Quick disassembly type cylinder cutter connecting mechanism of hole pulling machine

Abstract

The utility model relates to the field of emergency equipment, in particular to a quick-release cylinder cutter connecting mechanism of a hole pulling machine, which comprises a connecting disc fixed on a main shaft and used for being connected with a cylinder cutter with a blade, the connecting disc is fixedly connected with the main shaft through a fixing component, and the main shaft penetrates through the connecting disc; a rectangular fixing convex buckle is fixedly connected to the side, away from the fixing assembly, of the connecting disc, the main shaft penetrates through the fixing convex buckle, a square-groove-shaped fixing groove is formed in the end, away from the cutting edge, of the cylindrical cutter, a shaft groove is formed in the fixing groove, and when the connecting disc abuts against the cylindrical cutter, the fixing convex buckle is inserted into the fixing groove. The main shaft is inserted into the shaft groove, a locking screw is arranged in the barrel cutter, the locking screw penetrates through the barrel cutter and then is in threaded connection with the interior of the main shaft, and the effect of prolonging the service life of the hole pulling machine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency equipment, in particular to a quick-detachable hole-opening machine barrel-knife connecting mechanism. Background Art

[0002] Urban pipeline emergency repair is an indispensable urban infrastructure protection industry in a city. Pipeline emergency repair can promptly repair faulty pipelines in urban infrastructure and ensure the normal operation of urban infrastructure.

[0003] In the current pipeline emergency repair construction work, the hole-pulling machine is a common pipeline drilling equipment. The hole-pulling machine can also be called a hole-pulling machine. Its structure usually includes a cylindrical fuselage, a handle is fixedly connected to the circumferential side of the fuselage, a motor is fixedly connected in the fuselage, the motor is connected to a main shaft, the end of the main shaft away from the motor extends out of the fuselage, a threaded hole is provided on the end of the main shaft away from the motor, and a barrel cutter is connected to the main shaft through the threaded hole. One end of the barrel cutter is open, and the open end of the barrel cutter is called a blade. The blade is canine-shaped, and a locking screw is provided at the end of the barrel cutter away from the blade. The locking screw is located inside the barrel cutter, and the locking screw passes through the barrel cutter and is threaded into the threaded hole. The locking screw presses the barrel cutter to the end of the main shaft. When in use, the handle provides a holding position for the worker, and the motor fixedly connected in the fuselage drives the main shaft to rotate. The barrel cutter rotates with the main shaft under the constraints of the locking screw and the threaded hole, and the worker cuts and drills the side wall of the pipeline through the rotating blade.

[0004] The above prior art has the following defects:

[0005] Currently, during operation, the connection between the cylinder cutter and the main shaft is mainly through the cooperation of the locking screw and the threaded hole. Under the high-speed rotation of the main shaft and the frequent vibrations during the working process, the tightness of the cooperation between the locking screw and the threaded hole will gradually decrease. After using it for a period of time, the cylinder cutter is prone to slipping and loosening, or even the cylinder cutter will not rotate directly. The usage time is short and the practicality is not high. Utility Model Content

[0006] The purpose of the utility model is to provide a quick-release hole-opening machine barrel knife connection mechanism to achieve the effect of extending the use time of the hole-opening machine, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] The quick-release hole-opening machine barrel cutter connection mechanism comprises a connecting plate fixed on the main shaft and used to connect to the barrel cutter with a blade. The connecting plate is fixedly connected to the main shaft through a fixing assembly, and the main shaft passes through the connecting plate; a fixing convex buckle is fixedly connected to the side of the connecting plate away from the fixing assembly, and the fixing convex buckle is arranged in a rectangular shape. The main shaft passes through the fixing convex buckle, and a square groove-shaped fixing groove is provided on the end of the barrel cutter away from the blade, and an axial groove is provided in the fixing groove. When the connecting plate abuts against the barrel cutter, the fixing convex buckle is inserted into the fixing groove, and the main shaft is inserted into the axial groove. A locking screw is provided in the barrel cutter, and the locking screw passes through the barrel cutter and is threadedly connected to the main shaft.

