Road construction pipe cutting device

Abstract

The utility model relates to the technical field of highway construction, and discloses a highway construction pipe cutting device which comprises a mounting frame and a stepping motor bolted to one side of the mounting frame, and further comprises a support bolted to the top of the mounting frame, an electromagnetic clutch is mounted in the support, a coupler is mounted on one side of the electromagnetic clutch, and a cutting device is mounted on the other side of the electromagnetic clutch. A bearing support is mounted on one side of the coupler; according to the utility model, the electromagnetic clutch is matched with the coupling, so that the electromagnetic clutch can slip when the stepping motor is subjected to larger resistance, thereby reducing the situation of overlarge load of the stepping motor and effectively prolonging the service life of the stepping motor; and meanwhile, under the cooperation of a positioning mechanism, a linkage assembly and a connecting rod, the blade frame is conveniently limited, limiting of the blade frame is not affected when the pipe exists in the blade frame or not, and the problems that when an existing device is used, the service life of a motor is short, and cutting is not convenient enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway construction, in particular to a highway construction pipe cutting device. Background Art

[0002] Highways are roads that connect cities, villages, and industrial and mining bases and are built according to national technical standards and approved by the highway authorities. Highways do not include naturally formed paths in fields or rural areas. They are mainly for cars and have certain technical standards and facilities. There are general highways and special highways for cars. The latter are increasingly appearing in highway grades, so secondary highways have two specifications. Most existing highways require cutting devices to cut pipes during construction to facilitate the installation of highway guardrails, etc.

[0003] When the existing pipe cutting devices are in use, most of them are driven by the motor to directly drive the blade or the pipe to rotate, so as to cut the pipe. However, there is a lack of a protective structure for the motor during use. When the motor drives the blade or the pipe to rotate, there will be excessive resistance, jamming, and excessive load torque. This will cause the motor to be overloaded, and in severe cases, the internal coil of the motor will burn out, which seriously reduces the service life of the motor.

[0004] At the same time, when the existing cutting devices are in use, most of them rotate the threaded rod inside the tool holder to limit the tool holder. However, this method will cause the internal space to be reduced after the pipe is placed in the tool holder, which is not convenient for the staff to fix the tool holder. It is not only inconvenient, but also affects the cutting efficiency of the pipe. Utility Model Content

[0005] The purpose of the utility model is to provide a road construction pipe cutting device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a highway construction pipe cutting device, comprising a mounting frame and a stepping motor bolted to one side thereof, and also comprising:

[0007] A bracket bolted to the top of the mounting frame, an electromagnetic clutch is installed inside the bracket, a coupling is installed on one side of the electromagnetic clutch, a bearing support is installed on one side of the coupling, a three-claw chuck is installed on one side of the coupling, a blade holder is arranged on the surface of the mounting frame, and a connecting shell is installed at the bottom of the blade holder;

[0008] A sliding frame is fixed on both sides of the connecting shell, a positioning mechanism is installed in the inner cavity of the connecting shell, a linkage component is installed at the bottom of the connecting shell, a connecting rod is arranged on the surface of the linkage component, a pointer is fixedly connected to the surface of the sliding frame, and scale lines are arranged on both sides of the surface of the mounting frame.

[0009] Preferably, the positioning mechanism includes a bidirectional threaded rod installed in the inner cavity of the connecting shell and a sleeve frame threadedly connected to both sides of its surface, and also includes a positioning frame fixed to one side of the sleeve frame and teeth fixed to both sides of the inner cavity of the mounting frame.

[0010] Preferably, the sleeve frame is designed as a U-shaped structure, and the sleeve frame is slidably connected to the connecting shell.

[0011] Preferably, the teeth are engaged with the positioning frame, and the number of the teeth is several.

[0012] Preferably, the center points of the stepper motor, electromagnetic clutch, coupling and three-jaw chuck are all on the same horizontal line when they rotate.

[0013] Preferably, the sliding frame is designed as an L-shaped structure, and the inner wall of the sliding frame is slidably connected to the surface of the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model can make the electromagnetic clutch slip when the stepping motor is subjected to greater resistance through the cooperation of the electromagnetic clutch and the coupling, thereby reducing the overload of the stepping motor and effectively improving the service life of the stepping motor. At the same time, with the cooperation of the positioning mechanism, the linkage assembly and the connecting rod, it is convenient to limit the position of the blade holder, so that the presence or absence of pipes inside will not affect the limiting of the blade holder. It is not only more convenient, but also improves the cutting efficiency, and solves the problems of the existing device having a short service life of the motor and inconvenient cutting when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of a partial three-dimensional structure from another viewing angle of the utility model;

[0018] Figure 3 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0019] Figure 4 It is a schematic diagram of a local three-dimensional cross-sectional structure in the utility model.

