Stripping device for recycled asphalt mixture
By using rubber rollers with adjustable gaps in the asphalt pavement material peeling device, the problem that the tooth roller crusher cannot effectively adjust the degree of sand and gravel crushing is solved, and efficient asphalt peeling and gravel protection is achieved, which is suitable for the regeneration of various materials. use.
Patent Information
- Application Number
- CN202421215548.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the prior art, when the tooth roller crusher crushes asphalt pavement materials, it is impossible to effectively adjust the degree of crushing of sand and gravel, resulting in a large amount of sand and gravel being crushed, and the spacing between the tooth rollers is unadjustable or inconvenient to adjust.
A stripping device for recycled asphalt mixture was designed, and a rubber roller was used instead of steel rollers. By adjusting the gap of the rubber rollers, moderate extrusion and rubbing of waste asphalt pavement materials were achieved to avoid sand and gravel being crushed, and suitable for A peeling process of various materials.
It effectively avoids excessive crushing of sand and gravel, improves the peeling efficiency of asphalt, is suitable for the treatment of a variety of waste asphalt pavement materials, and improves the blocking rate of recycled use.
Smart Images
Figure CN222525100U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of roadbed engineering equipment, in particular to a stripping device for regenerated asphalt mixture. Background Art
[0002] Under the combined effects of traffic loads and natural factors, asphalt pavement becomes thinner and older after a certain number of years of use, and various defects such as cracks, subsidence, rutting, and bumps will gradually expand, seriously affecting driving. Therefore, roads that have been used for a long time have entered the stage of large-scale maintenance and repair, and a large amount of waste asphalt pavement materials have been generated.
[0003] The recycling of waste asphalt pavement materials can save a large amount of raw materials such as asphalt, sand and gravel, save project investment, and is conducive to waste treatment and environmental protection. It has significant economic, social and environmental benefits.
[0004] Since it is of great significance to make good use of these waste asphalt pavement materials, the stripping of old asphalt pavement materials is a very important step in mixing new and old asphalt mixtures to form recycled asphalt mixtures. The toothed roller crusher currently used can effectively crush asphalt pavement materials while minimizing over-crushing and maintaining a high block rate, which is conducive to subsequent recycling; however, a large amount of sand and gravel are still crushed, and the toothed roller spacing cannot be adjusted or is inconvenient to adjust. Utility Model Content
[0005] To this end, the utility model provides a stripping device for recycled asphalt mixture to solve one or more of the above-mentioned problems.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A stripping device for recycled asphalt mixture comprises a shell, a fixed rubber roller, a movable rubber roller, an adjustment mechanism, a transmission mechanism and a reduction motor; a feed port is provided on the top of the shell; two rubber rollers are arranged in parallel and at intervals in the horizontal direction in the shell, and the gap between the two rubber rollers is below the feed port, wherein the end of the fixed rubber roller is fixed to the side wall plate of the shell through a bearing and a bearing seat, and the bearing seat of the movable rubber roller is slidably arranged in a horizontal strip window on the side wall plate of the shell; the adjustment mechanism is connected between the shell and the bearing seat of the movable rubber roller to adjust the lateral position of the movable rubber roller; the transmission mechanism is arranged on the outer side of the shell; the reduction motor is fixed relatively to the shell, and the reduction motor is connected to the two rubber rollers through the transmission mechanism.
[0008] Furthermore, a hopper is provided on the top of the shell, a discharge port is provided on the lower side of the shell, and a discharge dustpan is provided at the discharge port.
[0009] Furthermore, the adjustment mechanism includes a screw rod, a rotating wheel and a handle, the screw rod is arranged along the length direction of the transverse strip window and is arranged at the rear part of the shell, the front end of the screw rod is rotatably connected to the bearing seat of the movable rubber roller in the transverse strip window, the middle section of the screw rod is spirally connected to the rear frame of the transverse strip window, the rear end of the screw rod is located on the outer side of the rear side wall of the shell, the rotating wheel is coaxially installed on the rear end of the screw rod, and the handle is installed on the edge of the rotating wheel and is parallel to the axis of the screw rod.
[0010] Furthermore, the screw rod is provided with scale lines showing the gap between the two rubber rollers.
[0011] Furthermore, two adjusting mechanisms are provided, and the two adjusting mechanisms are symmetrically arranged one on the left and one on the right and act on the bearing seats at both ends of the movable rubber roller respectively.
