Asphalt pumping mechanism with heat dissipation and noise reduction effects
By combining a three-layer protective shell structure with thermally conductive materials, the problem of balancing heat dissipation and noise reduction during asphalt pumping is solved, achieving low-noise and stable operation of high-consistency asphalt pumping, and providing excellent heat dissipation and noise reduction effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TONGJIYUAN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-12
AI Technical Summary
Existing asphalt pumps struggle to simultaneously achieve effective heat dissipation and noise reduction when pumping high-viscosity asphalt. Closed noise reduction structures lead to heat accumulation, while open heat dissipation structures weaken the noise reduction effect, failing to meet the requirements for low noise and stable operation.
It adopts a three-layer protective shell structure, with the inner shell and outer shell forming a double heat-conducting layer. Combined with heat dissipation vents with specific parameters, conical expansion holes and thermally conductive silicone buffer strips, it achieves the effect of noise reduction without heat blockage. The sponge layer absorbs noise sound waves and accelerates the discharge of hot air. The outer shell uses a graphene thermally conductive coating to assist in heat dissipation.
It achieves low-noise and stable operation during high-viscosity asphalt pumping, with a simple and reasonable structural design, good heat dissipation and noise reduction performance, extending equipment life and reducing costs.
Smart Images
Figure CN224352144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pumping equipment technology, specifically to an asphalt pumping mechanism with heat dissipation and noise reduction effects. Background Technology
[0002] Existing asphalt pumps, when pumping high-viscosity asphalt, face two major challenges due to their high power consumption: high-decibel noise generated by the operation of mechanical components (mainly from the motor and transmission components), and a large amount of heat continuously generated during high-power operation. However, in existing technologies, noise reduction and heat dissipation designs are often mutually restrictive. A closed noise reduction structure (such as multi-layered casing) can easily lead to heat accumulation, affecting the pump's lifespan; while an open heat dissipation structure (such as large-area openings) significantly weakens the noise reduction effect, failing to meet the requirement of "low noise and stable operation" in high-viscosity asphalt pumping scenarios. Therefore, there is an urgent need for an asphalt pumping mechanism that can achieve a synergistic effect of heat dissipation and noise reduction to overcome the technical shortcomings of existing technologies that struggle to balance these two aspects. To this end, we propose an asphalt pumping mechanism that combines heat dissipation and noise reduction. Utility Model Content
[0003] The purpose of this invention is to provide an asphalt pumping mechanism with heat dissipation and noise reduction effects, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an asphalt pumping mechanism with heat dissipation and noise reduction effects, comprising a protective shell, the protective shell including a support layer and an inner shell and an outer shell disposed on its inner and outer sides, a connecting plate disposed at the end of the protective shell, an electric motor mounted on one side of the connecting plate, the inside of the protective shell being connected to the pump body via a fixing rod, multiple sponge layers being disposed at equal intervals on the inner side of the inner shell, heat dissipation vents being provided between adjacent sponge layers, expansion holes being provided on the protective shell corresponding to the positions of the heat dissipation vents, an installation groove being provided on the outer side of the expansion holes, the diameter of the heat dissipation vents being 8-12mm, the expansion holes being a conical structure with a conical angle of 30°-45°; and a buffer strip being installed in the installation groove.
[0005] In the above solution, a support frame is provided at the bottom of the protective shell, and the inner side of the support frame is connected by a reinforcing rod.
[0006] In the above scheme, the support frame is provided with threaded holes that mate with bolts.
[0007] In the above scheme, the connecting plate is provided with connecting holes.
[0008] In the above scheme, the discharge port of the installation groove is equipped with a dustproof net.
[0009] In the above scheme, the sponge layer is a flame-retardant sound-absorbing sponge with irregular hemispherical depressions on the surface, 5-10mm in diameter, and a 0.5-1mm heat dissipation gap between the depressions; the buffer strip is made of thermally conductive silicone material and has spiral flow guiding holes inside.
[0010] In the above scheme, the pump body is provided with an inlet pipe and an outlet pipe at its upper and lower ends, respectively.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This asphalt pumping mechanism with heat dissipation and noise reduction effects has a simple and reasonable structural design and strong practicality. Through a three-layer protective shell structure of "inner shell + outer shell + support layer", combined with heat dissipation vents, conical expansion holes and thermally conductive silicone buffer strips designed with specific parameters, it achieves the effect of "noise reduction without heat obstruction". Among them, the hemispherical depressions on the surface of the sponge layer can efficiently rebound and absorb noise sound waves, while the gaps reserved between the depressions allow hot air to pass through; the conical expansion holes not only accelerate the discharge of hot air through the aperture gradient, but also reduce airflow vibration noise. Combined with the spiral guide pattern of the thermally conductive silicone buffer strip, it further reduces the secondary noise generated by airflow disturbance.