[0020] In the figure: 1. mounting frame; 2. stepping motor; 3. bracket; 4. electromagnetic clutch; 5. coupling; 6. bearing support; 7. three-claw chuck; 8. blade holder; 9. connecting shell; 10. sliding frame; 11. positioning mechanism; 111. bidirectional threaded rod; 112. sleeve frame; 113. positioning frame; 114. teeth; 12. linkage assembly; 13. connecting rod; 14. pointer; 15. scale line. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4As shown, the highway construction pipe cutting device includes a mounting frame 1, a stepper motor 2 is bolted to one side of the top of the mounting frame 1, a bracket 3 is bolted to the top of the mounting frame 1, an electromagnetic clutch 4 is installed inside the bracket 3, one side of the electromagnetic clutch 4 is fixedly connected to the output shaft of the stepper motor 2, and under the action of the electromagnetic clutch 4, the stepper motor 2 can carry a certain load when it is frequently started and stopped. When the stepper motor 2 is stuck, the load and torque are too large during the cutting process, the electromagnetic clutch 4 will slip, thereby cutting off the power output, thereby protecting the stepper motor 2 from damage and effectively increasing the service life of the stepper motor 2, and a coupling 5 is installed on one side of the electromagnetic clutch 4, and the coupling 5 can transmit power. A bearing support 6 is installed on the side, and the bearing support 6 can support the coupling 5 so that it can be in a stable state. A three-claw chuck 7 is installed on one side of the coupling 5. Under the action of the three-claw chuck 7, pipes of different diameters can be squeezed and limited so that they can be fixed, thereby facilitating the stepper motor 2 to drive the pipe to rotate. The center points of the stepper motor 2, electromagnetic clutch 4, coupling 5 and three-claw chuck 7 are all on the same horizontal line when rotating. Under this action, the three-claw chuck 7 will not rotate eccentrically when the stepper motor 2 rotates, effectively improving the stability of the three-claw chuck 7 when rotating. A blade holder 8 is provided on the surface of the mounting frame 1, and a blade and a support roller are installed inside the blade holder 8, which can cut the pipe when it rotates. A connecting shell 9 is installed at the bottom of the blade holder 8, and sliding frames 10 are fixedly connected to both sides of the connecting shell 9. The sliding frame 10 is designed as an L-shaped structure. The inner wall of the sliding frame 10 is slidably connected to the surface of the mounting frame 1. Under this action, the blade holder 8 can be guided when it moves, so that the blade holder 8 can be more stable when moving. A positioning mechanism 11 is installed in the inner cavity of the connecting shell 9. The positioning mechanism 11 can limit the blade holder 8 after the blade holder 8 moves, so that it will not move easily, so that the blade holder 8 will not move arbitrarily when cutting the pipe, effectively improving the cutting effect of the pipe. A linkage component 12 is installed at the bottom of the connecting shell 9. The linkage component 12 is composed of two gears meshing with each other. The linkage component 12 and the positioning mechanism 11 is used in conjunction with the linkage component 12, and a connecting rod 13 is provided on the surface of the linkage component 12. Under the cooperation of the connecting rod 13 and the linkage component 12, the positioning mechanism 11 can be adjusted to provide power for limiting the blade holder 8. The surface of the connecting rod 13 is slidably connected to the inner wall of the mounting frame 1, and both ends of the connecting rod 13 are fixed with handles for the convenience of the staff to apply force. Under this action, not only can the connecting rod 13 be more stable when moving, but also under the action of the handle, it is convenient for the staff to rotate the connecting rod 13. A pointer 14 is fixedly connected to the surface of the sliding frame 10, and scale lines 15 are provided on both sides of the surface of the mounting frame 1. The scale lines 15 are used in conjunction with the pointer 14. Under this action, the staff can easily and accurately locate the position of the blade holder 8.This makes it more convenient for the staff to move the blade holder 8.