[0009] As a preferred embodiment of the present invention, a reinforcing component is provided between the fixing protrusion and the fixing groove, and the reinforcing component is used to keep the relative positions of the fixing protrusion and the fixing groove fixed during rotation.

[0010] As a preferred embodiment of the utility model, the reinforcement component includes a long strip of reinforcement pile fixedly connected in the fixing groove, the cross-section of the reinforcement pile is triangular, and a reinforcement groove is provided on the end surface of the fixing boss away from the connecting plate, the shape of the reinforcement groove matches the shape of the reinforcement pile, and when the fixing boss is inserted into the fixing groove, the reinforcement pile is inserted into the reinforcement groove.

[0011] As a preferred embodiment of the utility model, the fixing assembly includes a fixing cylinder, the end of the fixing cylinder is fixedly connected to the connecting plate, the main shaft passes through the fixing cylinder, and a fixing bolt is arranged on the outside of the fixing cylinder. The fixing bolt is perpendicular to the axis of the fixing cylinder, and the fixing bolt passes through the fixing cylinder and is threadedly connected to the main shaft.

[0012] As a preferred embodiment of the utility model, a connecting hole is opened on the connecting disk, the axis of the connecting hole is parallel to the axis of the connecting disk, a connecting bolt is arranged in the connecting hole, and the connecting bolt passes through the connecting hole and is threadedly connected to the barrel cutter.

[0013] As a preferred embodiment of the present invention, four connecting holes are provided, and the four connecting holes are respectively located at four top corners of the fixing protrusion, the number of connecting bolts is equal to the number of connecting holes, and the connecting bolts correspond to the connecting holes one by one.

[0014] Beneficial Effects

[0015] The beneficial effects of the utility model are:

[0016] When in use, first, the locking screw is used to fix the barrel cutter and the spindle. The fixing assembly fixes the connecting disk to the spindle, so that the spindle drives the connecting disk to rotate synchronously. When the connecting disk is inserted into the barrel cutter, the fixing convex buckle is inserted into the fixing groove. Since the fixing convex buckle and the fixing groove are both rectangular, when the barrel cutter rotates synchronously with the spindle, the fixing convex buckle and the fixing groove can provide constraints to the barrel cutter through their own shapes, so that the barrel cutter keeps rotating synchronously with the spindle, and prevents the barrel cutter from keeping rotating synchronously with the spindle. Even when the locking screw is worn out, the fixing convex buckle and the fixing groove can accurately transmit the torque of the spindle to the barrel cutter through the mutual coordination of their shapes, thereby ensuring that the barrel cutter keeps rotating synchronously with the spindle after the locking screw is worn out, thereby achieving the effect of extending the use time of the hole-pulling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the structure of the utility model;

[0020] Figure 3 A schematic diagram showing the structure of the reinforcement piles.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Spindle; 2. Cylinder knife; 21. Blade; 3. Connecting plate; 31. Fixing assembly; 311. Fixing cylinder; 312. Fixing bolt; 4. Fixing cam; 5. Fixing groove; 6. Locking screw; 7. Reinforcement assembly; 71. Reinforcement pile; 72. Reinforcement groove; 8. Connecting hole; 81. Connecting bolt. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] See also Figure 1-3As shown, the quick-release hole-drawing machine barrel cutter 2 connection mechanism is mainly used between the main shaft 1 and the barrel cutter 2. The connection structure is constrained by the shape so that the barrel cutter 2 can continuously transmit the torque of the main shaft 1 to the barrel cutter 2 when the constraint force of the original basic fixed structure decreases, thereby keeping the barrel cutter 2 and the main shaft 1 rotating synchronously, reducing the influence of the original basic fixed structure on the service life of the hole-drawing machine, and achieving the effect of extending the service life of the hole-drawing machine.

