Variable-angle round hole scabbling device with guiding function

Abstract

The utility model discloses a guiding angle-variable round hole scabbling device which comprises a steering arm (1) connected to the head of an excavator, the steering arm (1) is connected with a driving device (4) through a universal joint (2), the power output end of the driving device (4) is connected with an elastic guiding cone (6) and a polishing frisbee (5), and the polishing frisbee (5) is arranged on the outer side of the elastic guiding cone (6) in a sleeved mode. The polishing flying disc (5) is connected with a throwing arm (5.6) which expands outwards under the centrifugal effect, and the tail end of the throwing arm (5.6) is connected with a chiseling wheel (5.4). The chiseling tool is easy to operate, does not need to replace the tool bit, can meet the chiseling requirements of anchor pockets with different hole diameters, solves the problem of chiseling of anchor pockets of concrete box girders and the like, and can effectively improve the construction efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of chiseling construction, and particularly relates to a variable-angle round-hole chiseling device with a guide. Background Technique

[0002] After concrete pouring is demolded, it needs to go through processes such as tensioning, grouting, and anchor hole plugging; when plugging the anchor hole, since the beam body has been tensioned, the inner wall of the anchor hole is dry and smooth, and the newly filled concrete is not easy to fully adhere to the beam body, so voids and dry shrinkage are likely to occur, resulting in cracks. Therefore, the inner wall needs to be chiseled.

[0003] The front cutting heads of existing chiseling devices are mostly of fixed size, and need to be replaced and adjusted according to the diameter of the anchor hole, which is cumbersome to operate and will also affect the construction efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a variable-angle round-hole chiseling device with a guide, which is simple to operate, does not require replacement of the cutting head, can meet the chiseling needs of anchor holes with different diameters, solves the chiseling problems of anchor holes such as concrete box girders, and can effectively improve the construction efficiency.

[0005] To achieve the above purpose, the variable-angle round-hole chiseling device with a guide of the utility model includes a steering arm connected to the head of an excavator. The steering arm is connected with a driving device through a universal joint. The power output end of the driving device is connected with a grinding flywheel. An elastic guide cone is connected to the grinding flywheel. The grinding flywheel is sleeved outside the elastic guide cone. A throwing arm that unfolds outward under centrifugal force is connected to the grinding flywheel, and a chiseling wheel is connected to the end of the throwing arm.

[0006] As a further scheme of the utility model: the elastic guide cone includes a connecting shaft. One end of the connecting shaft is connected with the grinding flywheel, and the other end is connected with an outer guide cone. An elastic member is sleeved on the connecting shaft. The elastic member includes a spring and an inner guide seat connected to the end of the spring. The other end of the spring is connected with the grinding flywheel, and the other end of the inner guide seat fits against the outer guide cone.

[0007] As a further scheme of the utility model: the grinding flywheel includes a first flywheel and a second flywheel. The first flywheel is connected with the power output end of the driving device. The first flywheel and the second flywheel are connected by connecting columns distributed at equal intervals in a ring shape. The connecting columns are connected with the throwing arm through torsion springs. A limiting column for limiting the throwing arm is also connected between the first flywheel and the second flywheel.

[0008] As a further scheme of the utility model: the chiseling wheel is rotatably connected with the throwing arm. The chiseling wheel is of a polygonal structure, and a chisel head is connected to the outer end point.

[0009] As a further solution of the utility model: A number of anti-pulling devices are connected between the steering arm and the driving device, and the anti-pulling devices are evenly distributed around the universal joint.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] An elastic guiding cone is provided, which can not only achieve rapid positioning, but also utilize the spring to buffer the chiseling force, and an outer guiding cone is provided to lock the cone head;

[0012] A number of swing arms that can expand outwards under the action of centrifugal force are connected to the grinding disc. The ends of the swing arms are connected to the chiseling wheels. The contraction and extension of the swing arms can adapt to holes of different sizes, thereby improving the chiseling construction efficiency;

[0013] The steering arm is connected to the driving device through a universal joint, which is convenient for adapting to holes of different angles and ensuring concentricity. In addition, an anti-pulling device is provided, which can also provide a fixing effect on the driving device to prevent the driving device from rotating due to inertia during the process of the grinding disc stopping rotating. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram (swing arms expanded) of the variable-angle round-hole chiseling device with a guide of the utility model.