[0023] The positioning mechanism 11 includes a bidirectional threaded rod 111, which is fixed to the inner cavity of the connecting shell 9 through a bearing seat. Both sides of the surface of the bidirectional threaded rod 111 are threadedly connected with a sleeve frame 112. The sleeve frame 112 is designed as a U-shaped structure. The surface of the sleeve frame 112 is slidably connected to the inner wall of the connecting shell 9. Under this action, the sleeve frame 112 can be guided when it moves under the action of the thread on the surface of the bidirectional threaded rod 111, so that it will not move with the bidirectional thread when moving. The rod 111 rotates to improve the accuracy of the position of the sleeve frame 112 when it moves. A positioning frame 113 is fixedly connected to one side of the sleeve frame 112, and teeth 114 are fixedly connected to both sides of the inner cavity of the mounting frame 1. The teeth 114 and the positioning frame 113 are mutually engaged. The number of teeth 114 is several. Under this action, when the blade frame 8 needs to be limited, the positioning frame 113 and the teeth 114 can be mutually engaged, so that the blade frame 8 can be fixed in one place, which is convenient for cutting the pipe.

[0024] It is worth noting that the technical features such as the stepper motor 2, electromagnetic clutch 4, coupling 5 and three-grip chuck 7 proposed in this technical solution should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected according to the conventional methods in the field, and this technical solution will not be further elaborated.

[0025] Working principle: firstly, the pipe to be cut is placed inside the three-claw chuck 7, and then the pipe is fixed under the action of the three-claw chuck 7, and then the position of the blade holder 8 is moved according to the required length of the pipe. After the blade holder 8 is moved to a suitable position under the cooperation of the pointer 14 and the scale line 15, the staff rotates the connecting rod 13, and the two-way threaded rod 111 is driven to rotate through the linkage assembly 12 under the action of the connecting rod 13, and the positioning frame 113 is connected with the teeth 114 through the sleeve frame 112 under the action of the thread on the surface of the two-way threaded rod 111. The blade holder 8 is touched, thereby limiting the position of the blade holder 8, and then the stepper motor 2 is turned on. Under the action of the stepper motor 2, the three-claw chuck 7 can be driven to rotate through the electromagnetic clutch 4 and the coupling 5, so that the three-claw chuck 7 drives the pipe to rotate. Then the staff uses the blade holder 8 to cut the pipe. When the stepper motor 2 is subjected to a large load during the cutting process, the stepper motor 2 can be protected under the action of the electromagnetic clutch 4, so as to improve the service life of the stepper motor 2. After the cutting is completed, the stepper motor 2 is turned off and the pipe inside the three-claw chuck 7 can be taken out.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road construction pipe cutting device, comprising a mounting frame (1) and a stepping motor (2) bolted to one side thereof, characterized in that: Also includes: A bracket (3) is bolted to the top of the mounting frame (1), an electromagnetic clutch (4) is installed inside the bracket (3), a coupling (5) is installed on one side of the electromagnetic clutch (4), a bearing support (6) is installed on one side of the coupling (5), a three-grip chuck (7) is installed on one side of the coupling (5), a blade holder (8) is arranged on the surface of the mounting frame (1), and a connecting shell (9) is installed on the bottom of the blade holder (8); A sliding frame (10) is fixed on both sides of a connecting shell (9), a positioning mechanism (11) is installed in the inner cavity of the connecting shell (9), a linkage assembly (12) is installed at the bottom of the connecting shell (9), a connecting rod (13) is arranged on the surface of the linkage assembly (12), a pointer (14) is fixedly connected to the surface of the sliding frame (10), and scale lines (15) are arranged on both sides of the surface of the mounting frame (1).

2. The highway construction pipe cutting device according to claim 1, characterized in that: The positioning mechanism (11) comprises a bidirectional threaded rod (111) installed in the inner cavity of the connecting shell (9) and a sleeve frame (112) threadedly connected to both sides of the surface thereof, and also comprises a positioning frame (113) fixed to one side of the sleeve frame (112) and teeth (114) fixed to both sides of the inner cavity of the mounting frame (1).

3. The highway construction pipe cutting device according to claim 2, characterized in that: The sleeve frame (112) is designed as a U-shaped structure, and the sleeve frame (112) is slidably connected to the connecting shell (9).

4. The highway construction pipe cutting device according to claim 2, characterized in that: The teeth (114) and the positioning frame (113) are mutually clamped, and there are a plurality of teeth (114).

5. The highway construction pipe cutting device according to claim 1, characterized in that: The center points of the stepping motor (2), the electromagnetic clutch (4), the coupling (5) and the three-claw chuck (7) are all on the same horizontal line when they rotate.

6. The highway construction pipe cutting device according to claim 1, characterized in that: The sliding frame (10) is designed as an L-shaped structure, and the inner wall of the sliding frame (10) is slidably connected to the surface of the mounting frame (1).

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