Slotting device for hydropower construction

Abstract

The utility model relates to the technical field of decoration construction cutting equipment, in particular to a grooving device for hydropower construction, which comprises a machine body and a blade assembly, one end of the machine body is provided with a blade groove, and the blade assembly comprises a plurality of cutting pieces, a first shaft body assembly and a second shaft body assembly. The first shaft body assembly and the second shaft body assembly are both rotationally installed on the machine body, one end of the first shaft body assembly and one end of the second shaft body assembly are connected in a clamped mode or separated from each other, the first shaft body assembly and the second shaft body assembly are each provided with a plurality of cutting pieces, and when one end of the first shaft body assembly and one end of the second shaft body assembly are connected in a clamped mode, cutting is conducted. Due to the fact that the inlet and the outlet of the cutting piece are formed in the middle section of the blade groove, the cutting piece can be locally disassembled and assembled, and the cutting piece disassembling and assembling efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of cutting equipment for renovation construction, and more specifically to a grooving device for water and electricity construction. Background Art

[0002] The water and electricity grooving machine is a construction tool that can open cable grooves of different angles, widths, and depths at one time according to construction requirements. It is widely used in decoration construction.

[0003] Our company currently has a hydropower slotting machine, such as Figure 1 As shown, it includes a body 90 and a blade assembly 91, one end of the body 90 has a blade slot 901, the blade assembly 91 includes a shaft 911, a plurality of cutting blades 912, a plurality of gaskets 913, a middle piece 914, an insert 915 and a connecting piece 916, one end of the shaft 911 is rotatably mounted on one side of the body 90, and one end extends into the blade slot 901, the middle piece 914 is rotatably mounted on the other side of the body 90, and the insert 915 is It is slidably arranged on the middle piece 914, and there is a pick-up and placement gap 917 between the middle piece 914 and the insert piece 915. When the insert piece 915 slides a certain distance, the insert piece 915 engages with the middle piece 914 and blocks the pick-up and placement gap 917. The connecting piece 916 is detachably connected to the insert piece 915 and the middle piece 914 at the same time. A plurality of cutting blades 912 are placed on the rotating shaft 911, and two adjacent cutting blades 912 are each provided with a gasket 913. It should be noted that when taking out or installing the cutting blade 912, the connecting piece 916 is first separated from the middle piece 914 and the insert piece 915 by loosening the screws, and then the insert piece 915 is pulled out so that the pick-up and placement gap 917 is not blocked, and then the cutting blades 912 are taken out one by one. However, if the cutting disc 912 located on the side away from the pick-up and placement gap 917 is severely worn, in order to remove the cutting disc 912, the intact cutting discs 912 still need to be removed one by one, and in order to ensure that the overall size of the hydropower grooving machine is small, the pick-up and placement gap 917 is only slightly larger than the thickness of the cutting disc 912, which further reduces the efficiency of disassembling and assembling the cutting disc 912.

[0004] Therefore, there is a need to provide a grooving device for hydropower construction that can partially disassemble and assemble cutting parts and help improve the efficiency of disassembling and assembling cutting parts. Summary of the invention

[0005] The main purpose of the present application is to provide a grooving device for hydropower construction, wherein the grooving device for hydropower construction comprises a body and a blade assembly, one end of the body is provided with a blade groove, the blade assembly comprises a plurality of cutting pieces, a first shaft assembly and a second shaft assembly, the first shaft assembly and the second shaft assembly are both rotatably mounted on the body, and one end of the first shaft assembly and the second shaft assembly are mutually engaged or separated, a plurality of the cutting pieces are mounted on the first shaft assembly and the second shaft assembly, when the first shaft assembly and one end of the second shaft assembly are mutually engaged, the engaging point of the first shaft assembly and the second shaft assembly is located in the middle section of the blade groove, by arranging the entrance and exit of the cutting piece in the middle section of the blade groove, when the cutting piece located on the inner side of one end is worn, compared with the prior art which requires removing a plurality of cutting pieces as a whole, the embodiment of the present application has the advantages that the cutting piece can be partially disassembled and assembled, which helps to improve the efficiency of disassembly and assembly of the cutting piece.