[0012] The support layer is made of aluminum alloy, which ensures the mechanical strength of the protective shell; the support frame is connected by reinforcing rods and fixed with bolts, which improves the overall stability of the device and is suitable for high-frequency vibration scenarios when pumping high-viscosity asphalt.
[0013] Flame-retardant sound-absorbing sponge is used instead of special sound-absorbing cotton, which reduces costs while ensuring noise reduction effect; the dustproof net can prevent external impurities from entering and extend the service life of the pump body. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the structure of this utility model.
[0016] In the diagram: 1. Protective shell; 11. Support layer; 12. Inner shell; 13. Outer shell; 14. Support frame; 15. Reinforcing rod; 16. Bolt; 17. Connecting plate; 18. Connecting hole; 19. Motor; 2. Fixing rod; 21. Pump body; 22. Sponge layer; 23. Heat dissipation vent; 24. Expansion hole; 25. Mounting groove; 26. Buffer strip; 27. Feed pipe; 28. Discharge pipe; 29. Dustproof net. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1-2 This utility model provides a technical solution: an asphalt pumping mechanism with heat dissipation and noise reduction effects, including a protective shell 1. The protective shell 1 includes a support layer 11 and an inner shell 12 and an outer shell 13 disposed on its inner and outer sides. A connecting plate 17 is provided at the end of the protective shell 1. An electric motor 19 is installed on one side of the connecting plate 17. The inside of the protective shell 1 is connected to the pump body 21 through a fixing rod 2. Multiple sponge layers 22 are evenly arranged on the inner side of the inner shell 12. A heat dissipation port 23 is opened between adjacent sponge layers 22. The heat dissipation port 23 penetrates the protective shell 1. An expansion hole 24 is opened on the protective shell 1 at the position corresponding to the heat dissipation port 23. An installation groove 25 is provided on the outer side of the expansion hole 24. The diameter of the heat dissipation port 23 is 8-12mm. The expansion hole 24 has a conical structure with a conical angle of 30°-45°. A buffer strip 26 is installed in the installation groove 25.
[0019] The opening of the expansion hole 24 gradually narrows, which reduces the instantaneous speed of the internal noise sound waves and thus reduces the friction between the sound waves and the air, thereby greatly reducing the decibel level of the noise. The opening on the buffer strip 26 is connected to the expansion hole 24 to form a channel. The design of the channel improves the heat dissipation performance of the device.
[0020] By setting the inner shell 12 and outer shell 13 to form a double heat-conducting layer, the heat energy converted and absorbed by the sponge layer 22 is absorbed and discharged, so that the heat dissipated by the pump body 21 is absorbed by the protective shell mechanism, which accelerates the heat dissipation efficiency without sacrificing noise reduction performance, and further improves the performance of the device. Specifically, the inner shell 12 and outer shell 13 can be selected from silicone rubber layers with good thermal conductivity, and the support layer 11 can be an aluminum alloy layer to ensure the mechanical strength of the equipment.
[0021] In the above scheme, a support frame 14 is provided at the bottom of the protective shell 1, and the inner side of the support frame 14 is connected by a reinforcing rod 15. The protective shell mechanism, consisting of a support layer 11, an inner shell 12, and an outer shell 13, provides good protection for the pump body 21, improves the noise resistance of the equipment, and ensures the mechanical strength of the structure. Furthermore, the protective shells 1 are bonded together using silicone adhesive.
[0022] In the above solution, the support frame 14 is provided with threaded holes that mate with bolts 16. The support frame 14 can be fixed to the corresponding mounting mechanism by means of bolts 16, thereby ensuring the stability of the equipment during operation.
[0023] In the above scheme, the connecting plate 17 is provided with connecting holes 18, and the connecting plate 17 is installed at both ends of the protective shell 1 by bolts, which facilitates the disassembly and maintenance of the equipment.
[0024] In the above scheme, the discharge port of the installation groove 25 is equipped with a dustproof net 29. The design of the dustproof net 29 can prevent external dust and impurities from entering the equipment.
[0025] In the above scheme, the sponge layer 22 is a flame-retardant sound-absorbing sponge with irregular hemispherical depressions on its surface, 5-10 mm in diameter, and a 0.5-1 mm heat dissipation gap between the depressions; the buffer strip 26 is made of thermally conductive silicone material and has spiral flow-guiding through holes inside. By setting spherical depressions on the sponge layer 11, the noise waves propagated from the pump body 21 are first reflected by the spherical depressions, controlling the noise waves inside the protective shell 1. The continuously reflected noise waves are eventually absorbed by the porous structure of the sponge layer 22 itself and converted into heat energy, thereby achieving a good noise reduction effect. Using ordinary sponge layers for noise reduction is cheaper and more economical than using dedicated sound-absorbing cotton.
