Expansion joint cutting equipment for bridge construction

Abstract

The utility model belongs to the field of road cutting machines, and relates to expansion joint cutting equipment for bridge construction, which comprises a moving platform, a cutting blade, a motor for driving the cutting blade, and a first hydraulic cylinder for driving the cutting blade and the motor to move up and down, a second hydraulic cylinder is installed at the top end of the portal frame, a lifting frame is connected to the lower portion of the second hydraulic cylinder, the lifting frame is connected with a dust suction hood mechanism, the dust suction hood mechanism is connected with a dust suction pump, the dust suction pump is connected with a filtering tank, the dust suction hood mechanism comprises a supporting rod, and the lower end of the supporting rod is connected with a shaft seat; a dust collection cavity is hinged to the shaft seat, a dust collection cover is connected to the side, close to the cutting blade, of the dust collection cavity, and rolling wheels are rotationally connected to the lower side of the dust collection cavity.

Description

Technical Field

[0001] The utility model belongs to the field of road cutters and relates to a cutting device for expansion joints in bridge construction. Background Technique

[0002] The application document with the application number CN202320428827.7 discloses a road expansion joint cutter, in which a dust removal component is installed to suck away the dust generated when the cutting blade cuts the road surface. Since the dust is generated at the contact point between the cutting blade and the ground, the dust suction effect is the best when the dust suction hood is close to the ground, and the dust suction hood is lifted to facilitate movement when dust suction is not required. However, the position of the dust suction hood in this application document is fixed. Therefore, there is an urgent need for a mechanism that can change the height of the dust suction hood to improve the self-dust suction effect of the road expansion joint cutter. Content of the Utility Model

[0003] Aiming at the problem that the dust suction hood in the above cannot be moved, the utility model provides a cutting device for expansion joints in bridge construction that can control the up and down movement of the dust suction hood.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows: A cutting device for expansion joints in bridge construction, including a moving platform, a cutting blade, a motor for driving the cutting blade, a first hydraulic cylinder for driving the cutting blade and the motor to move up and down. An elevating mechanism is arranged on the moving platform. The elevating mechanism includes a gantry. A second hydraulic cylinder is installed at the top of the gantry. A lifting frame is connected below the second hydraulic cylinder. The lifting frame is connected with a dust suction hood mechanism. The dust suction hood mechanism is connected with a dust suction pump. The dust suction pump is connected with a filter tank. The dust suction hood mechanism includes a support rod. The lower end of the support rod is connected with a shaft seat. The shaft seat is hinged with a dust suction cavity. One side of the dust suction cavity close to the cutting blade is connected with a dust suction hood. A roller is rotatably connected to the lower side of the dust suction cavity.

[0005] Preferably, a limiting frame is connected to the side of the dust suction cavity. The limiting frame is provided with a limiting groove. The support rod passes through the limiting groove.

[0006] Preferably, a dust suction hood mechanism is further connected to the lifting frame. This dust suction hood mechanism is connected with a blower. The two dust suction hood mechanisms are respectively arranged on both sides of the cutting blade.

[0007] Preferably, the gantry is connected with a slide rail. The slide rail is slidably connected with a slider. The slider is fixedly connected with the lifting frame.

[0008] Preferably, a hydraulic pump machine and a storage battery are arranged on the moving platform.

[0009] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0010] The utility model drives the dust suction hood mechanism to move up and down through a lifting mechanism. When dust suction is required, the dust suction hood is brought close to the ground. When dust suction is not required, the dust suction hood is moved away from the ground to facilitate movement.

[0011] The dust suction cavity in the utility model is rotatable. When passing over stones or protrusions under the dust suction hood, the dust suction cavity can swing. At the same time, a roller is rotatably connected below the dust suction cavity to prevent the dust suction hood from rubbing against the ground.

[0012] The utility model is also provided with a blower, which can promote the dust suction pump to inhale dust. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the mechanism of an expansion joint cutting device for bridge construction;

[0015] Figure 2 It is Figure 1 The enlarged view of the mechanism at A in

[0016] In the above figures, 1, moving platform; 11, hydraulic pump machine; 12, storage battery; 2, cutting blade; 3, motor; 4, first hydraulic cylinder; 5, lifting mechanism; 51, gantry; 52, second hydraulic cylinder; 53, lifting frame; 54, slide rail; 55, slider; 6, dust suction hood mechanism; 61, support rod; 62, shaft seat; 63, dust suction cavity; 64, dust suction hood; 65, roller; 66, limit frame; 7, dust suction pump; 8, filter tank; 9, blower. Detailed Embodiments

[0017] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0019] Such as Figure 1 、 Figure 2As shown in the figure, in order to enable the dust suction hood mechanism 6 to move up and down, a telescopic joint cutting device for bridge construction includes a moving platform 1, a cutting blade 2, a motor 3 for driving the cutting blade 2, and a first hydraulic cylinder 4 for driving the cutting blade 2 and the motor 3 to move up and down. The above structure and its working method belong to the prior art, and will not be described in detail in the present invention.