[0006] Another object of the present application is to provide a grooving device for hydropower construction, wherein the first shaft assembly and the second shaft assembly each include a first rotating shaft, a second rotating shaft and a third rotating shaft, the first rotating shaft is rotatably mounted on the machine body, the second rotating shaft is slidably arranged at the center of the first rotating shaft, and the third rotating shaft is slidably arranged at the center of the second rotating shaft, and the distances of the third rotating shaft, the second rotating shaft and the first rotating shaft extending into the blade groove become smaller in sequence, and each of the first rotating shaft, the second rotating shaft and the third rotating shaft is equipped with a cutting piece, and the second rotating shaft and the third rotating shaft are arranged to be withdrawable to facilitate the removal of the cutting pieces installed on the first rotating shaft, the second rotating shaft and the third rotating shaft, and the size of the entrance and exit becomes larger after the second rotating shaft is withdrawn.

[0007] In order to achieve at least one of the above-mentioned invention purposes, the present application provides a grooving device for hydropower construction, wherein the grooving device for hydropower construction comprises:

[0008] a body, one end of which has a blade slot; and

[0009] A blade assembly, the blade assembly includes a plurality of cutting pieces, a first shaft assembly and a second shaft assembly, the first shaft assembly and the second shaft assembly are both rotatably mounted on the machine body, and one end of the first shaft assembly and the second shaft assembly are mutually engaged or separated, a plurality of the cutting pieces are mounted on the first shaft assembly and the second shaft assembly, and when one end of the first shaft assembly and the second shaft assembly are mutually engaged, the engaging portion of the first shaft assembly and the second shaft assembly is located in the middle section of the blade slot.

[0010] In one or more embodiments of the present application, the first shaft assembly and the second shaft assembly each include a first rotating shaft, a second rotating shaft, and a third rotating shaft. The first rotating shaft is rotatably installed on the machine body. The second rotating shaft is slidably disposed at the center of the first rotating shaft, and the third rotating shaft is slidably disposed at the center of the second rotating shaft. The distances that the third rotating shaft, the second rotating shaft, and the first rotating shaft extend into the blade groove gradually decrease. A cutting member is installed on each of the first rotating shaft, the second rotating shaft, and the third rotating shaft.

[0011] In one or more embodiments of the present application, each end of the first rotating shaft facing away from the blade groove has a plurality of clamping members. One end of the clamping member is rotatably installed on the first rotating shaft, and the other end of the clamping member fits or separates from the end of the third rotating shaft.

[0012] In one or more embodiments of the present application, the first shaft assembly and the second shaft assembly each include a plurality of fastening members. Both ends of the second rotating shaft and the third rotating shaft have a abutting portion. When the clamping member fits with the abutting portion of the third rotating shaft, the abutting portion on the second rotating shaft abuts against the end of the first rotating shaft where the clamping member is provided, and the abutting portion on the third rotating shaft abuts against the abutting portion on the second rotating shaft. Each clamping member has a first threaded hole, and both ends of the second rotating shaft and the third rotating shaft have second threaded holes corresponding to the first threaded hole one by one. The fastening members are sequentially threadedly connected to the first threaded hole and the second threaded hole.

[0013] In one or more embodiments of the present application, one end of the third rotating shaft in the first shaft assembly facing away from the abutting portion has a polygonal protrusion, and one end of the third rotating shaft in the second shaft assembly facing away from the abutting portion has a groove. When one ends of the two third rotating shafts abut against each other, the polygonal protrusion is snapped into the groove.

[0014] In one or more embodiments of the present application, both side walls of the second rotating shaft and the third rotating shaft have a plurality of ridges, and both inner hole walls of the first rotating shaft and the second rotating shaft have a through notch groove. When the second rotating shaft passes through the first rotating shaft and the third rotating shaft passes through the second rotating shaft, the corresponding ridges pass through the corresponding notch grooves.

[0015] In one or more embodiments of the present application, the grooving device for hydropower construction further includes a rotary drive device, a transmission shaft, a first gear, and a second gear. The rotary drive device is fixedly installed on the machine body. The transmission shaft is rotatably installed on the machine body and is in power connection with the rotary drive device. The first gear is fixedly connected to the end of the first rotating shaft away from the blade groove. The second gear is fixedly connected to the end of the transmission shaft and meshes with the first gear.

[0016] In one or more embodiments of the present application, the blade assembly further includes a plurality of gaskets, and each end of each cutting member has one such gasket.

