PCCP pipeline cutting mechanism

Abstract

The utility model discloses a kind of PCCP pipeline cutting mechanisms, belong to pipeline cutting technical field, the mechanism includes installation shell, mobile roller, adjusting assembly, cutting assembly, sleeve joint chain and mobile assembly, by the adjusting assembly and cutting assembly of being set, by the fixing of cutting knife can be carried out through compression cap, by the replacement of cutting knife can be conveniently carried out through the compression cap of being taken off, by the rotation of second driving motor rotation driving cutting knife to be able to cut PCCP pipeline, electric telescopic link elongation and shorten to be able to make cutting knife move up and down, adjust cutting depth, by the resistance of sliding plate in slide rail Internal linear displacement change resistance, form voltage divider circuit, output voltage signal proportional to displacement, to be able to detect the lifting distance of cutting knife, to accurately control the lifting of cutting knife, first driving motor rotation again cooperation speed reducer drive power sprocket rotation, to be able to cooperate sleeve joint chain so that the mechanism moves.

Description

Technical Field

[0001] This utility model belongs to the field of pipe cutting technology, specifically, it relates to a PCCP pipe cutting mechanism. Background Technology

[0002] Cutting large PCCP (prestressed concrete cylinder pipe) pipes usually requires specialized equipment. The pipe-climbing cutting and beveling machine automatically crawls along the outer wall of the pipe to complete circumferential cutting and beveling.

[0003] Chinese invention patent CN109396526A discloses a climbing tube cutting and beveling machine, including a frame, a climbing wheel assembly mounted on the frame base plate, a drive mechanism, and a cutting mechanism. The drive mechanism and the cutting mechanism are both mounted on the frame. The drive mechanism includes a drive motor, a reducer, and a drive gear connected to the output shaft of the reducer. The tool holder, the tool, and the pressure pad each have several corresponding pin holes. A drive pin is sequentially embedded into the pin holes of the tool holder, the tool, and the pressure pad. The frame base plate has a first mounting plate, a second mounting plate, and a third mounting plate that are parallel to each other. The second sprocket is mounted on the second mounting plate of the frame through a sliding block. The climbing wheel assembly includes a guide wheel, two connecting rods, a climbing wheel, and a side rail wheel.

[0004] The existing technology has the following drawbacks: the existing pipe-climbing cutting and beveling machine requires manual rotation of the screw to adjust the cutting blade downwards. As a result, when facing PCCP pipes with thick walls, it is impossible to accurately control the cutting depth of a single turn. If the adjustment is too deep, it will easily damage the cutting blade, and if the adjustment is too shallow, it will reduce the cutting efficiency. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problems mentioned in the background section regarding existing pipe-climbing cutting and beveling machines, which require manual rotation of the screw to adjust the cutting blade downwards, making it difficult to accurately control the cutting depth of a single turn when dealing with thicker PCCP pipes, and causing damage to the cutting blade if the adjustment is too deep, or reduced cutting efficiency if the adjustment is too shallow, this invention adopts the following technical solution.

[0007] A PCCP pipe cutting mechanism includes a mounting housing, with movable rollers detachably connected to the four corners of the bottom of the mounting housing. An adjustment component is installed inside the mounting housing, and a cutting component is installed on the adjustment component. The cutting component cuts the PCCP pipe. The adjustment component causes the cutting component to move up and down. A connecting chain is fitted onto the outer wall of the PCCP pipe. A moving component is installed inside the mounting housing, and the moving component, in conjunction with the connecting chain, causes the mechanism to move along the outer wall of the PCCP pipe.

[0008] Preferably, mounting brackets are detachably connected to both sides of the bottom inner side of the mounting housing, and a pressure sprocket is rotatably connected inside the mounting brackets on both sides. A tensioning assembly is installed on the top inner side of the mounting housing. The tensioning assembly tightens the sleeve chain and gives the mounting housing a pressure force on the PCCP pipe.

[0009] Preferably, the moving component includes a first drive motor, a reducer, and a power sprocket. The first drive motor is detachably connected to the bottom inner side of the mounting housing. The reducer is detachably connected to the rotating end of the first drive motor. The output shaft of the reducer is detachably connected to the power sprocket, and the power sprocket meshes with the sleeve chain.

[0010] Preferably, the tensioning assembly includes a gantry frame, a tensioning sprocket, a sliding limit rod, an adjusting screw, and a hexagonal head. The upper end of the mounting housing is threadedly connected to an adjusting screw inserted into the mounting housing. The insertion end of the adjusting screw is rotatably connected to the gantry frame. The upper end of the adjusting screw is fixedly connected to a hexagonal head. The upper two sides of the gantry frame are fixedly connected to sliding limit rods that protrude from the mounting housing. Tensioning sprockets are rotatably connected to the bottom of the vertical sides of the gantry frame. A sleeve chain passes through and engages with the pressure sprockets on both sides from below, and then passes through and engages with the tensioning sprockets on both sides from above. The sleeve chain passes through the bottom of the drive sprocket.

