An asphalt mixing device
By introducing a dual mixing method combining spiral mixing blades and reciprocating sliding in the asphalt mixing device, the problems of insufficient mixing and high energy consumption in the existing technology are solved, and a highly efficient and energy-saving asphalt mixing effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG TRANSPORTATION SPECIAL MATERIALS TECH CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing asphalt mixing equipment uses a single mixing method, resulting in incomplete and inefficient mixing, as well as high energy consumption.
It adopts a dual mixing method of spiral mixing blades and reciprocating sliding. The spiral mixing blades are rotated and reciprocated by a motor-driven shaft, and the reciprocating sliding of the spiral blades is realized by the transmission component, so as to achieve comprehensive and efficient mixing.
It achieves comprehensive and efficient mixing of asphalt, reduces the energy consumption of the equipment, and the reciprocating movement of the spiral mixing blades requires no additional power, thus improving mixing efficiency and energy saving.
Smart Images
Figure CN224422631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of asphalt mixing technology, specifically to an asphalt mixing device. Background Technology
[0002] In modern road construction and other engineering fields, asphalt mixing is undoubtedly a crucial step, and its quality directly affects the quality of road paving and its service life.
[0003] For example, Chinese patent application number 202322637245.2 discloses a road asphalt mixing device, including a frame, an adjusting component, and a moving component. A mixing device is fixedly installed on the top of the frame, and a conveying cylinder is provided on the top of the frame. The adjusting component is set on the mixing device, and the moving component is set on the frame. The moving component includes a first support leg, a gear, a movable plate, and a toothed plate. A gear is fixedly installed on the outer wall of the first support leg, and a toothed plate is fixedly installed on one side of the movable plate. The toothed plate is meshed with the gear.
[0004] Most existing asphalt mixing devices can only drive the mixing components to rotate and mix the asphalt, resulting in a single mixing method that is not conducive to comprehensive and efficient mixing of asphalt. Therefore, to address the above-mentioned technical problems, an asphalt mixing device is proposed. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention proposes an asphalt mixing device in which the spiral mixing blades can rotate and slide back and forth simultaneously. This combination of two mixing methods facilitates comprehensive and efficient mixing of asphalt.
[0006] An asphalt mixing device, comprising:
[0007] A mixing tank with an internal mixing chamber, a feed inlet at the top and a discharge valve at the bottom;
[0008] The stirring mechanism includes a motor, a rotating shaft, a connecting sleeve, and a transmission assembly. The motor is located at the top of the stirring tank. The rotating shaft is coaxially located inside the stirring chamber and coaxially connected to the output shaft of the motor. The connecting sleeve is slidably fitted onto the rotating shaft along the axial direction of the rotating shaft. Spiral stirring blades are provided around the periphery of the connecting sleeve. The transmission assembly connects the stirring chamber and the connecting sleeve and drives the connecting sleeve to reciprocate when the connecting sleeve rotates.
[0009] The beneficial effects of the above-mentioned asphalt mixing device are as follows:
[0010] The motor drives the shaft to rotate, which in turn drives the spiral mixing blades to rotate. At the same time, the transmission component drives the spiral mixing blades to move back and forth, thus mixing the asphalt by rotating and moving the spiral mixing blades back and forth. The combination of the two mixing methods facilitates comprehensive and efficient mixing of asphalt. Moreover, the reciprocating movement of the spiral mixing blades does not require additional power, reducing the energy consumption of the device.
[0011] In one embodiment, the mixing tank includes a tank body and a top cover, the top cover being detachably disposed at the top of the tank body, the feed inlet and the motor being disposed on the top cover, and the discharge valve being disposed at the bottom of the tank body.
[0012] In one embodiment, a feed cone is detachably provided on the feed inlet.
[0013] In one embodiment, a positioning sleeve is provided at the bottom of the stirring chamber, and the bottom of the rotating shaft is rotatably inserted into the positioning sleeve.