[0012] Further, the transmission mechanism includes a first rotating shaft, a first pulley, a first gear, a second pulley, a second rotating shaft, a second gear and a third pulley, the first rotating shaft and the second rotating shaft are rotatably arranged on the side of the shell, the first rotating shaft is parallel to the second rotating shaft and is arranged at an interval, the first pulley, the first gear and the second pulley are all fixed on the first rotating shaft, the second gear and the third pulley are all fixed on the second rotating shaft, the first gear and the second gear are meshed, the first pulley is connected to the output pulley of the reduction motor by a belt, the second pulley is connected to the fixed input pulley at the end of the fixed rubber roller by a belt, and the third pulley is connected to the movable input pulley at the end of the movable rubber roller by a belt.
[0013] The utility model has the following advantages:
[0014] Rubber rollers are used instead of steel rollers (such as toothed rollers in the prior art). Since rubber rollers are softer than steel rollers, but have a certain hardness and elasticity, the two rubber rollers have both a moderate squeezing effect and a kneading effect on the waste asphalt pavement materials passing through their gaps (for pavement materials with relatively small gaps, when passing through the gaps, the edges of the rubber rollers will elastically squeeze in, and the contact knots between the rubber roller surface and the surface of the material will be larger, forming a similar kneading effect). This can prevent sand and gravel from being crushed and can strip the asphalt. At the same time, by adjusting the gap between the two rubber rollers, it can be applied to the stripping process of various waste asphalt pavement materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0017] Figure 1 A schematic diagram of the structure of a stripping device for regenerated asphalt mixture provided in an embodiment of the utility model;
[0018] Figure 2 for Figure 1 An enlarged view of the adjustment mechanism shown in;
[0019] Figure 3 A schematic structural diagram of another view of a stripping device for recycled asphalt mixture provided by an embodiment of the utility model;
[0020] Figure 4 for Figure 3 The schematic diagram of the structure shown is after removing the safety cover;
[0021] Figure 5 for Figure 4 An enlarged view of the transmission mechanism in the structure shown;
[0022] Figure 6 A cross-sectional view of a stripping device for regenerated asphalt mixture provided in an embodiment of the utility model.
[0023] In the figure: 1-shell, 11-hopper, 12-discharging dustpan, 13-support leg, 14-transverse strip window, 2-fixed rubber roller, 21-fixed input pulley, 3-movable rubber roller, 31-movable input pulley, 32-movable bearing seat, 4-adjusting mechanism, 41-screw, 42-rotating wheel, 43-handle, 44-scale line, 5-transmission mechanism, 51-first pulley, 52-first gear, 53-second pulley, 54-second gear, 55-third pulley, 56-tensioning wheel, 57-safety cover, 6-reduction motor, 61-output pulley. DETAILED DESCRIPTION
[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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 creative work are within the scope of protection of the present invention.
[0025] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.
[0026] like Figure 1-6 As shown, this embodiment provides a stripping device for recycled asphalt mixture, including a shell 1, a fixed rubber roller 2, a movable rubber roller 3, an adjustment mechanism 4, a transmission mechanism 5 and a reduction motor 6.
[0027] The shell 1 is a square structure container, and can also be other shapes. A feed port is provided on the top of the shell 1, and the feed port is generally designed in the center of the top; a hopper 11 is provided above the feed port, and a conveyor belt or an auger conveys the waste asphalt pavement material to the hopper 11, and the waste asphalt pavement material enters the shell 1 from the hopper 11 through the feed port. The bottom of the shell 1 is closed and can be set as a plane or an inclined surface; in the present application, the bottom of the shell 1 has a flat bottom plate, and an inclined inclined plate is provided inside the shell 1 to guide the stripped mixed material (referring to sand, gravel, asphalt, etc.) out of the shell 1. A discharge port is provided on the lower side of the shell 1, and the lower edge of the discharge port is flush with the lower end edge of the inclined plate; a discharge dustpan 12 is provided at the discharge port to guide the stripped mixed material to another set of conveyor belts or auger. Support legs 13 are provided around the bottom of the shell 1 to separate the shell 1 from the ground or the support surface so as to install the reduction motor 6. Two pairs of bearing seats for installing rubber rollers are symmetrically arranged on the left and right sides of the housing 1, wherein the front pair of bearing seats is fixed on the housing 1, and the rear pair is movable forward and backward. In order to ensure that the rear pair of bearing seats can move forward and backward, a transverse strip window 14 is arranged at the rear position of the left and right sides of the housing 1, and the movable bearing seat is slidably arranged in the transverse strip window 14; a slider is arranged at the top and bottom of the bearing seat, and a slide groove in the front and rear direction is arranged at the top and bottom of the transverse strip window 14 (considering the installation problem, the housing 1 needs to be divided into two parts, the dividing line between the upper and lower parts passes through the transverse strip window 14, and a flange structure is arranged at the dividing line, and the upper and lower parts are fixed by bolts to form a complete housing 1). It should be pointed out that other structures can also be used to replace the transverse strip window 14, such as guide rails or slide rails; the so-called "transverse" does not refer to the "left and right direction", but to the "direction perpendicular to the vertical direction". The "transverse" in this embodiment refers to the "front and rear direction".
