Joint cutting equipment for road construction

Abstract

The utility model relates to the technical field of road construction, in particular to joint cutting equipment for road construction, which comprises a carrier plate fixedly connected with an engineering cart, two connecting seats are fixed at the bottom of the carrier plate, a transmission shaft is rotatably connected between the two connecting seats, a supporting pipe is detachably fixed at one end of the transmission shaft, and a connecting rod is fixed at the other end of the transmission shaft. A movable shaft is slidably clamped in the supporting pipe, cutting blades are fixed to the outer side of the movable shaft and the outer side of the transmission shaft, and a traction piece used for pulling the movable shaft to move is arranged on the outer side of the movable shaft. According to the device, the first motor drives the transmission shaft and the cutting blades on the interaction shaft to rotate, the electric push rod drives the two cutting blades installed on the carrier plate to move downwards synchronously, the two cutting blades can cut joints from the two sides of a damaged area at the same time, and joint cutting efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a seam cutting device used for road construction. Background Art

[0002] The road construction cutting equipment generally consists of an engineering cart and a cutting device. The cutting device is installed on the cart. The cart carries the cutting device and moves on the road. At the same time, the cutting blade on the cutting device cuts the road surface. During the repair of the local potholes in the asphalt road, the cutting device will be used to cut and surround the damaged area. By cutting and surrounding the damaged area, the damaged road surface can be isolated from the intact road surface, which helps prevent the further expansion of the damaged area and ensures that the repair work is more concentrated and effective.

[0003] At present, the slitting equipment is basically equipped with a cutting blade. When slitting a locally damaged area of ​​the road surface, the cart needs to be moved back and forth many times so that the slitting equipment can carry the cutting blade to cut around the damaged area. The slitting is carried out by moving the engineering cart many times, which requires a lot of manpower and has poor slitting efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a slotting device for road construction to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A seam cutting device for road construction comprises a carrier plate fixedly connected to an engineering cart, two connecting seats are fixed at the bottom of the carrier plate, a transmission shaft is rotatably connected between the two connecting seats, a support tube is detachably fixed to one end of the transmission shaft, a movable shaft is slidably engaged inside the support tube, cutting blades are fixed to the outer sides of the movable shaft and the transmission shaft, a traction member for pulling the movable shaft to move a position is arranged on the outer side of the movable shaft, a screw rod for driving the traction member to move a position is rotatably connected inside the carrier plate, a motor for driving the transmission shaft to rotate is fixed to the top surface of the carrier plate, electric push rods for driving the carrier plate to move up and down are fixed to both ends of the carrier plate, and a protective cover is provided on the outer side of the cutting blade.

[0007] Furthermore, a synchronous pulley is sleeved and fixed on the output end of the motor 1 and the outer side of the transmission shaft, a synchronous belt is connected for transmission between the two synchronous pulleys, and a rectangular through hole is opened on the top surface of the engineering cart for the connection seat to pass through.

[0008] Furthermore, a second motor is fixed on the top surface of the carrier plate, and mutually meshing gears are fixed on the output end of the second motor and one end of the lead screw.

[0009] Furthermore, the traction member includes a threaded tube, one end of which is screwed together with a screw rod, one end of which is fixed with a connecting rod rotatably sleeved with a movable shaft, one end of which is fixed with a transmission block screwed together with the screw rod, and the transmission block is slidably connected to the carrier plate.

[0010] Furthermore, a slide groove is provided on the outer side of the movable shaft, a slide bar slidably connected to the slide groove is fixed on the inner side of the support tube, and a casing is fixed on the top of the engineering cart.

[0011] Furthermore, a movable cover is fixed at one end of the protective cover, the movable cover comprises a fixed frame, a movable frame is slidably sleeved on the bottom of the fixed frame, and a roller is rotatably connected to the outer side of the movable frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. A support tube is detachably fixed at the end of the transmission shaft, a movable shaft is slidably connected inside the support tube, and a cutting blade is fixed on the movable shaft, so that the motor can drive the transmission shaft and the movable shaft to rotate synchronously through a synchronous belt, so that two cutting blades are arranged on both sides of the damaged road surface area and cut the seams at the same time, which is convenient for quickly surrounding the damaged area with the seams, eliminating the need to move the engineering cart back and forth for multiple seam cutting, which is conducive to improving the efficiency of seam cutting.