[0017] In an embodiment of the present application, the grooving device for hydropower construction includes a machine body and a blade assembly. One end of the machine body has a blade groove. The blade assembly includes a plurality of cutting members, a first shaft assembly, and a second shaft assembly. The first shaft assembly and the second shaft assembly are both rotatably installed on the machine body, and one end of the first shaft assembly and the second shaft assembly are mutually clamped or separated. A plurality of cutting members are installed on both the first shaft assembly and the second shaft assembly. When one end of the first shaft assembly and the second shaft assembly are mutually clamped, the clamping position of the first shaft assembly and the second shaft assembly is located in the middle section of the blade groove. By arranging the inlet and outlet of the cutting member in the middle section of the blade groove, when the cutting member located inside one end is worn, compared with the prior art where it is necessary to remove a relatively large number of cutting members as a whole, the embodiment of the present application has the advantages of being able to disassemble and assemble the cutting members locally and helping to improve the disassembly and assembly efficiency of the cutting members. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] From the following detailed description of the embodiments of the present application in conjunction with the drawings, these and / or other aspects and advantages of the present application will become clearer and easier to understand, where:

[0019] Figure 1 FIG. shows the structural schematic diagram of a cutting blade of an existing hydropower grooving machine;

[0020] Figure 2 FIG. shows the overall structural schematic diagram of a grooving device for hydropower construction according to the present utility model;

[0021] Figure 3 FIG. shows the structural schematic diagram of a grooving device for hydropower construction according to the present utility model at the blade groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The terms and words used in the following specification and claims are not limited to their literal meanings, but are used solely by the present inventor to enable a clear and consistent understanding of the present application. Accordingly, the following description of the various embodiments of the present application is provided to those skilled in the art clearly for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0023] It will be understood that the term "a" should be construed to mean "at least one" or "one or more". That is, in one embodiment, the number of an element may be one, while in other embodiments, the number of the element may be multiple. The term "a" should not be construed as limiting the number.

[0024] Although ordinal numbers such as "first", "second", etc. will be used to describe various components, those components are not limited herein. The term is only used to distinguish one component from another. For example, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component, without departing from the teachings of the utility model concept. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0025] The terms used herein are for the purpose of describing various embodiments only and are not intended to be limiting. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Additionally, it will be understood that the terms "comprises" and / or "having", when used in this specification, specify the presence of the stated features, numbers, steps, operations, components, elements, or combinations thereof, without precluding the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

[0026] A grooving device for schematic hydropower construction

[0027] Refer to Figures 2 to 3 , according to a grooving device for hydropower construction in a preferred embodiment of the present utility model, comprising a body 10 and a blade assembly 20.

[0028] Specifically, as Figure 3As shown, one end of the body 10 has a blade groove 101; in addition, the blade assembly 20 includes a plurality of cutting members 201, a first shaft assembly 202, and a second shaft assembly 203. The first shaft assembly 202 and the second shaft assembly 203 are both rotatably mounted on the body 10 through bearings, and one end of the first shaft assembly 202 is clamped or separated from one end of the second shaft assembly 203. A plurality of the cutting members 201 are mounted on both the first shaft assembly 202 and the second shaft assembly 203. When one end of the first shaft assembly 202 is clamped to one end of the second shaft assembly 203, the clamping portion of the first shaft assembly 202 and the second shaft assembly 203 is located in the middle section of the blade groove 101.

[0029] It should be noted that during normal use, one end of the first shaft assembly 202 is clamped to one end of the second shaft assembly 203, so that when the first shaft assembly 202 rotates, the second shaft assembly 203 rotates accordingly; when the cutting member 201 needs to be disassembled and replaced, the first shaft assembly 202 is separated from the second shaft assembly 203, and the corresponding cutting member 201 is taken out. In the embodiment of the present application, the number of the cutting members 201 is six, three of the cutting members 201 are provided on the first shaft assembly 202, and three of the cutting members 201 are provided on the second shaft assembly 203. The cutting members 201 are all saw blades. Obviously, compared with the prior art in which the gap for disassembling and assembling the cutting member 201 is placed on one side of the blade groove 101, in the embodiment of the present application, by placing the gap for disassembling and assembling the cutting member 201 in the middle section of the blade groove 101, the overall cutting members 201 are divided into two parts. If the cutting members 201 on the first shaft assembly 202 are worn and need to be replaced, only the first shaft assembly 202 needs to be separated from the second shaft assembly 203, and the cutting members 201 on the first shaft assembly 202 are taken out. Similarly, if the cutting members 201 on the second shaft assembly 203 are worn and need to be replaced, only the second shaft assembly 203 needs to be separated from the first shaft assembly 202, and the cutting members 201 on the second shaft assembly 203 are taken out. It has the advantages of being able to locally disassemble and assemble the cutting members 201 and helping to improve the disassembly and assembly efficiency of the cutting members 201.