[0015] Figure 2 is a front-view structural diagram (swing arms contracted) of the variable-angle round-hole chiseling device with a guide of the utility model.

[0016] Figure 3 is a cross-sectional structural diagram (swing arms contracted) of the variable-angle round-hole chiseling device with a guide of the utility model

[0017] In the figure: 1. Steering arm, 2. Universal joint, 3. Anti-pulling device, 4. Driving device, 5. Grinding disc, 6. Elastic guiding cone;

[0018] 5.1. First disc, 5.2. Limit post, 5.3. Torsion spring, 5.4. Chiseling wheel, 5.5. Chisel head, 5.6. Swing arm, 5.7. Connecting column, 5.8. Second disc;

[0019] 6.1. Outer guiding cone, 6.2. Inner guiding seat, 6.3. Spring, 6.4. Connecting shaft, 6.4. Fixed seat. Detailed Embodiment

[0020] The following further describes the utility model with reference to the drawings.

[0021] As shown in Figure 1 and Figure 2As shown in the figure, the variable-angle circular hole roughening device with a guide includes a steering arm 1 connected to the head of an excavator. The steering arm 1 is connected to a driving device 4 through a universal joint 2. The power output end of the driving device 4 is connected to an elastic guide cone 6 and a grinding flywheel 5. The grinding flywheel 5 is sleeved outside the elastic guide cone 6. A swinging arm 5.6 that unfolds outward under centrifugal force is connected to the grinding flywheel 5. The end of the swinging arm 5.6 is connected to a roughening wheel 5.4.

[0022] Among them, the universal joint 2 can adopt a ball hinge structure, which can meet the adaptability of the roughening device to holes with different angles. The driving device 4 uses a hydraulic motor, and its oil circuit is connected to the excavator's oil circuit, which can drive the grinding flywheel 5 and the elastic guide cone 6 to rotate at high speed, so as to realize that the swinging arm 5.6 on the grinding flywheel 5 can unfold outward under the action of centrifugal force.

[0023] As Figure 1 and Figure 3 As shown in the figure, further, the elastic guide cone 6 includes a connecting shaft 6.4. One end of the connecting shaft 6.4 is connected to the grinding flywheel 5, and the other end is connected to an outer guide cone 6.1. An elastic member is sleeved on the connecting shaft 6.4. The elastic member includes a spring 6.3 and an inner guide seat 6.2 connected to the end of the spring 6.3. The other end of the spring 6.3 is connected to the grinding flywheel 5. A fixing seat 6.5 for connecting the spring 6.3 is arranged at the end of the connecting shaft 6.4. The connecting shaft 6.4 and the spring 6.3 are connected to the grinding flywheel 5 through the fixing seat 6.5. The other end of the inner guide seat 6.2 fits against the outer guide cone 6.1. Utilize the elastic force provided by the spring 6.3 to buffer the propulsive force of the roughening device.

[0024] As Figures 1 to 3 As shown in the figure, in order to enable the swinging arm 5.6 to unfold under centrifugal force, further, the grinding flywheel 5 includes a first flywheel 5.1 and a second flywheel 5.8. The first flywheel 5.1 is connected to the power output end of the driving device 4 and rotates together. The elastic guide cone 6 is connected to the first flywheel 5.1. The first flywheel 5.1 and the second flywheel 5.8 are connected by connecting columns 5.7 distributed at equal intervals in a ring shape. The swinging arm 5.6 is connected to the connecting column 5.7 through a torsion spring 5.3. A limiting column 5.2 for cooperating with the torsion spring 5.3 to limit the swinging arm 5.6 is also connected between the first flywheel 5.1 and the second flywheel 5.8. During the rotation of the grinding flywheel 5, as long as the centrifugal force overcomes the acting force of the torsion spring 5.3, the swinging arm 5.6 can unfold outward.