[0014] 2. The second motor drives the screw rod to rotate, so that the transmission block connected with it drives the traction member to move left and right, and the traction member drives the movable shaft and the cutting blade fixed on the movable shaft to move left and right, so as to adjust the distance between the two cutting blades and meet the requirements of cutting seams of damaged areas with different widths and lengths.

[0015] 3. A protective cover is sleeved on the outer side of the cutting blade, which can prevent gravel from splashing from the top of the cutting blade. A fixed frame is fixed at the bottom of one end of the protective cover, and a movable frame is slidably sleeved on the bottom of the fixed frame. When the cutting blade cuts the road surface to different depths, the movable frame and the roller can contact the road surface under the action of their own gravity. The rear of the cutting blade shielded by the movable frame is convenient for shielding gravel dust splashing from the rear of the cutting blade, and the roller facilitates the movable cover to roll on the road surface synchronously with the movement of the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the pavement construction state of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a cutting blade storage state in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the carrier board in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the traction member, the movable shaft and the cutting piece in the utility model;

[0021] Figure 6 It is a schematic diagram of the structure of the protective cover, the movable cover and the cutting piece in the utility model.

[0022] In the figure: 100, engineering cart; 110, housing; 200, carrier plate; 210, connecting seat; 211, supporting tube; 220, screw rod; 230, motor 1; 240, motor 2; 300, movable shaft; 310, cutting blade; 400, traction member; 410, connecting rod; 420, transmission block; 500, electric push rod; 600, protective cover; 610, movable cover; 611, fixed frame; 612, movable frame; 613, roller; 700, road surface; 710, damaged area. 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 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.

[0024] Embodiment 1

[0025] See also Figure 1-5 In an embodiment of the utility model, a seam cutting device for road construction includes a carrier plate 200 fixedly connected to an engineering cart 100, two connecting seats 210 are fixed at the bottom of the carrier plate 200, a transmission shaft is rotatably connected between the two connecting seats 210, one end of the transmission shaft is detachably fixed with a support tube 211, a movable shaft 300 is slidably engaged inside the support tube 211, a cutting blade 310 is fixed to the outer sides of the movable shaft 300 and the transmission shaft, a traction member 400 for pulling the movable shaft 300 to move a position is arranged on the outer side of the movable shaft 300, a screw rod 220 for driving the traction member 400 to move a position is rotatably connected inside the carrier plate 200, a motor 230 for driving the transmission shaft to rotate is fixed to the top surface of the carrier plate 200, electric push rods 500 for driving the carrier plate 200 to move up and down are fixed at both ends of the carrier plate 200, and a protective cover 600 is sleeved on the outer side of the cutting blade 310.

[0026] Specifically, the motor 230 drives the transmission shaft and the cutting blade 310 on the movable shaft 300 to rotate, and the electric push rod 500 moves the two cutting blades 310 installed on the carrier plate 200 downward synchronously, so that the two cutting blades 310 can cut from both sides of the damaged area at the same time, which is beneficial to improving the efficiency of cutting.

[0027] like Figure 3 As shown, in this embodiment, the output end of the motor 230 and the outer side of the transmission shaft are both sleeved and fixed with a synchronous pulley, and a synchronous belt is connected between the two synchronous pulleys. A rectangular through hole for the connecting seat 210 to pass through is opened on the top surface of the engineering cart 100. The electric push rod 500 moves the carrier plate 200 downward as a whole so that the cutting blade 310 can move toward the road surface to cut the seam, and at this time the connecting seat 210 can pass through the rectangular through hole.

[0028] like Figure 4 As shown, in this embodiment, a motor 240 is fixed to the top surface of the carrier plate 200, and gears meshing with each other are fixed to the output end of the motor 240 and one end of the lead screw 220, so that the motor 240 drives the lead screw 220 to rotate forward and reversely, so that the transmission block 420 screwed together with it can drive the traction member 400 to move horizontally left and right along the carrier plate 200, so as to facilitate the adjustment of the position of the movable shaft 300.

[0029] like Figure 4 and Figure 5 As shown, in this embodiment, the traction member 400 includes a threaded tube, one end of which is screwed together with a screw rod, one end of which is fixed with a connecting rod 410 rotatably sleeved with the movable shaft 300, and one end of the threaded tube is fixed with a transmission block 420 screwed together with the screw rod 220, and the transmission block 420 is slidably connected to the carrier plate 200.