[0030] Further, to achieve the clamping or separation of the first shaft assembly 202 and the second shaft assembly 203, as Figure 3As shown, the first shaft assembly 202 and the second shaft assembly 203 each include a first rotating shaft 2031, a second rotating shaft 2032 and a third rotating shaft 2033, the first rotating shaft 2031 is rotatably mounted on the body 10 via a bearing, the second rotating shaft 2032 is slidably disposed at the center of the first rotating shaft 2031, and the third rotating shaft 2033 is slidably disposed at the center of the second rotating shaft 2032, and the distances of the third rotating shaft 2033, the second rotating shaft 2032 and the first rotating shaft 2031 extending into the blade slot 101 become smaller successively, and each of the first rotating shaft 2031, the second rotating shaft 2032 and the third rotating shaft 2033 is mounted with a cutting member 201.

[0031] It should be noted that, assuming that only the cutting piece 201 on the third rotating shaft 2033 in the first shaft assembly 202 needs to be removed at this time, the processing personnel only needs to pull out the third rotating shaft 2033. Then, as the third rotating shaft 2033 sinks into the second rotating shaft 2032, the cutting piece 201 originally placed on the third rotating shaft 2033 is blocked by the end of the second rotating shaft 2032 and will automatically fall off; in addition, assuming that the cutting piece 201 on the second rotating shaft 2032 in the first shaft assembly 202 needs to be removed at this time, the processing personnel can hold the second rotating shaft 2032 and the cutting piece 201 on the third rotating shaft 2033 at the same time, and then pull out the second rotating shaft 2032. When the second rotating shaft 2032 is pulled out, it will drive the The third rotating shaft 2033 is pulled out together, and as the third rotating shaft 2033 is immersed in the first rotating shaft 2031, the processing personnel can take out the two cutting pieces 201. It is obvious that when the second rotating shaft 2032 and the third rotating shaft 2033 are both pulled out, the gap when taking out the cutting piece 201 is larger than when only the third rotating shaft 2033 is pulled out, which is more convenient for taking out the cutting piece 201, and this gap can take out multiple cutting pieces 201 at the same time without additionally increasing the overall width of the grooving device for hydropower construction. Compared with the prior art in which the removal gap is only slightly larger than the width of one cutting piece 201 and the overall size of the grooving machine is additionally increased, the embodiment of the present application has the advantages of being more compact in structure and helping to improve the efficiency of disassembly and assembly of the cutting piece 201.

[0032] Furthermore, in order to achieve the axial position fixation of the second rotating shaft 2032 and the third rotating shaft 2033, as Figure 3 As shown, each first rotating shaft 2031 has a plurality of buckling members 204 at one end away from the blade slot 101 , one end of the buckling member 204 is rotatably mounted on the first rotating shaft 2031 , and the other end of the buckling member 204 is attached to or separated from the end of the third rotating shaft 2033 .

[0033] It should be noted that when the clamping member 204 is attached to and connected with the third rotating shaft 2033, the axial positions of the second rotating shaft 2032 and the third rotating shaft 2033 are fixed. When the clamping member 204 is separated from the third rotating shaft 2033, the second rotating shaft 2032 can axially move relative to the first rotating shaft 2031, and the third rotating shaft 2033 can axially move relative to the second rotating shaft 2032.

