Cement adding device in asphalt pavement in-situ cold regeneration equipment

Abstract

The utility model relates to the technical field of cement adding, and provides a cement adding device in asphalt pavement in-situ cold regeneration equipment, which comprises a bottom plate, the fixing frame is rotationally connected to the upper end of the other side of the bottom plate; the discharging groove is formed in the upper end of the other side in the fixing frame; the hydraulic cylinder is hinged to one side of the top end of the bottom plate; the stirring roller is rotationally connected to the upper end of the inner wall of the fixing frame; the servo motor is fixedly connected to the upper end of one side of the fixing frame; the feeding hopper is fixedly connected to the other side of the top end of the fixing frame; a cam is in contact with a fixed block through work of a driving motor, and a sliding plate can slide up and down to drive and impact the surface of the stirring roller by utilizing elastic force of a reset spring, so that vibration impact when the stirring roller obliquely discharges materials downwards is realized, cement materials are prevented from remaining on the inner wall of the stirring roller, and cement discharging thoroughness is improved; the labor intensity caused by manual knocking of workers is reduced, and the material utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cement addition, in particular to a cement adding device in asphalt pavement in-situ cold regeneration equipment. Background Art

[0002] Asphalt pavement in-situ cold regeneration equipment is a type of mechanical equipment mainly used for milling asphalt concrete pavements and regenerating old asphalt pavements after adding asphalt, water and other materials. It belongs to the category of road maintenance and repair. Cement as a stabilizer can significantly improve the compressive strength, stiffness and water resistance of pavement materials. Therefore, when regenerating asphalt pavement, it is necessary to use a corresponding adding device to pour cement onto the construction road surface.

[0003] After searching, the existing patent (Announcement No.: CN221136397U) discloses a cement adding device in an in-situ cold regeneration equipment for asphalt pavement, including: a stirring mechanism, which is arranged in a rectangular shape, and a rectangular groove is provided on the surface of the stirring mechanism. The stirring mechanism is used to pour cement, sand, gravel and water into the feed and discharge bin from the feed port, and the cement, sand, gravel and water enter the stirring drum through the internal cavity of the rotating shaft. The driving motor is started, and the driving motor drives the second rotating shaft to rotate on the surface of the first rotating support frame. The second rotating shaft drives the stirring drum to rotate, and the rotating shaft at the other end of the stirring drum rotates on the surface of the second rotating support frame. The stirring plate inside the stirring drum stirs and mixes the cement, sand, gravel and water.

[0004] However, in the above scheme, during the discharge process, some cement materials will remain on the inner wall of the mixing drum, resulting in some cement materials being unable to be fully discharged, thereby reducing the utilization rate of the cement materials. Manual knocking and discharging will increase the labor intensity of the staff and reduce the discharge rate of the cement materials.

[0005] In view of this, the utility model proposes a cement adding device in an in-situ cold regeneration device for asphalt pavement. Utility Model Content

[0006] The utility model provides a cement adding device in an in-situ cold regeneration device for an asphalt pavement, which solves the problem of incomplete material discharge in the related art.

[0007] The technical solution of the utility model is as follows: a cement adding device in an in-situ cold regeneration equipment for asphalt pavement, comprising a base plate; a controller fixedly connected to one side of the top of the base plate; a fixed frame rotatably connected to the upper end of the other side of the base plate; a discharge trough opened at the upper end of the other side inside the fixed frame; a hydraulic cylinder hinged on one side of the top of the base plate, the output end of the hydraulic cylinder being hinged to one side of the bottom end of the fixed frame through a piston rod; a stirring drum rotatably connected to the upper end of the inner wall of the fixed frame, one side of the stirring drum being rotatably connected to one side of the discharge trough, the inner wall of the stirring drum being fixedly connected with a convex strip; a vibration anti-blocking component assembled at the lower end of the fixed frame, the vibration anti-blocking component being used for vibrating and discharging the stirring drum; a servo motor fixedly connected to the upper end of one side of the fixed frame, the output end of the servo motor being fixedly connected to one side of the stirring drum through a coupling; a feed hopper fixedly connected to the other side of the top of the fixed frame, the bottom end of the feed hopper being connected to the interior of the discharge trough.

