JP4817283B2 - Travel guide system for U-shaped groove cutting device - Google Patents

Description

  The present invention relates to a traveling guide system for traveling a U-shaped groove cutting device, and more particularly to a traveling guide system for a narrow U-shaped groove whose rotational radius varies widely at a curved portion.

  Generally, a traveling guide system of a cutting device attached inside a narrow U-shaped groove (for example, an inner width of 300 to 750 mm) has many curved portions with various turning radii as well as straight portions in the traveling path. Exists. Further, the inside of the U-shaped groove has a problem that the attached space is narrow and the environmental condition such as the waste water treatment of the cooling water is bad. At the same time, the radius of rotation at the curved portion is relatively large (for example, 5 mR or more) and the traveling speed is relatively slow (for example, 0.5 m / min) as compared with a general machine. In addition, in general machines, since there are usually many permanent facilities, a certain degree of investment is often permitted. However, the traveling guide system of the above U-shaped groove cutting device has a permanent cutting place. However, there is a problem that a simple travel guide system is desired from the viewpoint of ease of laying work, convenience of transporting the laying material, limit of investment, etc. . Currently, there are no patent documents related to the traveling system of the U-shaped groove cutting device having a narrow inner width, but Patent Documents 1 and 2 have been proposed as traveling systems for general machines.

Patent Document 1 and Patent Document 2 are used for stationary traveling guide systems for orchards, automatic machines, and various processing machines, respectively, both of which are pinion rack systems, and of course, straight section traveling as well as curved sections. It has a structure that can run. At the same time, the curved part requires many different radii of rotation, and there are many diverse curved parts, and a traveling guide system such as a U-shaped groove cutting device that always moves and performs cutting work. In order to apply to the above, it is necessary to prepare many kinds of rails, and the transportation is complicated and there is a problem in terms of cost.
JP-A-8-169333 Japanese Patent Laid-Open No. 10-324237

  In order to solve the above problems, the present invention adopts a sprocket wheel and a chain system, and includes two types of linear travel guide system blocks that differ only in length, whether they are straight portions or curved portions having various turning radii. It is an object of the present invention to provide a travel guide system that is simple and can smoothly travel a U-shaped groove cutting device by connecting.

  According to the present invention, in the U-groove traveling guide system for causing the cutting device (31) that cuts the upper portion of the U-shaped groove (3) to travel along the U-shaped groove (3), it is attached to the straight portion. A first travel guide system block (1) having a predetermined length and a second travel guide system block (2) attached to the curved portion and having a length different from that of the straight line portion. The guide system blocks (1, 2) are both fixed on the center line of the width of the U-shaped groove (3), and the both travel guide system blocks (1, 2) have guide portions (6) on both sides. The linear traveling rail (4) having, the guide claws (21, 22) for connecting both ends of the traveling rail (4), and the guide portion (6) are rotated and the cutting device (31) is rotated. The attached guide roller (11) and the running And a receiving sprocket wheel (16a, 16b, 17a, 17b) which is attached to the upper part of both ends of the rail (4) and has two coaxial upper and lower sides, and a feeding sprocket wheel (16a, 16b). The upper and lower two can rotate at the same time, and the receiving side sprocket wheel (17a, 17b) can rotate separately at the upper and lower two, and between the one of the feeding sprocket wheels (16a, 16b) The cutting device (3) includes two upper and lower drive sprocket wheels (24a, 24b) connected to the output shaft (35) of the feed drive device (34). And one of the sprocket wheels (24b) meshes with the feed chain (18), and the feed sprocket wheel It is connected by a (16a) the receiving side of the sprocket wheel and (17b) and is over the chain (30).

  Therefore, according to the present invention, not only a straight portion but also a curved portion having a wide range of turning radii can be smoothly traveled by simply connecting a plurality of linear guide rails of appropriate travel guide system blocks. In a narrow inner width, in a U-shaped groove with poor environment such as waste water treatment after cutting, there is an effect that it is simple in structure, easy to carry, and easy to install.