[0014] In one embodiment, the transmission assembly includes a guide sleeve and a guide rod; the guide sleeve is coaxially sleeved on the rotating shaft and connected to the top surface of the stirring chamber; a wave-shaped guide groove with open ends is provided on the circumferential side of the guide sleeve; two sets of the guide rods are detachably provided at the top of the connecting sleeve; each set of the guide rods is provided with a guide ball at its top; and the two sets of guide balls are slidably disposed in the wave-shaped guide groove.
[0015] In one embodiment, two sets of limiting guide rails are arranged opposite to each other on the circumference of the rotating shaft, and two sets of limiting guide grooves are opened opposite to each other on the inner side of the connecting sleeve. The two sets of limiting guide grooves can be slidably sleeved on the two sets of limiting guide rails along the axial direction of the rotating shaft.
[0016] In one embodiment, heating elements are spirally arranged around the periphery of the tank along its axial direction.
[0017] In one embodiment, the tank body is surrounded by an insulation layer, which covers the heating element.
[0018] In one embodiment, a protective cover is provided around the tank body, and the protective cover covers the insulation layer. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0020] Figure 1This is a three-dimensional structural diagram of an asphalt mixing device provided in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 An exploded view of an asphalt mixing device is shown.
[0022] Figure 3 for Figure 1 An exploded view of the mixing mechanism in an asphalt mixing plant is shown.
[0023] Figure 4 for Figure 1 An exploded view of a transmission component in an asphalt mixing device is shown.
[0024] Figure 5 for Figure 1 The image shows a right-side view of the tank in an asphalt mixing plant after it has been cut open.
[0025] Figure 6 for Figure 5 An enlarged schematic diagram of region A in the middle.
[0026] Figure label:
[0027] 10. Mixing tank; 11. Tank body; 12. Top cover; 101. Mixing chamber; 1011. Positioning sleeve; 102. Feed inlet; 103. Discharge valve; 104. Feed cone; 105. Heating element; 106. Insulation layer; 107. Protective cover;
[0028] 20. Motor; 201. Rotating shaft; 2011. Limiting guide rail; 202. Connecting sleeve; 2021. Limiting guide groove; 203. Spiral stirring blade; 204. Guide sleeve; 2041. Wave guide groove; 205. Guide rod; 2051. Guide ball. Detailed Implementation
[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0030] Please see Figures 1 to 4An asphalt mixing device according to one embodiment includes a mixing tank 10 and a mixing mechanism. Specifically, the mixing tank 10 has a mixing chamber 101 inside, a feed inlet 102 at the top, and a discharge valve 103 at the bottom. The mixing mechanism includes a motor 20, a rotating shaft 201, a connecting sleeve 202, and a transmission assembly. The motor 20 is located at the top of the mixing tank 10. The rotating shaft 201 is coaxially located inside the mixing chamber 101 and coaxially connected to the output shaft of the motor 20. The connecting sleeve 202 is slidably fitted onto the rotating shaft 201 along its axial direction. The rotating shaft 201 has two sets of limiting guide rails 2011 arranged opposite to each other on its circumference. The connecting sleeve 202 has two sets of limiting guide grooves 2021 arranged opposite to each other on its inner side. The two sets of limiting guide grooves 2021 can slide along the axial direction of the rotating shaft 201 and are sleeved on the two sets of limiting guide rails 2011. The connecting sleeve 202 has spiral stirring blades 203 arranged on its circumference. The transmission component connects the stirring chamber 101 and the connecting sleeve 202 and drives the connecting sleeve 202 to slide back and forth when the connecting sleeve 202 rotates.
[0031] In the above embodiment, the starting motor 20 drives the rotating shaft 201 to rotate. The rotation of the rotating shaft 201 drives the spiral mixing blade 203 to rotate through the cooperation of two sets of limiting guide rails 2011 and two sets of limiting guide grooves 2021. At the same time as the spiral mixing blade 203 rotates, the transmission component drives the spiral mixing blade 203 to reciprocate, so that the spiral mixing blade 203 rotates and reciprocates to mix the asphalt. The combination of the two mixing methods facilitates comprehensive and efficient mixing of asphalt. Moreover, the reciprocating movement of the spiral mixing blade 203 does not require additional power, which reduces the energy consumption of the device.