[0008] The vibration anti-blocking component includes: a fixing groove provided at the bottom end of the fixing frame; a driving motor fixedly connected to the inner wall of the fixing groove, the output end of the driving motor being fixedly connected to a cam through a coupling; sliding rods symmetrically fixedly connected to both sides of the inner bottom wall of the fixing frame; a slider movably connected to the surface of the sliding rod; a return spring wound around the surface of the sliding rod, the two ends of the return spring being fixedly connected to the inner top wall of the sliding rod and the top end of the slider respectively; a sliding plate fixedly connected between the two sliders, the top end of the sliding plate being fixedly connected to a rubber block; and a fixed block fixedly connected to the middle position of the bottom end of the sliding plate.

[0009] Preferably, the top of the rubber block is arc-shaped, and the rubber blocks are distributed at equal intervals on the top of the sliding plate.

[0010] Preferably, the fixing block is arc-shaped, and the fixing block and the cam are located in the same vertical plane.

[0011] Preferably, a sliding structure is formed between the slider and the surface of the sliding rod, and one side of the slider and two sides of the sliding plate are welded into an integrated structure.

[0012] Preferably, the other side of the fixing frame is fixedly connected to a supporting frame, the lower end of one side of the inner wall of the supporting frame is rotatably connected to a guide plate, the upper end of one side of the guide plate is fixedly connected to a positioning block, and the upper end of one side of the fixing frame is rotatably connected to a rotating plate.

[0013] Preferably, the inclination angle of the bottom end of the support frame to the horizontal direction is thirty degrees, and the shape of the support frame is L-shaped.

[0014] Preferably, a snap-fit structure is formed between the rotating plate and the inner wall of the positioning block, and the rotating plate and the positioning block are symmetrically distributed about the vertical center axis of the guide plate.

[0015] Preferably, the distance between the positioning blocks is equal to the spacing between the lower ends of the support frames, and the cross-sectional area of the guide plate is larger than the cross-sectional area of the discharge chute.

[0016] Preferably, an auxiliary ring groove is formed in an annular manner on the upper end of the inner wall of the fixing frame, and an auxiliary block is fixedly connected at an equal angle to one side of the stirring drum and is slidably matched with the inside of the auxiliary ring groove.

[0017] Preferably, the shape of the convex strips is an isosceles trapezoid, and the convex strips are distributed at equal angles on the inner wall of the stirring drum.

[0018] The beneficial effects of the utility model are:

[0019] 1. The vibration anti-blocking assembly provided in the utility model can start the driving motor to drive the cam to rotate when the mixing drum is tilted to discharge, and periodically rotate and contact with the fixed block. The elastic force of the return spring is used to make the sliding plate slide up and down to drive the rubber block to periodically hit the surface of the mixing drum, thereby realizing the vibration discharge of the mixing drum. In combination with the rotating mixing drum, it is convenient to more comprehensively vibrate and discharge the inner wall of the mixing drum, reduce the residue of cement material on the inner wall of the mixing drum, avoid the excessive labor intensity caused by the traditional workers knocking and discharging, and improve the discharge rate and utilization rate of cement material.

[0020] 2. In the present invention, the support frame, guide plate, rotating plate and discharge chute are provided. When the cement material is transported or stirred by the mixing drum to prevent solidification, the guide plate is rotated to completely block the discharge chute, and then the rotating plate is rotated to clamp it into the inside of the positioning block to ensure that the guide plate is firmly and vertically closed, and the cement material is prevented from accidentally falling out of the discharge chute due to the bumps inside. When discharging is required, the rotating plate can be rotated, and then the guide plate can be deflected downward, and the positioning block can be clamped to one side of the support frame to achieve the locking and fixing of the guide plate and the lower end of the inner wall of the support frame. Then, the support frame and the guide plate can cooperate to facilitate the guidance and discharge of the cement material discharged from the discharge chute, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Figure 1 This is a front view structural diagram of the utility model;

[0023] Figure 2 This is a schematic structural diagram of the utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0025] Figure 4 This is a schematic diagram of the explosion structure of the mixing drum of the present invention;

[0026] Figure 5 This is a schematic diagram of the exploded and enlarged structure of the guide plate of the present invention.