[0030] In this embodiment, when the cutting blade 310 on the movable shaft 300 is not used, the connecting rod 410 can be rotated with the movable shaft 300 to separate from the support tube 211, and then the screw rod is rotated to rotate the movable shaft 300 and the cutting blade 310 on the connecting rod 410 to the upper position, and then the screw rod 220 is rotated in the opposite direction to store the traction member 400 with the movable shaft 300 and the cutting blade 310. Refer to the instruction manual Figure 3 The transmission shaft and the support tube 211 can be detachably fixedly connected by the flange and bolts in the prior art. After the movable shaft 300 is detached, the support tube 211 can also be removed from the transmission shaft, and a single cutting blade can also be cut. During the rotation of the movable shaft 300, the connecting rod 410 does not rotate synchronously with the movable shaft 300, and the connecting rod 410 is rotatably sleeved on the movable shaft 300.

[0031] like Figure 5As shown, in this embodiment, a slide groove is opened on the outer side of the movable shaft 300, a slide bar slidably connected to the slide groove is fixed on the inner side of the support tube 211, and a casing 110 is fixed on the top of the engineering cart 100, so that the movable shaft 300 can slide on the support tube 211 and can also rotate synchronously with the rotation of the support tube 211.

[0032] Embodiment 2

[0033] On the basis of the first embodiment, in order to shield the rear of the cutting blade 310 when the cutting blade 310 cuts at different depths, it is prevented that gravels are splashed from the rear of the cutting blade 310 .

[0034] like Figure 6 As shown, in this embodiment, a movable cover 610 is fixed to one end of the protective cover 600, and the movable cover 610 includes a fixed frame 611, a movable frame 612 is slidably sleeved on the bottom of the fixed frame 611, and a roller 613 is rotatably connected to the outer side of the movable frame 612.

[0035] Specifically, a protective cover 600 is fixed on one side of the carrier plate 200, and the other protective cover 600 is fixed on the connecting rod 410. The protective cover 600 can effectively prevent gravel from splashing upward with the cutting blade 310. When the cutting blade 310 moves downward to cut, the movable frame 612 slides down along the fixed frame 611 under the action of its own gravity, so that the roller 613 rolls on the road surface. The fixed frame 611 and the movable frame 612 can block the gravel splashing from the rear of the cutting blade 310. When the cutting blade 310 moves to cut, the roller 613 at the bottom of the movable frame 612 rolls on the road surface, reducing the friction between the movable frame 612 and the road surface.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A slitting device for road construction, comprising a carrier plate fixedly connected to an engineering cart, characterized in that: Two connecting seats are fixed at the bottom of the carrier plate, a transmission shaft is rotatably connected between the two connecting seats, one end of the transmission shaft is detachably fixed with a support tube, a movable shaft is slidably clamped inside the support tube, cutting blades are fixed to the outer sides of the movable shaft and the transmission shaft, a traction member for pulling the movable shaft to move its position is arranged on the outer side of the movable shaft, a screw rod for driving the traction member to move its position is rotatably connected inside the carrier plate, a motor for driving the transmission shaft to rotate is fixed on the top surface of the carrier plate, electric push rods for driving the carrier plate to move up and down are fixed at both ends of the carrier plate, and a protective cover is provided on the outer side of the cutting blade.

2. A slitting device for road construction according to claim 1, characterized in that: The output end of the motor 1 and the outer side of the transmission shaft are both sleeved and fixed with a synchronous pulley, and a synchronous belt is connected between the two synchronous pulleys. A rectangular through hole is opened on the top surface of the engineering cart for the connection seat to pass through.

3. A slitting device for road construction according to claim 1, characterized in that: The top surface of the carrier plate is fixed with a second motor, and the output end of the second motor and one end of the lead screw are both fixed with gears meshing with each other.

4. A slitting device for road construction according to claim 1, characterized in that: The traction member includes a threaded tube, one end of which is screwed and connected to a screw rod, one end of which is fixed with a connecting rod rotatably sleeved with a movable shaft, one end of which is fixed with a transmission block screwed and connected to the screw rod, and the transmission block is slidably connected to a carrier plate.

5. A slitting device for road construction according to claim 4, characterized in that: A slide groove is provided on the outer side of the movable shaft, a slide bar slidably connected to the slide groove is fixed on the inner side of the support tube, and a casing is fixed on the top of the engineering cart.

6. A slitting device for road construction according to claim 1, characterized in that: A movable cover is fixed at one end of the protective cover. The movable cover comprises a fixed frame. A movable frame is slidably sleeved on the bottom of the fixed frame. A roller is rotatably connected to the outer side of the movable frame.

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