[0032] Specifically, in the above embodiments, the tungsten carbide coating on the surface of the spiral stirring blade 203 has a thickness of 50μm-500μm, a hardness of 1500-3000HV, and a friction coefficient of less than 0.4, which effectively extends the service life of the spiral stirring blade 203 under high wear conditions.
[0033] Specifically, in the above embodiment, the transmission assembly includes a guide sleeve 204 and a guide rod 205. The guide sleeve 204 is coaxially sleeved on the rotating shaft 201 and connected to the top surface of the stirring chamber 101. A wave-shaped guide groove 2041 with continuous ends is formed along the circumference of the guide sleeve 204. Two sets of guide rods 205 are detachably provided at the top of the connecting sleeve 202. Each set of guide rods 205 has a guide ball 2051 at its top, and the two sets of guide balls 2051 are slidably disposed within the wave-shaped guide groove 2041. Specifically, the guide rod 205 and the connecting sleeve 202 are connected by bolts.
[0034] When the connecting sleeve 202 rotates, it drives the guide rod 205 to rotate. The rotation of the guide rod 205 causes the guide ball 2051 to slide along the wave guide groove 2041, thus enabling the guide rod 205 to reciprocate. The reciprocating movement of the guide rod 205, in turn, drives the connecting sleeve 202 to reciprocate, making it convenient to drive the connecting sleeve 202 to reciprocate. It is understandable that by removing the connection between the guide rod 205 and the connecting sleeve 202, the connecting sleeve 202 can be removed from the rotating shaft 201, facilitating individual replacement of the spiral stirring blade 203 when it is damaged, thereby reducing the replacement cost of the device.
[0035] Based on the above embodiments, the mixing tank 10 further includes a tank body 11 and a top cover 12. The top cover 12 is detachably mounted on the top of the tank body 11, the feed inlet 102 and the motor 20 are mounted on the top cover 12, and the discharge valve 103 is mounted on the bottom of the tank body 11. Specifically, the top cover 12 is bolted to the tank body 11. The mixing chamber 101 can be opened by removing the top cover 12, thereby facilitating cleaning of the mixing chamber 101.
[0036] Based on the above embodiments, a feed cone 104 is further detachably provided on the feed inlet 102. Specifically, the feed cone 104 is connected to the feed inlet 102 by bolts. By providing the feed cone 104, the convenience of adding asphalt raw materials to the mixing chamber 101 can be improved.
[0037] Based on the above embodiments, a positioning sleeve 1011 is further provided at the bottom end of the stirring chamber 101, and the bottom end of the rotating shaft 201 is rotatably inserted into the positioning sleeve 1011. By providing the positioning sleeve 1011, the stability of the rotation of the rotating shaft 201 can be improved.
[0038] Please see Figure 1 , Figure 5 and Figure 6 In one embodiment, heating elements 105 are spirally arranged around the periphery of the tank 11 along its axial direction. Heating the asphalt inside the tank 11 via the heating elements 105 improves the asphalt's fluidity, allowing it to mix better with other raw materials, thereby enhancing the uniformity and quality of the asphalt mixture. It is understood that the heating elements 105 are wound with 200-2000 turns, selected according to actual conditions.
[0039] Based on the above embodiments, furthermore, a heat insulation layer 106 is provided around the perimeter of the tank 11, and the heat insulation layer 106 covers the heating element 105. It is understood that the heat insulation layer 106 can be made of excellent heat insulation materials such as ceramic fiber. By setting the heat insulation layer 106, heat loss to the external environment during stirring can be effectively reduced, forming a relatively independent thermal environment and improving heat utilization. This not only helps maintain the temperature stability inside the stirring tank 10, reducing energy waste and improving heating efficiency, but also reduces the thermal impact of the equipment on the surrounding environment, improves the working environment, and embodies the design concept of energy conservation and environmental protection.
[0040] Based on the above embodiments, a protective cover 107 is further provided around the tank body 11, and the protective cover 107 covers the insulation layer 106. By providing the protective cover 107 to isolate the insulation layer 106, the insulation effect of the insulation layer 106 can be further improved, and the insulation layer 106 can be prevented from being damaged by impacts and avoid operators from directly contacting the insulation layer 106 and causing burns, thereby improving the service life of the insulation layer 106 and the safety of the device.