[0027] In the figure: 1. Fixed frame; 2. Servo motor; 3. Controller; 4. Bottom plate; 5. Hydraulic cylinder; 6. Vibration anti-blocking assembly; 601. Fixed groove; 602. Sliding plate; 603. Rubber block; 604. Slider; 605. Cam; 606. Fixed block; 607. Drive motor; 608. Return spring; 609. Slide rod; 7. Mixing drum; 8. Support frame; 9. Feed hopper; 10. Guide plate; 11. Raised strip; 12. Auxiliary block; 13. Auxiliary ring groove; 14. Rotating plate; 15. Discharge chute; 16. Positioning block. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] The preferred embodiment of the cement adding device in the asphalt pavement in-situ cold regeneration equipment provided by the utility model is as follows Figures 1 to 5 The figure shows: a cement adding device in an in-situ cold regeneration equipment for asphalt pavement, comprising a base plate 4; a controller 3 fixedly connected to one side of the top of the base plate 4; a fixed frame 1 rotatably connected to the upper end of the other side of the base plate 4; a discharge trough 15 opened at the upper end of the other side inside the fixed frame 1; a hydraulic cylinder 5 hinged to one side of the top of the base plate 4, the output end of the hydraulic cylinder 5 is hinged to one side of the bottom end of the fixed frame 1 through a piston rod; a stirring drum 7 rotatably connected to the upper end of the inner wall of the fixed frame 1, one side of the stirring drum 7 is rotatably connected to one side of the discharge trough 15, and a convex strip 11 is fixedly connected to the inner wall of the stirring drum 7; a vibration anti-blocking component 6 assembled at the lower end of the fixed frame 1, the vibration anti-blocking component 6 is used for vibrating and discharging the stirring drum 7; a servo motor 2 fixedly connected to the upper end of one side of the fixed frame 1, the output end of the servo motor 2 is fixedly connected to one side of the stirring drum 7 through a coupling; a feed hopper 9 fixedly connected to the other side of the top of the fixed frame 1, and the bottom end of the feed hopper 9 is connected to the inside of the discharge trough 15.

[0031] The vibration anti-blocking component 6 includes: a fixing groove 601 opened at the bottom end of the fixing frame 1; a driving motor 607 fixedly connected to the inner wall of the fixing groove 601, and the output end of the driving motor 607 is fixedly connected to the cam 605 through a coupling; sliding rods 609 symmetrically fixedly connected to both sides of the inner bottom wall of the fixing frame 1; a slider 604 movably connected to the surface of the sliding rod 609; a return spring 608 wound on the surface of the sliding rod 609, and the two ends of the return spring 608 are respectively fixedly connected to the inner top wall of the sliding rod 609 and the top of the slider 604; a sliding plate 602 fixedly connected between the two sliders 604, and the top of the sliding plate 602 is fixedly connected to a rubber block 603; and a fixed block 606 fixedly connected to the middle position of the bottom end of the sliding plate 602.

[0032] It should be noted that the cement adding device in the existing asphalt pavement cold in-situ regeneration equipment still has certain shortcomings in actual use. During the discharge process, some cement materials will remain on the inner wall of the mixing drum 7, resulting in some cement materials being unable to be fully discharged, thereby reducing the utilization rate of the cement materials. Manual knocking and discharging will increase the labor intensity of the staff and reduce the discharge rate of the cement materials.

