Pipeline pre-burying ditching device

Abstract

The utility model discloses a pipeline pre-burying ditching device, and belongs to the technical field of pipeline pre-burying. Comprising a fixed cutterhead, a rotating shaft coaxially fixed to the two ends of the fixed cutterhead and a plurality of first cutter heads annularly distributed on the fixed cutterhead, adjusting cutterheads are arranged at the two axial ends of the fixed cutterhead in a sliding mode, a plurality of second cutter heads are annularly distributed on the adjusting cutterheads, and the adjusting cutterheads and the rotating shaft are detachable. The ditching width of the cutterheads can be adjusted by adjusting the two adjusting cutterheads in the opposite or separated direction, the adjusting cutterheads and the rotating shaft are fixed, so that the adjusting cutterheads can synchronously rotate along with the fixed cutterhead, the rotating radius of the first cutter head is the same as that of the second cutter head, and the ditching flatness is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of pre-buried pipelines, and more specifically, to a pre-buried pipeline trenching device. Background Art

[0002] At present, in the municipal water supply and drainage construction, it is usually necessary to use a trenching device to dig out the pre-buried pipeline trench. The existing municipal water supply and drainage pipeline pre-buried trenching device includes a mounting plate and a connecting seat fixedly connected to one side of the mounting plate and a trenching mechanism arranged below the mounting plate, and also includes a flattening component arranged below the mounting plate. When this pipeline pre-buried trenching device is in use, the auger is rotated by a driving motor, a pulley and a belt, and the trenching mechanism is driven by a motor inside the trenching mechanism, that is, the auger and the trenching wheel are driven by motors respectively, thereby increasing the cost for the motor, and the concentration of the installation of the components of the digging mechanism and the soil discharge mechanism is low, and the synchronization of digging and discharging of the trench is poor.

[0003] The document with prior art publication number CN 220686180 U provides a pre-buried trenching device for municipal water supply and drainage pipes. The device is arranged with the rotating shaft, trenching wheel, driven pulley, transmission belt, driving pulley, driving motor and auger. The driving motor can drive the trenching wheel and the auger to rotate simultaneously, thereby ensuring the synchronization of digging and discharging soil.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the device is in use, the trenching wheel can only open a pre-buried trench of a fixed width, and cannot adjust the trenching width according to pipes of different diameters, resulting in poor applicability.

[0005] In view of this, we propose a pipeline pre-buried trenching device. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide a pipeline pre-buried trenching device, which solves the technical problems in the above-mentioned background technology and achieves the technical effect that the trenching width of the cutter disc can be adjusted to be suitable for pipelines of different diameters.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a pipeline pre-buried trenching device, including a fixed cutter disc and a rotating shaft coaxially fixed at both ends of the fixed cutter disc and a plurality of first cutter heads annularly distributed on the fixed cutter disc, an adjusting cutter disc is slidably arranged at both axial ends of the fixed cutter disc, a plurality of second cutter heads are annularly distributed on the adjusting cutter disc, and the adjusting cutter disc and the rotating shaft are detachable.

[0010] By adopting the above technical solution, the ditching width of the cutter disc can be adjusted by adjusting the two adjusting cutter discs in the relative or apart directions, and the adjusting cutter disc is fixed to the rotating shaft so that the adjusting cutter disc can rotate synchronously with the fixed cutter disc. The rotation radius of the first cutter head and the second cutter head are the same to ensure the flatness of the ditching.

[0011] As an optional solution of the technical solution of the present application document, grooves adapted to the adjustable cutter disc are provided at both axial ends of the fixed cutter disc, and the fixed cutter disc is provided with a plurality of receiving openings corresponding to the second cutter head.

[0012] By adopting the above technical solution, when the two adjusting blade discs are adjusted relative to each other, they are inserted into the grooves, and at the same time, each second blade head is inserted into the corresponding storage opening and placed between adjacent first blade heads to facilitate the storage of the adjusting blade discs.

[0013] As an optional solution of the technical solution of the present application document, the adjusting cutter disc is coaxially fixedly installed with a sleeve sleeved on the rotating shaft, and the sleeve is threadedly connected with a locking screw that abuts against the rotating shaft.

[0014] By adopting the above technical solution, the rotating shaft passes through the sleeve and the adjusting cutter disc, and the adjusting cutter disc and the rotating shaft can be disassembled and assembled by adjusting the locking screw.

[0015] As an optional solution of the technical solution of the present application document, a rectangular rod is fixedly installed between the rotating shaft and the fixed cutter disc, and the sleeve is adapted to the rectangular rod.

[0016] By adopting the above technical solution, through the cooperation of the rectangular rod and the sleeve, the large torque force on the locking screw generated when adjusting the rotation of the cutter disc can be reduced, thereby ensuring that the locking screw will not produce large deformation and ensuring normal adjustment of the locking screw.

[0017] As an optional solution to the technical solution of the present application document, the rectangular rod is provided with a plurality of positioning holes which are evenly spaced and matched with the locking screws.