[0011] Preferably, the cutting assembly includes a second drive motor, a cutting blade, and a clamping cap. The second drive motor is installed inside the mounting housing. The cutting blade is detachably connected to the rotating shaft of the second drive motor, and the clamping cap is detachably connected to the rotating shaft of the second drive motor. The clamping cap fixes the cutting blade to the rotating shaft.

[0012] Preferably, the adjustment assembly includes a notch, a resistance slide rail, a mounting base plate, a connecting vertical plate, a sliding plate, and an electric telescopic rod. A notch is provided near the edge of the bottom inner side of the mounting housing. The resistance slide rail is detachably connected to the upper ends of the bottom inner side of the mounting housing on both sides of the notch. The bottom of the second drive motor is detachably connected to the mounting base plate. The connecting vertical plates are fixedly connected to the outer walls of both sides of the mounting base plate. The sliding plates are fixedly connected to the upper ends of the connecting vertical plates on both sides. The two ends of the sliding plates extend beyond the connecting vertical plates and slide inwardly connected to the resistance slide rail. An electric telescopic rod is detachably connected to the top inner side of the mounting housing. The telescopic end of the electric telescopic rod is detachably connected to the upper end of the sliding plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through the set adjustment and cutting components, the cutting blade can be fixed by the clamping cap. The cutting blade can be easily replaced by removing the clamping cap. The second drive motor drives the cutting blade to rotate, thereby cutting the PCCP pipe. The extension and retraction of the electric telescopic rod can move the cutting blade up and down to adjust the cutting depth. The sliding plate changes the resistance value by linear displacement inside the resistor slide rail, forming a voltage divider circuit. The output voltage signal is proportional to the displacement, thereby detecting the lifting distance of the cutting blade and accurately controlling the lifting of the cutting blade.

[0014] 2. Through the set moving component, the first drive motor rotates and then the reducer drives the power sprocket to rotate, thereby enabling the mechanism to move by cooperating with the sleeve chain.

[0015] 3. By using the tensioning component, the adjusting screw can be rotated by rotating the hexagonal head with a torque wrench or electric screwdriver, which in turn moves the gantry upward. Combined with the restraint of the pressure sprockets on both sides and the power sprocket, the connecting chain is tightened and tightly fitted to the outer wall of the PCCP. This also allows the mounting housing to generate a clamping force on the PCCP pipe, enabling the mechanism to move more stably on the outer wall of the PCCP pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a PCCP pipe cutting mechanism according to the present invention; Figure 2 This is a schematic diagram of the tensioning component structure in this utility model; Figure 3 This is a schematic diagram of the cutting component structure in this utility model; Figure 4 This is a schematic diagram of the adjustment component structure in this utility model.

[0017] The correspondence between the labels and component names in the attached figures is as follows: 100. Mounting housing; 101. Moving rollers; 102. Connecting chain; 103. Notch groove; 104. Resistance slide rail; 200. Drive sprocket; 201. Mounting bracket; 202. Pressure sprocket; 203. Gantry frame; 204. Tension sprocket; 205. First drive motor; 206. Reducer; 207. Sliding limit rod; 208. Adjusting screw; 209. Hexagonal head; 300. Cutting blade; 301. Clamping cap; 302. Second drive motor; 303. Mounting base plate; 304. Connecting vertical plate; 305. Sliding plate; 306. Electric telescopic rod. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0021] like Figure 1 The diagram shows a preferred embodiment of a PCCP pipe cutting mechanism of this utility model. The PCCP pipe cutting mechanism of this embodiment includes a mounting housing 100. Movable rollers 101 are detachably connected to the four corners of the bottom of the mounting housing 100. A connecting chain 102 is fitted onto the outer wall of the PCCP pipe. A power sprocket 200 is provided inside the mounting housing 100, meshing with the connecting chain 102. A cutting blade 300 that can move up and down is installed inside the mounting housing 100. The cutting blade 300 cuts the PCCP pipe. In this embodiment, the rotation of the power sprocket 200, combined with the friction between the connecting chain 102 and the outer wall of the PCCP pipe, causes the mounting housing 100 to move along the outer wall of the PCCP pipe via the movable rollers 101, and the cutting blade 300 can then cut the PCCP pipe.