[0033] In this embodiment, when the mixing drum 7 is tilted to discharge, the drive motor 607 can be started to drive the cam 605 to rotate, and periodically rotate and contact with the fixed block 606, so that the sliding plate 602 slides and drives the slider 604 to slide on the surface of the slide rod 609 to compress the reset spring 608. At the same time, the sliding plate 602 slides up and drives the rubber block 603 to rise and hit the surface of the mixing drum 7. After the cam 605 rotates away, the elastic force of the reset spring 608 is used to make the slider 604 slide down and drive the sliding plate 602 to return to its original position, and then the rubber block 603 periodically hits the surface of the mixing drum 7 to achieve vibration discharge of the mixing drum 7, reduce the residue of cement material on the inner wall of the mixing drum 7, and improve the discharge rate and utilization rate of the cement material.

[0034] In a further preferred embodiment of the present invention, the top of the rubber block 603 is arc-shaped, and the rubber blocks 603 are distributed at equal intervals on the top of the sliding plate 602 .

[0035] In this embodiment, the arc-shaped rubber block 603 is used to facilitate the knocking and discharge of materials on the surface of the mixing drum 7 .

[0036] In a further preferred embodiment of the present invention, the fixing block 606 is arc-shaped, and the fixing block 606 and the cam 605 are located in the same vertical plane.

[0037] In this embodiment, an arc-shaped fixing block 606 is used to facilitate rotational contact with the cam 605, so that the sliding plate 602 slides up and down.

[0038] In a further preferred embodiment of the present invention, a sliding structure is formed between the slider 604 and the surface of the slide bar 609 , and one side of the slider 604 and both sides of the slide plate 602 are welded into an integrated structure.

[0039] In this embodiment, the sliding of the slider 604 and the sliding rod 609 is utilized to improve the smoothness of the upward and downward sliding of the sliding plate 602 .

[0040] Example 2

[0041] On the basis of Example 1, the preferred embodiment of the cement adding device in the asphalt pavement cold regeneration equipment provided by the present invention is as follows: Figures 1 to 5 As shown: the other side of the fixing frame 1 is fixedly connected to the supporting frame 8, the lower end of the inner wall of the supporting frame 8 is rotatably connected to the guide plate 10, the upper end of one side of the guide plate 10 is fixedly connected to the positioning block 16, and the upper end of one side of the fixing frame 1 is rotatably connected to the rotating plate 14.

[0042] In this embodiment, when transporting or stirring the anti-solidification cement material by the mixing drum 7, the guide plate 10 is rotated to completely cover the discharge trough 15, and then the rotating plate 14 is rotated to clamp it into the positioning block 16 to ensure that the guide plate 10 is firmly and vertically closed to prevent the cement material from accidentally falling out of the discharge trough 15 due to the bumps inside. When discharge is required, the rotating plate 14 can be rotated, and the guide plate 10 can be deflected downward, and the positioning block 16 can be clamped to the side of the support frame 8. Then, the support frame 8 and the guide plate 10 can cooperate to facilitate the guidance and discharge of the cement material discharged from the discharge trough 15.

[0043] In a further preferred embodiment of the present invention, the bottom end of the support frame 8 is inclined at an angle of thirty degrees to the horizontal direction, and the shape of the support frame 8 is L-shaped.

[0044] In this embodiment, the inclined and L-shaped support frame 8 is used to facilitate the guidance and discharge of the cement material, and can support and engage the guide plate 10.

[0045] In a further preferred embodiment of the present invention, a snap-fit structure is formed between the rotating plate 14 and the inner wall of the positioning block 16 , and the rotating plate 14 and the positioning block 16 are symmetrically distributed about the vertical center axis of the guide plate 10 .

[0046] In this embodiment, the engagement between the rotating plate 14 and the positioning block 16 is utilized to facilitate the limiting and fixing of the guide plate 10 after it is vertically closed.

[0047] In a further preferred embodiment of the present invention, the distance between the positioning blocks 16 is equal to the spacing between the lower ends of the support frames 8 , and the cross-sectional area of the guide plate 10 is larger than the cross-sectional area of the discharge chute 15 .

[0048] In this embodiment, positioning blocks 16 with appropriate spacing are used to facilitate the engagement and fixation between the guide plate 10 and the lower end of the inner wall of the support frame 8 after the guide plate 10 is deflected and opened, thereby facilitating the guided discharge of the cement material.