[0034] More specifically, to achieve the selective fixation of the clamping member 204 and the third rotating shaft 2033, as Figure 3 shown, both the first shaft assembly 202 and the second shaft assembly 203 include a plurality of fasteners 205. The fasteners 205 are preferably screws or bolts. Both ends of the second rotating shaft 2032 and the third rotating shaft 2033 have a abutting portion 20321. When the clamping member 204 abuts against the abutting portion 20321 of the third rotating shaft 2033, the abutting portion 20321 on the second rotating shaft 2032 abuts against one end of the first rotating shaft 2031 where the clamping member 204 is provided, and the abutting portion 20321 on the third rotating shaft 2033 abuts against the abutting portion 20321 on the second rotating shaft 2032. Each clamping member 204 has a first threaded hole (not marked in the figure), and both ends of the second rotating shaft 2032 and the third rotating shaft 2033 have second threaded holes (not marked in the figure) corresponding to the first threaded hole one by one. The fasteners 205 are sequentially threadedly connected to the first threaded hole and the second threaded hole.

[0035] It should be noted that since the first rotating shaft 2031 is in interference fit with the sleeved bearing and is rotatably installed on the machine body 10, the axial position of the first rotating shaft 2031 is fixed. When the fasteners 205 are sequentially threadedly connected to the first threaded hole on the clamping member 204 and the second threaded holes on the third rotating shaft 2033 and the second rotating shaft 2032, the first rotating shaft 2031 is fixedly connected to the third rotating shaft 2033 and the second rotating shaft 2032 through the clamping member 204, and its axial position is restricted; when replacing the cutting member 201, the fasteners 205 can be loosened, the clamping member 204 can be turned up, and then the second rotating shaft 2032 or the third rotating shaft 2033 can be pulled out.

[0036] Furthermore, to achieve the mutual clamping of one ends of the two third rotating shafts 2033, as Figure 3As shown, one end of the third rotating shaft 2033 in the first shaft assembly 202, which is away from the abutting portion 20321, has a polygonal protrusion 20331, and one end of the third rotating shaft 2033 in the second shaft assembly 203, which is away from the abutting portion 20321, has a groove 20332. When one ends of the two third rotating shafts 2033 abut against each other, the polygonal protrusion 20331 is snapped into the groove 20332.

[0037] It should be noted that when the fastener 205 is threadedly connected to the first threaded hole and the second threaded hole in sequence, and one end of the clamping member 204 is attached to the end of the third rotating shaft 2033, the position where the third rotating shaft 2033 extends into the blade slot 101 can exactly engage with the other third rotating shaft 2033.

[0038] Furthermore, to enable the second rotating shaft 2032 and the third rotating shaft 2033 to rotate circumferentially when the first rotating shaft 2031 rotates circumferentially, as Figure 3 shown, the side walls of the second rotating shaft 2032 and the third rotating shaft 2033 both have a plurality of ridges 20322, and the inner hole walls of the first rotating shaft 2031 and the second rotating shaft 2032 both have a through notch groove 20311. When the second rotating shaft 2032 passes through the first rotating shaft 2031 and the third rotating shaft 2033 passes through the second rotating shaft 2032, the corresponding ridges 20322 all pass through the corresponding notch grooves 20311.

[0039] Furthermore, to enable the rotation of the first rotating shaft 2031, as Figure 3 shown, the grooving device for hydropower construction further includes a rotary driving device (not shown in the figure), a transmission shaft 30, a first gear 401, and a second gear 402. The rotary driving device is preferably a rotary motor. The rotary driving device is fixedly installed on the machine body 10 by means of bolt connection. The transmission shaft 30 is rotatably installed on the machine body 10, and the transmission shaft 30 is power-connected to the rotary driving device through gears. The first gear 401 is fixedly connected to one end of the first rotating shaft 2031, which is away from the blade slot 101, and the fixed connection method includes but is not limited to welding. The second gear 402 is fixedly connected to the end of the transmission shaft 30 and meshes with the first gear 401.

[0040] It should be noted that when the rotating shaft of the rotation driving device rotates circumferentially, through the transmission shaft 30, the second gear 402, and the first gear 401, the first rotating shaft 2031 rotates circumferentially, and drives the second rotating shaft 2032 and the third rotating shaft 2033 to rotate circumferentially, thereby driving the cutting member 201 on the first rotating shaft 2031, the second rotating shaft 2032, and the third rotating shaft 2033 to rotate circumferentially.

[0041] Further, to ensure that each cutting member 201 is tightly pressed during use, as Figure 3 shown, the blade assembly 20 further includes a plurality of gaskets 206, and each end of each cutting member 201 is provided with a gasket 206.