  In addition, according to the present invention, it is possible to eliminate the correction of the position of the driving sprocket wheel that occurs when the curved portion passes between the traveling guide system blocks by a correction device, thereby realizing safe and smooth traveling. There is an effect that can be done.

  Furthermore, according to the present invention, by installing guide claws that connect the travel guide system blocks, the guide roller can be prevented from biting at the seam when passing through the curved portion, and smooth travel can be achieved. .

  The U-shaped groove cutting device has already been proposed by the present applicant as Japanese Patent Application No. 2005-5903 (see Japanese Patent No. 4445422). As shown in FIG. 11, the cutting device 31 is roughly divided into a cutting machine main body 32 for cutting the U-shaped groove, a cutting drive device 33 for cutting, and a feed for running the cutting device. The drive unit 34 is configured. The travel guide system of the present invention is configured to travel while operating the cutting device 31 by the rotation of the drive sprocket wheel 24 installed on the output side of the feed drive device 34. Here, an embodiment using the cutting device 31 will be described with reference to the drawings.

  FIG. 1 is a plan view showing the overall arrangement of the present invention. The traveling guide system of the U-shaped groove cutting device 31 includes a traveling guide system block 1 that is applied at a straight portion of the U-shaped groove, and a plurality of traveling guide system blocks 2 that are applied at a curved portion. The travel guide system block 1 is divided into an appropriate length (for example, 2 m) so that transportation is convenient, and the travel guide system block 2 is considered to have an appropriate length (for example, a rotation radius) in consideration of the rotation radius. When it is 5 m or less, it is divided into 1 m) and is composed of a plurality of travel guide system blocks 2 (for example, 9 blocks in the case of a travel radius of 5 m and a travel range of 90 degrees). The travel guide system blocks 1 and 2 have the same structure, but differ only in length.

  2 is a detailed plan view of the travel guide system block, and FIG. 3 is a detailed front view thereof. As described above, since both the traveling system blocks 1 and 2 are different in length and the configuration is the same, FIG. 2 representatively describes the configuration only for the traveling guide system block 1. In the figure, reference numeral 3 denotes a U-shaped groove, and reference numeral 4 denotes a traveling rail. The traveling rail 4 is a square steel pipe 5 and a pair of equilateral angle steel joined to both side surfaces 5a and 5b of the square steel pipe 5 by welding. The bottom surface of the square steel pipe 5 that constitutes the rail 4 is fixed to the upper surface of the central fixing portion 8 of the jack 7. The jack 7 is composed of a center fixing portion 8, expansion / contraction portions 9, 9 that expand / contract in the left / right direction from the center fixing portion 8, and pressing members 10, 10 at both ends of the expansion / contraction portions 9, 9. By applying a force in the extending direction to 9, both the left and right pressing parts 10, 10 press a predetermined position in the height direction of the inner side surface 3 a of the U-shaped groove 3 and are fixed to both jacks 7, 7. The position in the height direction of the inner side surface 3a of the U-shaped groove 3 of the rail 4 is determined. The four guide rollers 11 attached to the tips of the gantry legs of the cutting device 31 engage with the guide portions 6 and 6 of the rail 4 and travel along the rail 4. Sprocket seats 12 and 13 are fixed to the feeding side (left side in the figure) and the receiving side (right side in the figure) of the upper surfaces of both ends of the rail 4, respectively. Through 15, sprocket wheels 16 and 17 are rotatably attached. The sprocket wheels 16 and 17 will be described in detail with reference to FIG. The sprocket wheels 16 and 17 are meshed with and connected to a feed chain 18, and both ends of the feed chain 18 are extended and fixed by contraction devices 19 and 20, respectively. Further, guide claws 21 and 22 for connecting adjacent traveling guide system blocks are fixed to both ends of the traveling rail 4 by welding.