[0049] In a further preferred embodiment of the present invention, an auxiliary annular groove 13 is formed in an annular manner on the upper end of the inner wall of the fixing frame 1 , and an auxiliary block 12 is fixedly connected to one side of the stirring drum 7 at an equal angle and slides in cooperation with the inside of the auxiliary annular groove 13 .

[0050] In this embodiment, the sliding of the auxiliary block 12 in the auxiliary ring groove 13 is utilized to improve the stability of the stirring drum 7 during rotation.

[0051] In a further preferred embodiment of the present invention, the shape of the ridges 11 is an isosceles trapezoid, and the ridges 11 are distributed on the inner wall of the mixing drum 7 at equal angles.

[0052] In this embodiment, the ridges 11 distributed at equal angles are used to facilitate stirring of the cement material inside the mixing drum 7 to prevent it from solidifying.

[0053] The working principle of this utility model is as follows: first, the guide plate 10 is rotated to completely cover the discharge chute 15, and then the rotating plate 14 is rotated to clamp it into the positioning block 16 to ensure that the guide plate 10 is firmly and vertically closed, and then the hydraulic cylinder 5 is started to deflect the fixed frame 1, thereby causing the servo motor 2 to move downward. Then, the cement material is added through the feed hopper 9, and then the discharge chute 15 is used to guide it into the mixing drum 7. Then, the servo motor 2 can be started to drive the mixing drum 7 to rotate, and the ridges 11 can be used to prevent the cement material from solidifying. At the same time, the guide plate 10 can be used to prevent the cement material from accidentally falling out of the bumps inside the discharge chute 15.

[0054] At the same time, when discharging is required, the rotating plate 14 can be rotated, and the guide plate 10 can be deflected downward, and the positioning block 16 can be clamped to one side of the support frame 8 to achieve the clamping and fixing of the guide plate 10 and the lower end of the inner wall of the support frame 8. Then the hydraulic cylinder 5 can be started again to tilt one side of the support frame 8 downward. After that, the material inside the mixing drum 7 is discharged from the discharge chute 15 due to the tilt. At this time, the cooperation between the support frame 8 and the guide plate 10 can facilitate the guidance and discharge of the cement material discharged from the discharge chute 15.

[0055] And during the discharging process, the driving motor 607 can be started to drive the cam 605 to rotate, and periodically rotate and contact with the fixed block 606, so that the sliding plate 602 slides and drives the slider 604 to slide on the surface of the slide rod 609 to compress the return spring 608. At the same time, the sliding plate 602 slides up and drives the rubber block 603 to rise and hit the surface of the mixing drum 7. After the cam 605 rotates away, the elastic force of the return spring 608 is used to make the slider 604 slide down and drive the sliding plate 602 to return to its original position, and then the rubber block 603 periodically hits the surface of the mixing drum 7 to achieve vibration discharging of the mixing drum 7, and cooperates with the rotating mixing drum 7 to facilitate more comprehensive vibration discharging of the inner wall of the mixing drum 7, reduce the residue of cement material on the inner wall of the mixing drum 7, and improve the discharging rate and utilization rate of the cement material.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cement adding device in an in-situ cold regeneration equipment for asphalt pavement, characterized in that: include: bottom plate (4); A controller (3) fixedly connected to one side of the top end of the base plate (4); Rotating a fixing frame (1) connected to the upper end of the other side of the base plate (4); A discharge trough (15) is provided at the upper end of the other side of the interior of the fixing frame (1); A hydraulic cylinder (5) is hinged to one side of the top end of the base plate (4), and an output end of the hydraulic cylinder (5) is hinged to one side of the bottom end of the fixing frame (1) via a piston rod; A stirring drum (7) is rotatably connected to the upper end of the inner wall of the fixed frame (1), one side of the stirring drum (7) is rotatably connected to one side of the discharge trough (15), and a convex strip (11) is fixedly connected to the inner wall of the stirring drum (7); a vibration anti-blocking assembly (6) mounted on the lower end of the fixed frame (1), the vibration anti-blocking assembly (6) being used for vibrating and discharging the mixing drum (7); A servo motor (2) is fixedly connected to the upper end of one side of the fixed frame (1), and an output end of the servo motor (2) is fixedly connected to one side of the stirring drum (7) via a coupling; A feed hopper (9) is fixedly connected to the other side of the top of the fixed frame (1), and the bottom end of the feed hopper (9) is connected to the inside of the discharge trough (15); The vibration anti-blocking component (6) comprises: A fixing groove (601) is provided at the bottom end of the fixing frame (1); A driving motor (607) is fixedly connected to the inner wall of the fixing groove (601), and an output end of the driving motor (607) is fixedly connected to a cam (605) via a coupling; Sliding rods (609) symmetrically fixedly connected to both sides of the inner bottom wall of the fixing frame (1); a slider (604) movably connected to the surface of the slide bar (609); A return spring (608) is wound around the surface of the slide bar (609), and the two ends of the return spring (608) are fixedly connected to the inner top wall of the slide bar (609) and the top end of the slider (604) respectively; a sliding plate (602) fixedly connected between the two sliding blocks (604), wherein a rubber block (603) is fixedly connected to the top end of the sliding plate (602); A fixing block (606) is fixedly connected to the middle position of the bottom end of the sliding plate (602).