[0018] By adopting the above technical solution, the locking screw is screwed into the corresponding positioning hole, so that the axial movement of the adjustment cutter disc can be avoided after the fixing is completed.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0021] 1. The present application can adjust the ditching width of the cutter disc by adjusting the two adjusting cutter discs in the relative or apart directions, and can adjust the fixation of the cutter disc and the rotating shaft so that the adjustable cutter disc can rotate synchronously with the fixed cutter disc, and the rotation radius of the first cutter head and the second cutter head are the same to ensure the flatness of the ditching. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a pipeline pre-buried trenching device in a storage state of an adjustable cutter disc disclosed in a preferred embodiment of the present application;

[0023] Figure 2 A schematic diagram of a fixed cutter disc structure of a pipeline pre-buried trenching device disclosed in a preferred embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of an adjustable cutter disc of a pipeline pre-buried trenching device disclosed in a preferred embodiment of the present application;

[0025] Figure 4 This is a schematic structural diagram of a pipeline pre-buried trenching device disclosed in a preferred embodiment of the present application after the adjusting cutter disc is adjusted outwards;

[0026] Explanation of the numbers in the figure: 1. Fixed cutter disc; 101. Rotating shaft; 1011. Rectangular rod; 1012. Positioning hole; 102. First cutter head; 103. Groove; 104. Storage port; 2. Adjustable cutter disc; 201. Second cutter head; 202. Sleeve; 203. Locking screw. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] A pipeline pre-buried trenching device comprises a fixed cutter disc 1 and a rotating shaft 101 coaxially fixed at both ends of the fixed cutter disc 1 and a plurality of first cutter heads 102 annularly distributed on the fixed cutter disc 1. An adjusting cutter disc 2 is slidably provided at both axial ends of the fixed cutter disc 1. A plurality of second cutter heads 201 are annularly distributed on the adjusting cutter disc 2. The adjusting cutter disc 2 and the rotating shaft 101 are detachable.

[0029] Reference Figure 1-Figure 4 By adjusting the two adjusting cutter discs 2 in the relative or apart directions, the ditching width of the cutter discs can be adjusted, and by fixing the adjusting cutter disc 2 to the rotating shaft 101, the adjusting cutter disc 2 can rotate synchronously with the fixed cutter disc 1, and the rotation radius of the first cutter head 102 and the second cutter head 201 are the same to ensure the flatness of the ditching.

[0030] Both axial ends of the fixed cutter disc 1 are provided with grooves 103 adapted to the adjustable cutter disc 2 , and the fixed cutter disc 1 is provided with a plurality of receiving openings 104 corresponding to the second cutter heads 201 .

[0031] Reference Figure 2 When the two adjustment blade discs 2 are adjusted relative to each other, they are inserted into the groove 103 , and at the same time, each second blade head 201 is inserted into the corresponding receiving port 104 and placed between adjacent first blade heads 102 to facilitate the storage of the adjustment blade discs 2 .

[0032] The adjusting cutter disc 2 is coaxially fixedly mounted with a sleeve 202 sleeved on the rotating shaft 101 , and the sleeve 202 is threadedly connected with a locking screw 203 that abuts against the rotating shaft 101 .

[0033] Reference Figure 1 and Figure 3 The rotating shaft 101 passes through the sleeve 202 and the adjusting cutter disc 2, and is adjusted by the locking screw 203 so as to disassemble and assemble the adjusting cutter disc 2 and the rotating shaft 101.

[0034] A rectangular rod 1011 is fixedly installed between the rotating shaft 101 and the fixed cutter disc 1 , and the sleeve 202 is adapted to the rectangular rod 1011 .

[0035] Reference Figure 1-Figure 3 By cooperating with the rectangular rod 1011 and the sleeve 202, the large torque force on the locking screw 203 when the cutter disc 2 is adjusted to rotate can be reduced, thereby ensuring that the locking screw 203 will not produce a large deformation and ensuring the normal adjustment of the locking screw 203.

[0036] The rectangular rod 1011 is provided with a plurality of positioning holes 1012 which are evenly spaced and matched with the locking screw 203 .

[0037] Reference Figure 1-Figure 3 , screwing the locking screw 203 into the corresponding positioning hole 1012 can prevent the axial movement of the adjustment cutter disc 2 after the fixing is completed.

[0038] Working principle: The rotating shaft 101 is installed on the fixed plate and connected to the driving motor through a pulley and a transmission belt. The driving motor drives the rotating shaft 101, the fixed cutter disc 1 and the adjustable cutter disc 2 to rotate, and the first cutter head 102 and the second cutter head 201 can be used to perform grooving operations. At the same time, by adjusting the distance between the two adjustable cutter discs 2 and screwing the locking screw 203 into the corresponding positioning hole 1012, the width of the groove can be adjusted.

Claims

1. A pipeline pre-buried trenching device, comprising a fixed cutter disc (1), a rotating shaft (101) coaxially fixed at both ends of the fixed cutter disc (1), and a plurality of first cutter heads (102) annularly distributed on the fixed cutter disc (1), characterized in that: Adjustable cutter discs (2) are slidably arranged at both axial ends of the fixed cutter disc (1), a plurality of second cutter heads (201) are annularly distributed on the adjustable cutter disc (2), and the adjustable cutter disc (2) and the rotating shaft (101) are detachable.

2. A pipeline pre-buried trenching device according to claim 1, characterized in that: The fixed cutter disc (1) is provided with grooves (103) adapted to the adjustable cutter disc (2) at both axial ends, and the fixed cutter disc (1) is provided with a plurality of receiving openings (104) corresponding to the second cutter heads (201).

3. A pipeline pre-buried trenching device according to claim 1, characterized in that: The adjustable cutter disc (2) is coaxially fixedly mounted with a sleeve (202) sleeved on the rotating shaft (101), and a locking screw (203) abutting against the rotating shaft (101) is threadedly connected to the sleeve (202).

4. A pipeline pre-buried trenching device according to claim 3, characterized in that: A rectangular rod (1011) is fixedly installed between the rotating shaft (101) and the fixed cutter disc (1), and the sleeve (202) is adapted to the rectangular rod (1011).

5. A pipeline pre-buried trenching device according to claim 4, characterized in that: The rectangular rod (1011) is provided with a plurality of positioning holes (1012) which are distributed at equal intervals and are adapted to the locking screw (203).

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