adaptability, strong adjustability, and is easy to disassemble and assemble. This application realizes that the single saw blades cannot slide relative to each other by positioning the cutting surface or the setting of the child and mother blades, so as to ensure that the saw blades do not slip, thereby ensuring efficient and effective one-time cutting (that is, joint opening). This application also uses the design of the marking slats to allow the operator to align the seam more intuitively for cutting, to ensure accurate alignment and straight cutting, which greatly improves the efficiency, and the marking slats can be adjusted according to the width of the seam It can be adjusted according to the width of the saw block to ensure accurate straight line.

2. The specific matching relationship between the socket seat, socket shaft, inner pressure plate and outer gland of this application is not only convenient for installation, but also suitable for the setting of single saw blades with different numbers of blades. It is easy to adjust and ensure installation. Positioning stability, easy alignment.

3. The present application has the advantages of simple structure, convenient processing, low cost and convenient operation.

Description of drawings

Figure 1 is a schematic diagram of the structure of the application;

Figure 2 is a schematic diagram of the second structure of the application;

Fig. 3 is a schematic view of the partial structure of the present application;

Fig. 4 is a schematic diagram of the cooperation structure of the socket socket and other components;

Fig. 5 is a schematic diagram of the socket structure;

Fig. 6 is a structural schematic diagram of a single saw blade and a polished saw blade with a straight edge;

Fig. 7 is a structural schematic diagram of a single saw blade and a polished saw blade for limiting holes;

Fig. 8 is a schematic diagram of the structure of the socket socket with a limit piercing column;

Fig. 9 is a schematic diagram of the structure of the mother sheet;

FIG. 10 is a schematic diagram of a sub-slice structure.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

Embodiment one:

An environmentally friendly cutting and cleaning saw for railway track plate expansion joints, characterized in that it includes a saw body 1, a power shaft disposed in the saw body, a saw block sleeved on the power shaft, fixed on the saw body and The protective cover 2 covered on the saw block body, the adjustable bracket 3 hinged on the protective cover, the saw block body includes the cutting saw block 4 located in the center and the cutting saw block clamped on the cutting saw Grinding saw blades 5 on both sides of the block.

The grooving saw block includes a plurality of single saw blades 41 stacked together. The top of the rear side of the protective cover is provided with a dust suction hole column 61 communicating with the cavity of the protective cover. A pipe 62 is connected to the dust suction hole column, and a dust suction device 63 is connected to the end of the pipe.

The power shaft is provided with a socket seat 71 which is socketed with the saw block, and the socket seat is provided with a socket shaft 72, an inner pressure plate and an outer gland which are screw-fitted with the socket shaft 73. The saw block is sleeved on the sleeve shaft, and the center of the sleeve shaft is provided with a screwed post 74 with an inner screw hole and beyond the sleeve shaft. The outer peripheral surface of the screwed post There is an anti-deflection cut surface 75 on it, and the center of the inner pressure plate 77 and the outer gland is provided with a through hole adapted to the outer surface of the bolted column, and the outer gland is provided with a The nut 76 to which the threaded column is threaded.

The inner periphery of the outer gland is provided with a circle of pressing edge 731 which protrudes and presses on the saw block body, and the pressing edge is sleeved outside the sleeve shaft and pressed against the outer surface of the saw block body Above, the length of the sleeve shaft is not less than the sum of the thicknesses of the two grinding saw blades and the eight cutting saw blocks.

Embodiment two:

The difference from the above embodiment is that the outer peripheral surface of the socket shaft is provided with a positioning cut surface to prevent relative sliding between adjacent single saw blades or between the grinding saw blade and the single saw blade. The central socket hole is provided with a straight edge portion 51 matching the positioning cut surface; or at least two limit piercing posts 711 are symmetrically provided on the socket seat, and the single saw blade and the grinding saw blade correspond to each other. A limiting hole 52 for passing through the limiting through column is opened.

Embodiment three:

The difference from the above embodiments is that the rear end of the adjustable bracket is hinged to the protective cover, and the front end is adjustable connected to the protective cover through an arc bar 8 with a straight through hole.

Described adjustable bracket comprises main board 31, is located on the bottom surface of main board and is positioned at two marking slats 32 on both sides of the saw block body, at least the front end of the marking slats exceeds the front end of the main board to form a marking segment 321, shown on the main board There are through holes for passing through the saw block body, and the front and rear parts of the main board are perpendicular to the marking section and are provided with slotted holes for installing marking slats, and are at least close to the marking on the outer end of the power shaft. The slats are adjustably connected to the slotted holes.

Embodiment four:

The difference from the above embodiment is that the end surface of the sleeve shaft facing the outer gland has a gland positioning hole 722 that goes deep into the sleeve shaft, and the outer gland is provided with a The gland inserting strip 732 of the positioning hole, the gland inserting strip shrinks inside the outer gland relative to the pressing edge.

Embodiment five:

The difference from the above embodiment is that the gland positioning hole is an arc-shaped hole coaxial with the sleeve shaft, the gland insert is an arc-shaped insert with an arc-shaped cross section, and the arc-shaped insert The arc length is shorter than the arc length of the arc hole. The single saw is a woodworking saw blade. The single saw blade includes sub-pieces and mother pieces arranged alternately. The two sides of the sub-pieces have symmetrical protrusions. There is a plug-in post 51, and two plug-in holes 52 that can be inserted into the plug-in post are provided on the mother sheet. The post height is less than the thickness of the found single saw blade. An insertion hole and an insertion post are arranged on the grinding saw blade. Thus, the grinding saw blade can be plugged with both the daughter blade and the mother blade.