[0022] like Figure 2As shown, this is a schematic diagram of the tensioning assembly structure in this embodiment. Mounting brackets 201 are detachably connected to both sides of the bottom inner side of the mounting housing 100. Pressure sprockets 202 are rotatably connected inside the mounting brackets 201 on both sides. An adjusting screw 208, inserted into the mounting housing 100, is threadedly connected to the upper end of the mounting housing 100. A gantry frame 203 is rotatably connected to the insertion end of the adjusting screw 208. A hexagonal head 209 is fixedly connected to the upper end of the adjusting screw 208. Sliding limit rods 207, extending out of the mounting housing 100, are fixedly connected to both sides of the upper end of the gantry frame 203. Tensioning sprockets 204 are rotatably connected to the bottom of the vertical sides of the gantry frame 203. A sleeve chain 102 passes through and engages with the pressure sprockets 202 on both sides, and then passes through and engages with the tensioning sprockets 204 on both sides. The sleeve chain 102 passes through the bottom of the drive sprocket 200. The bottom inner side of the mounting housing 100 is detachably connected to... A first drive motor 205 is connected, and a reducer 206 is detachably connected to the rotating end of the first drive motor 205. The output shaft of the reducer 206 is detachably connected to a power sprocket 200, which meshes with the sleeve chain 102. In this embodiment, by using a torque wrench or electric screwdriver to rotate the outside of the hexagonal head 209, the adjusting screw 208 is driven to rotate, thereby enabling the gantry 203 to move upward. With the restraint of the two side clamping sprockets 202 and the power sprocket 200, the sleeve chain 102 is pulled tight and closely fits the outer wall of the PCCP, and the mounting housing 100 generates a clamping force on the PCCP pipe, so that the mechanism can move more stably on the outer wall of the PCCP pipe. The rotation of the first drive motor 205, combined with the reduction of the reducer 206, drives the power sprocket 200 to rotate, thereby enabling the movement of the mechanism in conjunction with the sleeve chain 102.

[0023] It is worth noting that the gantry 203, tension sprocket 204, sliding limit rod 207, adjusting screw 208, and hexagonal head 209 mentioned above are the tensioning components in this embodiment. The tensioning components include, but are not limited to, the gantry 203, tension sprocket 204, sliding limit rod 207, adjusting screw 208, and hexagonal head 209. Any component that can tighten the sleeve chain 102 and provide pressure to the PCCP pipeline for the mounting housing 100 can be used in this embodiment.

[0024] It is also worth noting that the first drive motor 205, reducer 206 and drive sprocket 200 mentioned above are the moving components in this embodiment. The moving components include, but are not limited to, the first drive motor 205, reducer 206 and drive sprocket 200. Any component that can cooperate with the sleeve chain 102 to enable the mechanism to move outside the PCCP pipe can be applied to this embodiment.

[0025] like Figure 3As shown, this is a schematic diagram of the cutting assembly structure in this embodiment. A second drive motor 302 is installed inside the mounting housing 100. A cutting blade 300 is detachably connected to the rotating shaft of the second drive motor 302. A clamping cap 301 is detachably connected to the rotating shaft of the second drive motor 302. The clamping cap 301 fixes the cutting blade 300 to the rotating shaft. In this embodiment, the cutting blade 300 can be fixed by the clamping cap 301. The cutting blade 300 can be easily replaced by removing the clamping cap 301. The cutting blade 300 can be rotated by the rotation of the second drive motor 302, thereby cutting the PCCP pipe.

[0026] It is worth noting that the second drive motor 302, the cutting blade 300, and the clamping cap 301 mentioned above are the cutting components in this embodiment. The cutting components include, but are not limited to, the second drive motor 302, the cutting blade 300, and the clamping cap 301. Any component that can cut PCCP pipes can be used in this embodiment.

[0027] like Figure 2-4 As shown, this is a schematic diagram of the adjustment component structure in this embodiment. A notch 103 is provided near the edge of the inner bottom of the mounting housing 100. Resistance slide rails 104 are detachably connected to the upper ends of the inner bottom of the mounting housing 100 on both sides of the notch 103. A mounting base plate 303 is detachably connected to the bottom of the second drive motor 302. Connecting vertical plates 304 are fixedly connected to the outer walls of both sides of the mounting base plate 303. Sliding plates 305 are fixedly connected to the upper ends of the connecting vertical plates 304 on both sides. The two ends of the sliding plates 305 extend beyond the connecting vertical plates 304 and are flush with the interior of the resistance slide rails 104. A sliding connection is provided, and an electric telescopic rod 306 is detachably connected to the top inner side of the mounting housing 100. The telescopic end of the electric telescopic rod 306 is detachably connected to the upper end of the sliding plate 305. In this embodiment, the electric telescopic rod 306 can extend and shorten to move the cutting blade 300 up and down, thereby adjusting the cutting depth. The sliding plate 305 changes its resistance value by linear displacement inside the resistor slide rail 104, forming a voltage divider circuit and outputting a voltage signal proportional to the displacement. This allows the detection of the lifting distance of the cutting blade 300, thereby precisely controlling the lifting of the cutting blade 300.