[0026] The heat generated by the pump body 21 during operation is conducted to the gaps in the sponge layer through the inner shell 12 (which uses an aluminum alloy thermal conductive layer). The hot airflow is gathered through the gaps to the heat dissipation port 23. After being accelerated through the conical expansion hole 24, it is discharged through the spiral through hole of the buffer strip 26. At the same time, the outer shell 13 (which uses a graphene thermal conductive coating) absorbs heat from the external environment and dissipates heat in the reverse direction, forming a dual heat dissipation path of 'internal flow guidance - external assistance', ensuring that the pump body operating temperature is stable below 80℃.
[0027] In the above scheme, the pump body 21 is provided with an inlet pipe 27 and an outlet pipe 28 at its upper and lower ends, respectively, and the high-consistency asphalt raw material enters and exits through the inlet pipe 27 and the outlet pipe 28.
[0028] Working principle:
[0029] This asphalt pumping mechanism with heat dissipation and noise reduction effects installs the pump body 21 inside the protective shell 1. The support layer 11, inner shell 12 and outer shell 13 form a protective effect on it, which improves the noise resistance of the equipment. The noise generated by the pump body first contacts the sponge layer on the inner side of the inner shell. The hemispherical depression on its surface bounces the sound waves multiple times, limiting the diffusion of the sound waves.
[0030] During the rebound process, the sound wave energy is absorbed by the porous structure of the sponge layer and converted into heat energy, achieving initial noise reduction; the remaining small amount of sound wave is attenuated by the three-layer structure of the protective shell, and the noise decibels propagating outward are significantly reduced; the heat generated by the pump body is conducted to the gap of the sponge layer through the inner shell, and the hot air flow is gathered to the heat dissipation port through the gap, and then enters the conical expansion hole; under the action of the aperture gradient of the expansion hole, the hot air flow velocity is accelerated, and it is orderly discharged through the spiral guide pattern of the buffer strip;
[0031] Meanwhile, the graphene thermally conductive coating on the outer shell absorbs heat from the external environment, forming a dual path of "internal heat dissipation + external auxiliary heat dissipation," ensuring that the pump body's operating temperature will not be too high. The heat dissipation structure and the noise reduction structure work together to avoid the heat accumulation problem of traditional sealed structures and solve the noise reduction failure problem of traditional open structures, achieving low noise and stable operation during the pumping of high-consistency asphalt. The opening on the buffer strip 26 is connected to the expansion hole 24 to form a channel. The design of the channel improves the heat dissipation performance of the device, making the airflow generate less noise when passing through the channel.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An asphalt pumping mechanism with heat dissipation and noise reduction effects, comprising a protective shell (1), characterized in that: The protective shell (1) includes a support layer (11) and an inner shell (12) and an outer shell (13) disposed on its inner and outer sides. A connecting plate (17) is provided at the end of the protective shell (1). A motor (19) is installed on one side of the connecting plate (17). The protective shell (1) is connected to the pump body (21) through a fixing rod (2). Multiple sponge layers (22) are evenly arranged on the inner side of the inner shell (12). A heat dissipation port (23) is opened between adjacent sponge layers (22). An expansion hole (24) is opened on the protective shell (1) at the position corresponding to the heat dissipation port (23). An installation groove (25) is provided on the outer side of the expansion hole (24). The diameter of the heat dissipation port (23) is 8-12mm. The expansion hole (24) is a conical structure with a conical angle of 30°-45°. A buffer strip (26) is installed in the installation groove (25).
2. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 1, characterized in that: The protective shell (1) is provided with a support frame (14) at the bottom, and the inner side of the support frame (14) is connected by a reinforcing rod (15).
3. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 2, characterized in that: The support frame (14) is provided with threaded holes that mate with bolts (16).
4. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 1, characterized in that: The connecting plate (17) has a connecting hole (18).
5. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 1, characterized in that: The discharge port of the installation groove (25) is equipped with a dustproof net (29).
6. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 1, characterized in that: The sponge layer (22) is a flame-retardant sound-absorbing sponge with irregular hemispherical depressions on the surface, 5-10 mm in diameter, and a 0.5-1 mm heat dissipation gap between the depressions; the buffer strip (26) is made of thermally conductive silicone material and has spiral flow guide holes inside.
7. The asphalt pumping mechanism with heat dissipation and noise reduction effects according to claim 1, characterized in that: The pump body (21) is provided with an inlet pipe (27) and an outlet pipe (28) at its upper and lower ends, respectively.