[0025] In order to ensure the roughening effect, further, the roughening wheel 5.4 is rotatably connected to the swinging arm 5.6. The roughening wheel 5.4 is of a polygonal structure, and a chisel head 5.5 is connected to the outer end point.

[0026] To prevent the drive unit 4 from spinning due to inertia when the grinding disc 5 stops rotating, several pullback devices 3 are further connected between the steering arm 1 and the drive unit 4. The pullback devices 3 are evenly spaced around the universal joint 2. The pullback devices include a fixing ring fixed to the drive unit 4 and the steering arm 1. The two fixing rings are connected by a connecting ring. The pullback devices 3 cooperate with the universal joint 2. The universal joint 2 enables the roughening device to adapt to the roughening hole wall with a certain inclination angle. The pullback devices 3 provide a fixed effect on the drive unit 4, ensuring stable operation of the roughening device.

[0027] During specific use of the present invention, the elastic guide cone 6 is used to position the grinding disc 5 and the wall of the chiseled hole, the oil circuit of the driving device 4 is connected to the oil circuit of the excavator, the excavator is used to operate the chiseling device, and the grinding disc 5 is driven to rotate at high speed, so that the swing arm 5.6 is expanded outward under the centrifugal action, and the chiseling work is completed by the chiseling head 5.5 on the chiseling wheel 5.4.

Claims

1. The guiding variable-angle circular hole roughening device comprises a steering arm (1) connected to the head of an excavator, and is characterized in that, The steering arm (1) is connected to a driving device (4) through a universal joint (2). The power output end of the driving device (4) is connected to a grinding flywheel (5). An elastic guiding cone (6) is connected to the grinding flywheel (5). The grinding flywheel (5) is sleeved outside the elastic guiding cone (6). A throwing arm (5.6) that expands outward under centrifugal force is connected to the grinding flywheel (5). The end of the throwing arm (5.6) is connected to a scarifying wheel (5.4).

2. The variable-angle circular hole roughening device with a guide according to claim 1, characterized in that The elastic guiding cone (6) includes a connecting shaft (6.4). One end of the connecting shaft (6.4) is connected to the grinding flywheel (5), and the other end is connected to an outer guiding cone (6.1). An elastic member is sleeved on the connecting shaft (6.4). The elastic member includes a spring (6.3) and an inner guiding seat (6.2) connected to the end of the spring (6.3). The other end of the spring (6.3) is connected to the grinding flywheel (5). The other end of the inner guiding seat (6.2) fits against the outer guiding cone (6.1).

3. The variable-angle round-hole chiseling device with a guide according to claim 1 or 2, characterized in that, The grinding flywheel (5) includes a first flywheel (5.1) and a second flywheel (5.8). The first flywheel (5.1) is connected to the power output end of the driving device (4). The first flywheel (5.1) and the second flywheel (5.8) are connected by connecting columns (5.7) distributed at equal intervals in a ring shape. The throwing arm (5.6) is connected to the connecting column (5.7) through a torsion spring (5.3). A limiting column (5.2) for restricting the throwing arm (5.6) is also connected between the first flywheel (5.1) and the second flywheel (5.8) in cooperation with the torsion spring (5.3).

4. The variable-angle circular hole chiseling device with a guide according to claim 3, characterized in that, The scarifying wheel (5.4) is rotatably connected to the throwing arm (5.6). The scarifying wheel (5.4) has a polygonal structure, and a chisel head (5.5) is connected to the outer end point.

5. The variable-angle circular hole roughening device with a guide according to claim 3, characterized in that, A number of anti-pulling devices (3) are connected between the steering arm (1) and the driving device (4). The anti-pulling devices (3) are distributed at equal intervals around the universal joint (2).

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