FIG. 4 is a detailed plan view in the vicinity of the joint between the travel guide system blocks, and FIGS. 4A and 4B show states at a straight line portion and a curved portion, respectively. FIG. 5 shows an AA cross-sectional arrow view of FIG. In these drawings, a connecting structure of a straight traveling guide system block 1 and a curved traveling guide system block 2 is shown. The sprocket wheel 16 on the feed side is composed of two sprocket wheels 16a and 16b on the upper side and the lower side, and has a structure that can be rotated separately.
The receiving sprocket wheel 17 is composed of two upper and lower sprocket wheels 17a and 17b and has a structure that can rotate simultaneously. In both the travel guide system blocks 1 and 2, the feed chain 18 is meshed between the above-described sprocket wheels 16 b and 17 b on the receiving side and the sprocket wheels 16 and 17 on the feeding side, and both ends of the feeding chain 18 are engaged. The tensioning devices 19 and 20 are tensioned and fixed, and are attached to the output side of the feed driving device 34 of the cutting device 31, and as shown in FIG. The middle and lower sprocket wheels 24a mesh with each other, and the cutting device 31 travels. The upper sprocket wheel 16a on the feeding side and the upper sprocket wheel 17a on the receiving side are engaged with the transition chain 30 during installation, and are connected in tension by the contraction device 23. Further, in order to avoid loosening of the crossover chain 30 at the curved portion, chain guides 25 and 25 are welded onto the rails 4 and 4 so that the looseness of the crossover chain 30 at the curved portion can be corrected. .

  Next, the structure and connection state of the guide claws 21 and 22 of the joint portion will be described. 6 is an illustration of the guide claws 19 and 20, FIG. 7 is a plan view showing the connected state of the guide claws of the joint, and FIG. 8 is a cross-sectional view of FIG. In the two travel guide system blocks 1 and 2, the guide claws 21 and 22 are connected by a pin 26. In the figure, reference numerals 21a and 22a denote pin holes, respectively. FIG. 7 shows the connection at the curved portion. In any case, the surfaces of the guide portions 6 and 6 are connected by a continuous surface, so that smooth running is possible.

Next, position correction of the driving sprocket wheel 24 in the curved portion will be described.
FIG. 9 shows the relationship between the position of the cutting device 31 and the position of the driving sprocket wheel at the straight line portion and FIG. 10 at the curved line portion. Now, assuming that the distance between the center line of the cutting device and the center of the driving sprocket wheel 24 in the straight line portion is Q, the curve portion is P, and the difference P−Q = E is deviated. Since it changes between FIG. 9 and FIG. 10, the position of the driving sprocket wheel 24 cannot move away from the center of the cutting device unless it is automatically moved by E.

  For the reasons described above, a front view of the sprocket position correction device attached to the output shaft 35 of the feed drive device 34 of the cutting device 31 and its AA arrow in order to perform automatic correction of the sprocket position caused by FIGS. The visual views are shown in FIGS. 11 and 12, respectively. In the figure, the gear 26 attached to the tip of the output shaft 35 of the feed driving device 34 meshes with the next gear 27 to drive the driving sprocket wheels 24a, 24b. An arm 28 is attached to the upper portion of the gear 26 to the output shaft 35, and the arm 28 is configured to be rotatable about the output shaft 35, and the tip of the arm 28 is freely contractible by a spring 29. It has a structure that can be done. Therefore, when passing through the curved portion, the center of the driving sprocket wheel 24 is automatically corrected and moved by the rotation of the arm 28 and always coincides with the center of the cutting device 31. The device 31 can smoothly travel on the rail 4 of the travel guide system.

  Next, the operation | movement at the time of driving | running | working of the cutting device 31 is demonstrated. Initially, when on the travel guide system block 1, the lower drive sprocket wheel 24 b on the output side of the feed drive device 34 is engaged with the feed chain 18, and the rotation of the drive sprocket wheel 24 The cutting device 31 travels in the direction of the next travel guide system block 2. At the transition portion of the travel guide system block, the upper drive sprocket wheel 24a and the transition chain 30 mesh with each other, and the cutting device 31 continues traveling. In the curved portion, as described above, the automatic correction device is appropriately operated, and smooth running is possible. When the next travel guide system block 2 is entered, the feed chain 18 again meshes with the lower drive sprocket wheel 24b, and the cutting device 31 travels by the travel guide system.