[0020] The present invention is provided with a lifting mechanism 5 on the moving platform 1. The lifting mechanism 5 includes a gantry 51. A second hydraulic cylinder 52 is installed at the top of the gantry 51. A lifting frame 53 is connected below the second hydraulic cylinder 52. The lifting frame 53 is connected with a dust suction hood mechanism 6. Thus, the second hydraulic cylinder 52 can drive the dust suction hood mechanism 6 to move up and down. The dust suction hood mechanism 6 is connected with a dust suction pump 7. A hose is connected between the dust suction hood mechanism 6 and the dust suction pump 7. The dust suction pump 7 is connected with a filter tank 8. That is, the dust suction pump 7 sucks in dust through the dust suction hood mechanism 6 and discharges it into the filter tank 8. The filter tank 8 is used to filter dust and discharge the filtered air into the external atmosphere. The dust suction hood mechanism 6 includes a support rod 61. The lower end of the support rod 61 is connected with a shaft seat 62. The shaft seat 62 is hinged with a dust suction chamber 63. One side of the dust suction chamber 63 close to the cutting blade 2 is connected with a dust suction hood 64. A roller 65 is rotatably connected to the lower side of the dust suction chamber 63.

[0021] Specifically, the present invention drives the dust suction hood mechanism 6 to move up and down through the second hydraulic cylinder 52, making it close to the ground or far from the ground or at a custom height. When sucking dust, the dust suction hood 64 is made to be close to the ground to achieve a better dust suction effect. And the dust suction chamber 63 can rotate. When there are stones or protrusions passing under the dust suction hood 64, the dust suction hood 64 can swing along the slope to pass over the stones or protrusions. A roller 65 is also rotatably connected to the lower side of the dust suction chamber 63 to prevent the rotatable dust suction hood 64 from rubbing against the ground due to gravity.

[0022] Further, a limiting frame 66 is connected to the side of the dust suction chamber 63. The limiting frame 66 is provided with a limiting groove, and the support rod 61 passes through the limiting groove.

[0023] Specifically, when the dust suction chamber 63 rotates, it drives the limiting frame 66 to move, but the support rod 61 is only affected by the lifting frame 53 and moves up and down. Therefore, the size of the limiting groove limits the rotation range of the dust suction chamber 63 to prevent the dust suction chamber 63 from rotating excessively.

[0024] Further, another dust suction hood mechanism 6 is also connected to the lifting frame 53. This dust suction hood mechanism 6 is connected with a blower 9. The two dust suction hood mechanisms 6 are respectively arranged on both sides of the cutting blade 2. The blower 9 blows air to promote the dust to float to the other side of the cutting blade 2, improving the dust suction effect of the dust suction pump 7 and making the dust reduction effect better.

[0025] Further, the gantry 51 is connected with a slide rail 54, the slide rail 54 is slidably connected with a slider 55, and the slider 55 is fixedly connected with the lifting frame 53, so as to increase the stability when the lifting frame 53 moves up and down.

[0026] Further, a hydraulic pump 11 and a storage battery 12 are arranged on the moving platform 1.

[0027] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An expansion joint cutting device for bridge construction, comprising a mobile platform, a cutting blade, a motor for driving the cutting blade, and a first hydraulic cylinder for driving the cutting blade and the motor to move up and down, characterized in that: The mobile platform is provided with a lifting mechanism, which includes a gantry, a second hydraulic cylinder is installed on the top of the gantry, a lifting frame is connected to the lower part of the second hydraulic cylinder, the lifting frame is connected to a dust hood mechanism, the dust hood mechanism is connected to a dust pump, the dust pump is connected to a filter tank, the dust hood mechanism includes a support rod, the lower end of the support rod is connected to an axle seat, a dust chamber is hinged on the axle seat, the dust chamber is connected to the dust hood on the side close to the cutting blade, and a roller is rotatably connected to the lower side of the dust chamber.

2. The expansion joint cutting equipment for bridge construction according to claim 1, characterized in that: The side surface of the dust suction chamber is connected to a limiting frame, the limiting frame is provided with a limiting groove, and the support rod passes through the limiting groove.

3. The expansion joint cutting device for bridge construction according to claim 2, characterized in that: The lifting frame is also connected to a dust hood mechanism, which is connected to a blower. The two dust hood mechanisms are respectively arranged on both sides of the cutting blade.

4. The expansion joint cutting equipment for bridge construction according to claim 3, characterized in that: The gantry is connected with a slide rail, the slide rail is slidably connected with a slider, and the slider is fixedly connected with the lifting frame.

5. The expansion joint cutting device for bridge construction according to claim 4, characterized in that: The mobile platform is provided with a hydraulic pump and a battery.

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