[0028] The fixed rubber roller 2 and the movable rubber roller 3 have the same structure, and the center of the two is a steel core shaft, and the outer periphery of the core shaft is a roller body made of rubber material. The two ends of the core shaft are connected to the corresponding bearing seats through bearings, so as to ensure that the rubber roller can rotate; wherein, the end of the fixed rubber roller 2 is connected to the bearing seat fixed on the side wall plate of the shell 1 through a bearing, and the end of the movable rubber roller 3 is connected to the bearing seat slidably set in the transverse strip window 14 through a bearing. The two rubber rollers are parallel and spaced in the shell 1 in the horizontal direction, wherein the fixed rubber roller 2 is in front and the movable rubber roller 3 is in the back; optionally, the fixed rubber roller 2 is in the back and the movable rubber roller 3 is in the front. The gap between the two rubber rollers is below the feed port to ensure that the waste asphalt pavement material coming from the hopper 11 and the material reduction port falls between the two rollers, and when the waste asphalt pavement material passes through the gap, it is squeezed and kneaded by the rollers, thereby completing the stripping of the material.
[0029] The adjusting mechanism 4 is connected between the housing 1 and the bearing seat of the movable rubber roller 3 to adjust the lateral position of the movable rubber roller 3. There are many such adjusting mechanisms 4, as long as they can adjust the distance between the two rollers. In this embodiment, the adjusting mechanism 4 includes a screw rod 41, a rotating wheel 42 and a handle 43. The screw rod 41 is arranged along the length direction of the transverse strip window 14 and is arranged at the rear of the housing 1. The front end of the screw rod 41 is rotatably connected to the bearing seat of the movable rubber roller 3 in the transverse strip window 14. The middle section of the screw rod 41 is spirally connected to the rear frame of the transverse strip window 14. The rear end of the screw rod 41 is located outside the rear side wall of the housing 1. The rotating wheel 42 is coaxially mounted on the rear end of the screw rod 41. The handle 43 is mounted on the edge of the rotating wheel 42 and is parallel to the axis of the screw rod 41. When in use, hold the two handles 43 with both hands respectively, and rotate the rotating wheel 42 synchronously. The screw rod 41 will drive the bearing seat to move along the transverse strip window 14 (i.e., move forward and backward), thereby adjusting the distance between the two rollers. There are two adjustment mechanisms 4, which are symmetrically arranged on the left and the right and act on the bearing seats at both ends of the movable rubber roller 3. A scale line 44 can be set to directly or indirectly reflect the size of the gap between the two rubber rollers, for example, a scale line 44 is set between the fixed bearing seat and the movable bearing seat 32; in this embodiment, a scale line 44 showing the gap between the two rubber rollers is set on the screw rod 41, and as the screw rod 41 moves forward, the scale value becomes smaller and smaller, and when the two rollers are against each other (the gap is zero), the scale line 44 on the screw rod 41 is exactly the scale zero value.
[0030] The transmission mechanism 5 is arranged on the outer side of the shell 1, and is used to make the fixed rubber roller 2 and the movable rubber roller 3 turn in opposite directions, but the tangential speeds of the roller edge of the fixed rubber roller 2 close to the gap and the roller edge of the movable rubber roller 3 close to the gap are both downward, so as to make the waste asphalt pavement material pass downward through the gap. The transmission mechanism 5 is varied, as long as it can achieve the above purpose. In this embodiment, the transmission mechanism 5 includes a first rotating shaft, a first pulley 51, a first gear 52, a second pulley 53, a second rotating shaft, a second gear 54 and a third pulley 55. The first rotating shaft and the second rotating shaft are rotatably arranged on the side of the shell 1, the first rotating shaft is parallel to the second rotating shaft and is spaced apart, the first pulley 51, the first gear 52 and the second pulley 53 are all fixed on the first rotating shaft, the second gear 54 and the third pulley 55 are all fixed on the second rotating shaft, the first gear 52 and the second gear 54 are meshed, and the first pulley 51 is connected to the reduction motor The output pulley 61 of 6 is connected by a belt, the second pulley 53 is connected to the fixed input pulley 21 at the end of the fixed rubber roller 2 by a belt, and the third pulley 55 is connected to the mobile input pulley 31 at the end of the mobile rubber roller 3 by a belt; a tensioning pulley 56 (existing) is arranged between the third pulley 55 and the mobile input pulley 31 to ensure that after the mobile rubber roller 3 moves laterally, the belt between the third pulley 55 and the mobile input pulley 31 is still in a tensioned state; a detachable safety cover 57 is arranged outside the transmission mechanism 5 to avoid safety accidents.