[0041] The specific implementation method of the above-mentioned asphalt mixing device is as follows:
[0042] The motor 20 drives the rotating shaft 201 to rotate. The rotation of the rotating shaft 201, in turn, drives the connecting sleeve 202 to rotate through the cooperation of two sets of limiting guide rails 2011 and two sets of limiting guide grooves 2021. The rotation of the connecting sleeve 202 drives the spiral mixing blades 203 to rotate. At the same time, the connecting sleeve 202 drives the guide rod 205 to rotate. The rotation of the guide rod 205 drives the guide ball 2051 to slide along the wave guide groove 2041, which causes the guide rod 205 to move back and forth. The back and forth movement of the guide rod 205 drives the connecting sleeve 202 to move back and forth. This causes the spiral mixing blades 203 to rotate and move back and forth to mix the asphalt. The combination of the two mixing methods facilitates comprehensive and efficient mixing of asphalt. Moreover, the back and forth movement of the spiral mixing blades 203 does not require additional power, reducing the energy consumption of the device.
[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. An asphalt mixing device, characterized in that, include: A mixing tank (10) is provided with a mixing chamber (101) inside. The mixing tank (10) is provided with a feed inlet (102) at the top and a discharge valve (103) at the bottom. The stirring mechanism includes a motor (20), a rotating shaft (201), a connecting sleeve (202), and a transmission assembly. The motor (20) is located at the top of the stirring tank (10). The rotating shaft (201) is coaxially located inside the stirring chamber (101) and coaxially connected to the output shaft of the motor (20). The connecting sleeve (202) is slidably fitted on the rotating shaft (201) along the axial direction. Spiral stirring blades (203) are provided around the connecting sleeve (202). The transmission assembly connects the stirring chamber (101) and the connecting sleeve (202) to drive the connecting sleeve (202) to reciprocate when the connecting sleeve (202) rotates.
2. The asphalt mixing device according to claim 1, characterized in that, The mixing tank (10) includes a tank body (11) and a top cover (12). The top cover (12) is detachably disposed on the top of the tank body (11). The feed inlet (102) and the motor (20) are disposed on the top cover (12). The discharge valve (103) is disposed at the bottom of the tank body (11).
3. The asphalt mixing device according to claim 1, characterized in that, The feed inlet (102) is detachably equipped with a feed cone (104).
4. An asphalt mixing device according to claim 1, characterized in that, The bottom end of the stirring chamber (101) is provided with a positioning sleeve (1011), and the bottom end of the rotating shaft (201) is rotatably inserted into the positioning sleeve (1011).
5. An asphalt mixing device according to claim 1, characterized in that, The transmission assembly includes a guide sleeve (204) and a guide rod (205); the guide sleeve (204) is coaxially sleeved on the rotating shaft (201) and connected to the top surface of the stirring chamber (101); the guide sleeve (204) has a wave guide groove (2041) with the ends connected along its circumference; the top of the connecting sleeve (202) is detachably provided with two sets of the guide rods (205); the top of each set of the guide rods (205) is provided with a guide ball (2051); the two sets of guide balls (2051) are slidably disposed in the wave guide groove (2041).
6. An asphalt mixing device according to claim 1, characterized in that, Two sets of limiting guide rails (2011) are arranged opposite each other on the circumference of the rotating shaft (201), and two sets of limiting guide grooves (2021) are opened opposite each other on the inner side of the connecting sleeve (202). The two sets of limiting guide grooves (2021) can slide along the axial direction of the rotating shaft (201) on the two sets of limiting guide rails (2011).
7. An asphalt mixing device according to claim 2, characterized in that, The tank (11) is provided with heating tubes (105) spirally arranged around its circumference along its axial direction.
8. An asphalt mixing device according to claim 7, characterized in that, The tank body (11) is surrounded by an insulation layer (106), which covers the electric heating tube (105).
9. An asphalt mixing device according to claim 8, characterized in that, The tank (11) is provided with a protective cover (107) around its perimeter, and the protective cover (107) covers the insulation layer (106).