[0042] In summary, the grooving device for hydropower construction based on the embodiments of the present application is clarified, which provides advantages such as locally detachable and installable cutting members and helps improve the disassembly and assembly efficiency of the cutting members for the grooving device for hydropower construction.

[0043] It is worth mentioning that in the embodiments of the present application, the grooving device for hydropower construction has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economy. At the same time, for manufacturers, the grooving device for hydropower construction provided by the present application is easy to produce, has a low cost, is more conducive to controlling production costs, and further conducive to the promotion and use of products.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments, and without departing from this principle, the embodiments of the present invention can have any deformation or modification.

Claims

1. A grooving device for hydropower construction, characterized in that: The grooving device for hydropower construction comprises a body, one end of which has a blade slot; and A blade assembly, the blade assembly includes a plurality of cutting pieces, a first shaft assembly and a second shaft assembly, the first shaft assembly and the second shaft assembly are both rotatably mounted on the machine body, and one end of the first shaft assembly and the second shaft assembly are mutually engaged or separated, a plurality of the cutting pieces are mounted on the first shaft assembly and the second shaft assembly, and when one end of the first shaft assembly and the second shaft assembly are mutually engaged, the engaging portion of the first shaft assembly and the second shaft assembly is located in the middle section of the blade slot.

2. The grooving device for hydropower construction according to claim 1, characterized in that: The first shaft assembly and the second shaft assembly each include a first rotating shaft, a second rotating shaft and a third rotating shaft, the first rotating shaft is rotatably mounted on the machine body, the second rotating shaft is slidably disposed at the center of the first rotating shaft, and the third rotating shaft is slidably disposed at the center of the second rotating shaft, and the distances of the third rotating shaft, the second rotating shaft and the first rotating shaft extending into the blade slot become smaller in sequence, and each of the first rotating shaft, the second rotating shaft and the third rotating shaft is mounted with a cutting member.

3. The grooving device for hydropower construction according to claim 2, characterized in that: Each of the first rotating shafts has a plurality of buckling pieces at one end away from the blade slot, one end of the buckling piece is rotatably mounted on the first rotating shaft, and the other end of the buckling piece is attached to or separated from the end of the third rotating shaft.

4. The grooving device for hydropower construction according to claim 3, characterized in that: The first shaft assembly and the second shaft assembly each include a plurality of fasteners, and the ends of the second rotating shaft and the third rotating shaft each have abutment portion. When the pressing piece is in contact with the abutment portion of the third rotating shaft, the abutment portion on the second rotating shaft abuts against an end portion of the first rotating shaft provided with the pressing piece, and the abutment portion on the third rotating shaft abuts against the abutment portion on the second rotating shaft. Each of the pressing pieces has a first threaded hole, and the ends of the second rotating shaft and the third rotating shaft each have a second threaded hole corresponding to the first threaded hole one by one, and the fasteners are threadedly connected to the first threaded hole and the second threaded hole in sequence.

5. The grooving device for hydropower construction according to claim 4, characterized in that: The third rotating shaft in the first shaft assembly has a polygonal protrusion at one end away from the abutting portion, and the third rotating shaft in the second shaft assembly has a groove at one end away from the abutting portion. When one end of the two third rotating shafts abut against each other, the polygonal protrusion is inserted into the groove.

6. The grooving device for hydropower construction according to claim 5, characterized in that: The side walls of the second rotating shaft and the third rotating shaft each have a plurality of convex strips, and the inner hole walls of the first rotating shaft and the second rotating shaft each have a through notch groove. When the second rotating shaft passes through the first rotating shaft and the third rotating shaft passes through the second rotating shaft, the corresponding convex strips each pass through the corresponding notch groove.

7. The grooving device for hydropower construction according to claim 6, characterized in that: The grooving device for hydropower construction also includes a rotary drive device, a transmission shaft, a first gear and a second gear. The rotary drive device is fixedly mounted on the machine body, the transmission shaft is rotatably mounted on the machine body, and the transmission shaft is power-connected to the rotary drive device. The first gear is fixedly connected to an end of the first rotating shaft away from the blade slot, and the second gear is fixedly connected to an end of the transmission shaft and meshes with the first gear.

8. The grooving device for hydropower construction according to claim 7, characterized in that: The blade assembly also includes a plurality of gaskets, and each of the two ends of the cutting piece has a gasket.

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