The top view which shows the whole arrangement | positioning of a present Example. FIG. 3 is a detailed plan view of a travel guide system block. The front view of FIG. The detailed plan view of the vicinity of the joint. FIG. 4A is a cross-sectional view of FIG. Illustration of joint nails. The top view which shows the connection state of the nail | claw of a joint part. FIG. 8 is a cross-sectional arrow view of FIG. 7. Explanatory drawing when a cutting device passes a straight part. Explanatory drawing when a cutting device passes a curved part. The front view of the position correction apparatus of a drive sprocket. FIG. 12 is an AA arrow view of FIG. 11.

DESCRIPTION OF SYMBOLS 1 ... Straight part travel guide system block 2 ... Curve part travel guide system block 3 ... U-shaped groove 4 ... Travel rail 5 ... Square steel pipe 6 ... Angle steel 7 ... Jack 8 ... Jack central fixing part 9 ... Expandable part 10 ... Pressing member 11 ... Guide roller 12 ... Sprocket seat 13 ... Sprocket seat 14 ... Axis 15 ... Axis 16 ... Sprocket wheel 17 ... Sprocket wheel 18 ... Feed chain 19 ... Constriction device 20 ... Constriction device 21 ... Guide claw 21a ... Pin hole 22 ... Guide claw 22a .... Pin hole 23 ... Contraction device 24 ... Drive sprocket wheel 25 ... Chain guide 26 ... Gear 27 ... Gear 28 ... Arm 29 ... Spring 30 ... Crossover chain 31 ... off 32 ... cutting machine body 33 ... cutting drive 34 ... feed drive device 35 ... Output shaft

Claims (4)

In the U-groove traveling guide system for causing the cutting device (31) for cutting the upper portion of the U-shaped groove (3) to travel along the U-shaped groove (3), a predetermined length attached to the linear portion is provided. The first traveling guide system block (1) and the second traveling guide system block (2) attached to the curved portion and having a length different from that of the linear portion, and both the traveling guide system blocks (1, 2) are fixed on the center line of the width of the U-shaped groove (3), and both the travel guide system blocks (1, 2) are linear travel rails having guide portions (6) on both side surfaces. (4), guide claws (21, 22) for connecting both ends of the traveling rail (4), and guide rollers (21) rotated by the guide portion (6) and attached to the cutting device (31) 11) and the travel rail (4) It is provided with a receiving side and feeding sprocket wheels (16a, 16b, 17a, 17b) which are attached to the upper part of the end portion and are composed of two coaxial upper and lower parts, and the feeding sprocket wheels (16a, 16b) are two upper and lower parts Can be rotated at the same time, and the receiving sprocket wheels (17a, 17b) can be rotated separately at the upper and lower parts, and a feeding chain in which one of the feeding sprocket wheels (16a, 16b) is connected. (18), and the cutting device (3) is provided with two upper and lower drive sprocket wheels (24a, 24b) connected to the output shaft (35) of the feed drive device (34), One sprocket wheel (24b) meshes with the feeding chain (18), and further, the feeding sprocket wheel (16a) and the front Running guide system of the U-shaped groove cutting apparatus characterized by receiving side of the sprocket wheel and (17b) are connected by a chain (30) over. The guide claws (21, 22) at both ends of the first and second travel guide system blocks (1, 2) are provided with pin holes (21a, 22a), respectively, and adjacent travel guide system blocks (1, 2). ) Guide claws (21, 22) are stacked one above the other and the pins (26) are inserted into the pin holes (21a, 22a) of the guide claws (21, 22), thereby the first and second The travel guide system of the U-shaped groove cutting device according to claim 1, wherein the travel guide system blocks (1, 2) are connected to each other. The travel guide system for a U-shaped groove cutting device according to claim 1, wherein both ends of the feeding chain (18) are fixed by being stretched by a contraction device (19, 20). 2. The U-shape according to claim 1, wherein the sprocket wheel (16a) on the feeding side and the sprocket wheel (17a) on the receiving side are engaged with the cross chain (30) during installation and are tensioned and connected to another contraction device (23). Travel guide system for groove cutting device.

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