[0031] The reduction motor 6 is relatively fixed to the housing 1. In this embodiment, the reduction motor 6 is fixed below the housing 1.
[0032] Rubber rollers are used instead of steel rollers (such as toothed rollers in the prior art). Since rubber rollers are softer than steel rollers, but have a certain hardness and elasticity, the two rubber rollers have both a moderate squeezing effect and a kneading effect on the waste asphalt pavement materials passing through their gaps (for pavement materials with relatively small gaps, when passing through the gaps, the edges of the rubber rollers will elastically squeeze in, and the contact knots between the rubber roller surface and the surface of the material will be larger, forming a similar kneading effect). This can prevent sand and gravel from being crushed and can strip the asphalt. At the same time, by adjusting the gap between the two rubber rollers, it can be applied to the stripping process of various waste asphalt pavement materials.
[0033] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.
Claims
1. A stripping device for recycled asphalt mixture, characterized in that: It includes a shell, a fixed rubber roller, a movable rubber roller, an adjustment mechanism, a transmission mechanism and a reduction motor; a feed port is provided on the top of the shell; two rubber rollers are arranged in parallel and at intervals in the horizontal direction in the shell, and the gap between the two rubber rollers is below the feed port, wherein the end of the fixed rubber roller is fixed to the side wall plate of the shell through a bearing and a bearing seat, and the bearing seat of the movable rubber roller is slidably arranged in a transverse strip window on the side wall plate of the shell; the adjustment mechanism is connected between the shell and the bearing seat of the movable rubber roller to adjust the transverse position of the movable rubber roller; the transmission mechanism is arranged on the outer side of the shell; the reduction motor is fixed relatively to the shell, and the reduction motor is connected to the two rubber rollers through the transmission mechanism.
2. The stripping device for recycled asphalt mixture according to claim 1, characterized in that: A hopper is provided on the top of the shell body, a discharge port is provided on the lower side of the shell body, and a discharge dustpan is provided at the discharge port.
3. The stripping device for recycled asphalt mixture according to claim 1, characterized in that: The adjusting mechanism includes a screw rod, a rotating wheel and a handle. The screw rod is arranged along the length direction of the transverse strip window and is arranged at the rear part of the shell. The front end of the screw rod is rotatably connected to the bearing seat of the movable rubber roller in the transverse strip window. The middle section of the screw rod is spirally connected to the rear frame of the transverse strip window. The rear end of the screw rod is located outside the rear side wall of the shell. The rotating wheel is coaxially installed at the rear end of the screw rod. The handle is installed at the edge of the rotating wheel and is parallel to the axis of the screw rod.
4. The stripping device for recycled asphalt mixture according to claim 3, characterized in that: The screw rod is provided with scale lines for displaying the gap between the two rubber rollers.
5. The stripping device for regenerated asphalt mixture according to claim 3 or 4, characterized in that: There are two adjusting mechanisms, which are symmetrically arranged one on the left and one on the right and act on the bearing seats at both ends of the movable rubber roller respectively.
6. The stripping device for recycled asphalt mixture according to claim 1, characterized in that: The transmission mechanism includes a first rotating shaft, a first pulley, a first gear, a second pulley, a second rotating shaft, a second gear and a third pulley. The first rotating shaft and the second rotating shaft are rotatably arranged on the side of the shell. The first rotating shaft is parallel to the second rotating shaft and is arranged at an interval. The first pulley, the first gear and the second pulley are all fixed on the first rotating shaft. The second gear and the third pulley are all fixed on the second rotating shaft. The first gear and the second gear are meshed. The first pulley is connected to the output pulley of the reduction motor through a belt, the second pulley is connected to the fixed input pulley at the end of the fixed rubber roller through a belt, and the third pulley is connected to the movable input pulley at the end of the movable rubber roller through a belt.