[0025] See also Figure 1-3 As shown, the connection structure includes a circular connecting disk 3, which is fixedly connected to the main shaft 1 through a fixing assembly 31. The main shaft 1 is arranged through the connecting disk 3. The fixing assembly 31 includes a cylindrical fixing cylinder 311. The end of the fixing cylinder 311 is fixedly connected to the connecting disk 3. The main shaft 1 passes through the fixing cylinder 311. A fixing bolt 312 is arranged on the outer side of the fixing cylinder 311. The fixing bolt 312 is perpendicular to the axis of the fixing cylinder 311. The fixing bolt 312 passes through the fixing cylinder 311 and is threadedly connected to the main shaft 1. The fixing bolt 312 is simple to use and has a stable constraint state, which is convenient for workers to install the main shaft 1 and the connecting disk 3.

[0026] See also Figure 1-3 As shown, a fixing cam 4 is fixedly connected to the side of the connecting disk 3 away from the fixing component 31, and the fixing cam 4 is arranged in a rectangular shape. The main shaft 1 passes through the fixing cam 4, and a square groove-shaped fixing groove 5 is provided on the end of the tube knife 2 away from the blade 21, and an axial groove is provided in the fixing groove 5. When the connecting disk 3 abuts the tube knife 2, the fixing cam 4 is inserted into the fixing groove 5, and the main shaft 1 is inserted into the axial groove. A locking screw 6 is arranged in the tube knife 2, and the locking screw 6 passes through the tube knife 2 and is threadedly connected to the main shaft 1.

[0027] See also Figure 1-3 As shown, a reinforcement component 7 is arranged between the fixed protrusion 4 and the fixed groove 5, and the reinforcement component 7 includes a long strip-shaped reinforcement pile 71 fixedly connected in the fixed groove 5, and the cross-section of the reinforcement pile 71 is arranged in a triangular shape. A reinforcement groove 72 is opened on the end surface of the fixed protrusion 4 away from the connecting plate 3, and the shape of the reinforcement groove 72 matches the shape of the reinforcement pile 71. When the fixed protrusion 4 is inserted into the fixed groove 5, the reinforcement pile 71 is inserted into the reinforcement groove 72. The setting of the reinforcement component 7 can further improve the constraint of the main shaft 1 on the cylinder knife 2 through the shapes of the reinforcement pile 71 and the reinforcement groove 72, so that the relative positions of the main shaft 1 and the cylinder knife 2 remain stable during rotation.

[0028] A connecting hole 8 is provided on the connecting disk 3. There are four connecting holes 8. The four connecting holes 8 are respectively located at the four top corners of the fixing protrusion 4. The axis of each connecting hole 8 is parallel to the axis of the connecting disk 3. A connecting bolt 81 is provided in each connecting hole 8. The connecting bolt 81 penetrates the connecting hole 8 and is threadedly connected to the cylinder knife 2. The provided connecting holes 8 and connecting bolts 81 can assist the locking screw 6 in fixing the cylinder knife 2 and the main shaft 1, so that when the locking screw 6 is loosened, the four connecting bolts 81 cooperate with the fixing assembly 31 to continue to lock the cylinder knife 2 and the main shaft 1, thereby further extending the processing service life of the cylinder knife 2.

[0029] A specific application of this embodiment is:

[0030] When in use, first, the fixing assembly 31 fixes the connection disk 3 to the main shaft 1, and the locking screw 6 fixes the tube cutter 2 and the main shaft 1, so that the main shaft 1 drives the connection disk 3 to rotate synchronously. Then, when the connection disk 3 is inserted into the tube cutter 2, the fixing convex buckle 4 is inserted into the fixing groove 5, and the connecting bolt 81 is tightened in the tube cutter 2, and the connecting bolt 81 constrains the relative position between the connection disk 3 and the tube cutter 2. Since the fixing convex buckle 4 and the fixing groove 5 are both rectangular, when the tube cutter 2 rotates synchronously with the main shaft 1, the fixing convex buckle 4 and the fixing groove 5 can provide constraints to the tube cutter 2 through their own shapes, so that the tube cutter 2 keeps rotating synchronously with the main shaft 1, and prevents the tube cutter 2 from keeping rotating synchronously with the main shaft 1. Even when the locking screw 6 is lost, the fixing convex buckle 4 and the fixing groove 5 can accurately transmit the torsional force of the main shaft 1 to the tube cutter 2 through the mutual cooperation of the shapes, thereby ensuring that the tube cutter 2 keeps rotating synchronously with the main shaft 1 after the locking screw 6 is lost. In summary, through the above steps, the effect of extending the service life of the hole punching machine is achieved.