The plug-in posts and plug-in holes on the mother-child blades are set according to the teeth of the saw blades, ensuring that after the mother-child blades are plugged together, the teeth on adjacent saw blades do not overlap, but are staggered, thereby improving the cutting efficiency. As a result, the undercut is cleaner and more uniform.

In this application, the grinding saw blades on both sides are superimposed with multiple single saw blades in the middle, so as to directly plan the foam plastic in the seam at one time, and when encountering excess concrete on both sides, it is directly polished off by the grinding saw blades , all the dust that is planed or polished is collected by the protective cover, the dust suction hole column and the pipe under the action of the dust suction equipment, and the whole seam is sawed out in one go, and the whole seam is straight and seamless after sawing. The miscellaneous dust that needs to be cleaned up again greatly saves time and improves efficiency.

Claims (10)

1. A kind of 1. railway track plate expansion joint environmental protection cutting and elimination saw, it is characterised in that：Including saw body（1）, arranged on saw body body Interior line shaft, the saw block being sheathed on line shaft, be fixedly arranged on the saw body and cover at anti-on the saw block Shield（2）, the adjustable support that is articulated with the protective cover（3）, slotting saw block of the saw block including being located at center（4）With It is located in the polishing saw blade of the slotting saw block both sides（5）.
2. A kind of 2. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 1, it is characterised in that：The slotting Sawing block includes single saw blade that multi-disc overlapping is set（41）.
3. A kind of 3. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 2, it is characterised in that：The protection Cover backside top is equipped with the dust suction hole post communicated with the protective cover cover chamber（61）, pipeline is connected with the dust suction hole post （62）, the pipe end connection dust collection equipment（63）.
4. A kind of 4. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 3, it is characterised in that：The power Axis is equipped with the covered joint seat with the saw block socket（71）, the covered joint seat is equipped with socked shaft（72）And the socked shaft The clip plate of threaded（77）And outer press cover（73）, it is described saw block be sheathed on the socked shaft, the socket axis center Equipped with the column with inner bolt hole and beyond the socked shaft that is spirally connected（74）, the column outer circumferential surface that is spirally connected is equipped with anti-deflection section （75）, clip plate and the outer press cover center offers the through hole being adapted to the outer surface of column that is spirally connected, is set on the outer press cover There is the nut being spirally connected through the outer press cover and the column that is spirally connected（76）.
5. A kind of 5. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 4, it is characterised in that：The external pressure Lid inner side week is along equipped with the raised circle pressure edge being pressed on saw block（731）, the pressure edge is sheathed on outside the socked shaft simultaneously It is pressed on the outer surface of the saw block, the length of the socked shaft saws the thickness of blocks not less than two panels polishing saw blade and 8 slottings The sum of degree.
6. A kind of 6. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 3, it is characterised in that：The socket Axis outer circumferential surface be equipped with prevent between adjacent single saw blade or between polishing saw blade and single saw blade opposite slip positioning section, it is described The center sleeve joint hole of single saw blade and saw blade of polishing is equipped with and the matched straight flange portion in the anti-deflection section（51）；Or the set Two spacing prick posts are at least arranged with joint chair（711）, the list saw blade and polishing saw blade are accordingly offered for being pierced by The limit hole of the spacing prick post（52）.
7. A kind of 7. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 1, it is characterised in that：It is described adjustable Back-end support is hinged with the protective cover, and front end passes through the arc strip with a word through hole（8）Company is adjusted with the protective cover Connect.
8. A kind of 8. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 7, it is characterised in that：It is described adjustable Stent includes mainboard（31）, on mainboard bottom surface and positioned at two sign laths of saw block both sides（32）, the dial plate Bar at least front end forms sign section beyond the mainboard front end（321）, offer on shown mainboard for being pierced by the saw block Through hole, the front and rear of the mainboard offers the word length hole for installing sign lath perpendicular to the sign section, And the sign lath at least adjacent to line shaft outer end is adjustably coupled on the word length hole.
9. A kind of 9. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 5, it is characterised in that：The socket Towards being provided with the gland location hole that gos deep into the socked shaft on the end face of the outer press cover on axis（722）, set in the outer press cover There is the gland cutting for being inserted into the gland location hole（732）, the gland cutting is relative to the pressure along shrinking in the outer press cover It is interior.
10. A kind of 10. railway track plate expansion joint environmental protection cutting and elimination saw according to claim 9, it is characterised in that：The pressure Lid location hole is the arcuate socket that is coaxially disposed with socked shaft, and the gland cutting is the arc-shaped arc cutting in cross section, and arc The arc length of shape cutting is shorter than the arc length of arcuate socket, and single saw is woodworking saw blade, and the list saw blade includes alternate set The sub-pieces and master slice put, the unilateral symmetrical each protrusion in both sides of the sub-pieces have an inserting column（51）, the master slice is equipped with can It is inserted into two spliced eyes of the inserting column（52）, the inserting column is highly less than the thickness for finding single saw blade, the polishing Saw blade is equipped with a spliced eye and an inserting column.