[0028] It is worth noting that the notch 103, the resistance slide rail 104, the mounting base plate 303, the connecting vertical plate 304, the sliding plate 305, and the electric telescopic rod 306 mentioned above are the adjustment components in this embodiment. The adjustment components include, but are not limited to, the notch 103, the resistance slide rail 104, the mounting base plate 303, the connecting vertical plate 304, the sliding plate 305, and the electric telescopic rod 306. Any component that can accurately control the lifting and lowering of the cutting blade 300 can be applied to this embodiment.

[0029] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A PCCP pipe cutting mechanism, comprising a mounting housing (100), wherein movable rollers (101) are detachably connected to the four corners of the bottom of the mounting housing (100), characterized in that, An adjustment component is installed inside the mounting housing (100), and a cutting component is installed on the adjustment component. The cutting component cuts the PCCP pipe, and the adjustment component causes the cutting component to rise and fall. A connecting chain (102) is fitted onto the outer wall of the PCCP pipe. A moving component is installed inside the mounting housing (100), and the moving component, in conjunction with the connecting chain (102), causes the mechanism to move on the outer wall of the PCCP pipe. The adjustment assembly includes a notch (103), a resistance slide rail (104), a mounting base plate (303), a connecting vertical plate (304), a sliding plate (305), and an electric telescopic rod (306). A notch (103) is provided near the edge of the inner bottom of the mounting housing (100). Resistance slide rails (104) are detachably connected to the upper ends of the inner bottom of the mounting housing (100) on both sides of the notch (103). The bottom of the second drive motor (302) is detachably connected to the mounting base plate. 303), the two outer walls of the mounting base plate (303) are fixedly connected with connecting vertical plates (304), the upper ends of the two connecting vertical plates (304) are fixedly connected with sliding plates (305), the two ends of the sliding plates (305) extend beyond the connecting vertical plates (304) and are slidably connected to the inside of the resistance slide rail (104), the top of the inner side of the mounting housing (100) is detachably connected with an electric telescopic rod (306), the telescopic end of the electric telescopic rod (306) is detachably connected to the upper end of the sliding plate (305).

2. The PCCP pipe cutting mechanism according to claim 1, characterized in that, The mounting housing (100) has mounting brackets (201) detachably connected to both sides of the bottom inner side. The mounting brackets (201) on both sides are rotatably connected to a pressure sprocket (202). The mounting housing (100) has a tensioning assembly installed on the top inner side. The tensioning assembly pulls the connecting chain (102) tight and makes the mounting housing (100) have a pressure force on the PCCP pipe.

3. The PCCP pipe cutting mechanism according to claim 2, characterized in that, The moving component includes a first drive motor (205), a reducer (206), and a power sprocket (200). The first drive motor (205) is detachably connected to the bottom inner side of the mounting housing (100). The reducer (206) is detachably connected to the rotating end of the first drive motor (205). The output shaft of the reducer (206) is detachably connected to the power sprocket (200). The power sprocket (200) meshes with the sleeve chain (102).

4. The PCCP pipe cutting mechanism according to claim 3, characterized in that, The tensioning assembly includes a gantry (203), a tensioning sprocket (204), a sliding limit rod (207), an adjusting screw (208), and a hexagonal head (209). The upper end of the mounting housing (100) is threadedly connected to the adjusting screw (208), which is inserted into the mounting housing (100). The insertion end of the adjusting screw (208) is rotatably connected to the gantry (203), and the upper end of the adjusting screw (208) is fixedly connected to the hexagonal head (209). The upper end of the gantry (203) is fixedly connected to two sliding limit rods (207) that pass through the mounting housing (100). Tension sprockets (204) are embedded and rotatably connected to the bottom of the vertical sides of the gantry (203). The sleeve chain (102) passes through and engages with the lower side of the two side pressure sprockets (202), and then passes through and engages with the upper side of the two side tension sprockets (204). The sleeve chain (102) passes through the lower side of the power sprocket (200).

5. The PCCP pipe cutting mechanism according to claim 4, characterized in that, The cutting assembly includes a second drive motor (302), a cutting blade (300), and a clamping cap (301). The second drive motor (302) is installed inside the mounting housing (100). The cutting blade (300) is detachably connected to the rotating shaft of the second drive motor (302). The clamping cap (301) is detachably connected to the rotating shaft of the second drive motor (302). The clamping cap (301) fixes the cutting blade (300) to the rotating shaft.

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