2. The cement adding device in the asphalt pavement cold regeneration equipment according to claim 1 is characterized in that: The top of the rubber block (603) is arc-shaped, and the rubber blocks (603) are distributed at equal intervals on the top of the sliding plate (602).

3. The cement adding device in the asphalt pavement cold regeneration equipment according to claim 1, characterized in that: The fixing block (606) is in an arc shape, and the fixing block (606) and the cam (605) are located in the same vertical plane.

4. The cement adding device in the asphalt pavement cold regeneration equipment according to claim 1, characterized in that: A sliding structure is formed between the slider (604) and the surface of the slide rod (609), and one side of the slider (604) and both sides of the sliding plate (602) are welded into an integrated structure.

5. The cement adding device in the asphalt pavement in-situ cold regeneration equipment according to claim 1, characterized in that: The other side of the fixing frame (1) is fixedly connected to a support frame (8), the lower end of one side of the inner wall of the support frame (8) is rotatably connected to a guide plate (10), the upper end of one side of the guide plate (10) is fixedly connected to a positioning block (16), and the upper end of one side of the fixing frame (1) is rotatably connected to a rotating plate (14).

6. The cement adding device in the asphalt pavement cold in-situ regeneration equipment according to claim 5, characterized in that: The bottom end of the support frame (8) has an inclination angle of thirty degrees with respect to the horizontal direction, and the shape of the support frame (8) is L-shaped.

7. The cement adding device in the asphalt pavement cold in-situ regeneration equipment according to claim 5, characterized in that: A snap-fit structure is formed between the rotating plate (14) and the inner wall of the positioning block (16), and the rotating plate (14) and the positioning block (16) are symmetrically distributed about the vertical center axis of the guide plate (10).

8. The cement adding device in the asphalt pavement cold in-situ regeneration equipment according to claim 5, characterized in that: The distance between the positioning blocks (16) is equal to the spacing between the lower ends of the support frames (8), and the cross-sectional area of the guide plate (10) is larger than the cross-sectional area of the discharge trough (15).

9. The cement adding device in the asphalt pavement cold in-situ regeneration equipment according to claim 1, characterized in that: An auxiliary ring groove (13) is formed in an annular shape on the upper end of the inner wall of the fixing frame (1), and an auxiliary block (12) is fixedly connected at an equal angle to one side of the stirring drum (7) and is slidably matched with the inside of the auxiliary ring groove (13).

10. The cement adding device in the in-situ cold regeneration equipment of asphalt pavement according to claim 1, characterized in that: The shape of the convex strips (11) is an isosceles trapezoid, and the convex strips (11) are distributed at equal angles on the inner wall of the stirring drum (7).

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