[0031] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A quick-release hole-opening machine barrel knife (2) connection mechanism, characterized in that: The invention comprises a connecting plate (3) fixed on a main shaft (1) and used for connecting with a tube knife (2) with a blade (21); the connecting plate (3) is fixedly connected to the main shaft (1) through a fixing assembly (31); the main shaft (1) passes through the connecting plate (3); a fixing convex buckle (4) is fixedly connected to a side of the connecting plate (3) away from the fixing assembly (31); the fixing convex buckle (4) is arranged in a rectangular shape; the main shaft (1) passes through the fixing convex buckle (4); a square groove-shaped fixing groove (5) is provided on the end of the tube knife (2) away from the blade (21); an axial groove is provided in the fixing groove (5); when the connecting plate (3) abuts against the tube knife (2), the fixing convex buckle (4) is inserted into the fixing groove (5), the main shaft (1) is inserted into the axial groove, and a locking screw (6) is provided in the tube knife (2); the locking screw (6) passes through the tube knife (2) and is threadedly connected to the main shaft (1).

2. The quick-release hole-opening machine barrel knife (2) connection mechanism according to claim 1, characterized in that: A reinforcing component (7) is provided between the fixing convex buckle (4) and the fixing groove (5), and the reinforcing component (7) is used to keep the relative positions of the fixing convex buckle (4) and the fixing groove (5) fixed during rotation.

3. The quick-release hole-opening machine barrel knife (2) connection mechanism according to claim 2, characterized in that: The reinforcing assembly (7) comprises a long reinforcing pile (71) fixedly connected in the fixing groove (5); the cross section of the reinforcing pile (71) is triangular; a reinforcing groove (72) is provided on the end surface of the fixing convex buckle (4) away from the connecting plate (3); the shape of the reinforcing groove (72) matches the shape of the reinforcing pile (71); when the fixing convex buckle (4) is inserted into the fixing groove (5), the reinforcing pile (71) is inserted into the reinforcing groove (72).

4. The quick-release hole-opening machine barrel knife (2) connection mechanism according to claim 3, characterized in that: The fixing assembly (31) comprises a fixing cylinder (311), the end of the fixing cylinder (311) is fixedly connected to the connecting plate (3), the main shaft (1) passes through the fixing cylinder (311), a fixing bolt (312) is arranged on the outside of the fixing cylinder (311), the fixing bolt (312) is perpendicular to the axis of the fixing cylinder (311), and the fixing bolt (312) passes through the fixing cylinder (311) and is threadedly connected to the main shaft (1).

5. The quick-release hole-opening machine barrel knife (2) connection mechanism according to claim 4, characterized in that: The connecting plate (3) is provided with a connecting hole (8), the axis of the connecting hole (8) is parallel to the axis of the connecting plate (3), a connecting bolt (81) is arranged in the connecting hole (8), and the connecting bolt (81) passes through the connecting hole (8) and is threadedly connected to the barrel knife (2).

6. The quick-release hole-opening machine barrel knife (2) connection mechanism according to claim 5, characterized in that: There are four connecting holes (8), which are respectively located at four apex corners of the fixing protrusion (4). The number of connecting bolts (81) is equal to the number of connecting holes (8), and the connecting bolts (81) correspond to the connecting holes (8) one by one.

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