Asphalt mixture feeding device

Abstract

The utility model discloses an asphalt mixture feeding device which comprises a belt body, a front-end conveying assembly, a rear-end conveying assembly and a connecting plate arranged between the front-end conveying assembly and the rear-end conveying assembly, the front-end conveying assembly comprises front-end side plates arranged on the two sides of the belt body respectively, and the rear-end conveying assembly comprises rear-end side plates arranged on the two sides of the belt body respectively. The front end conveying assembly is connected with the rear end conveying assembly through a connecting plate in a steering mode, a first roller, a driving roller and a second roller are arranged at the front end, the middle portion and the rear end of the front end side plate respectively, and a transmission piece used for driving the first roller to rotate is connected between the first roller and the driving roller. A frame structure with the overall angle adjustable is formed, the equipment application range is remarkably widened, the problems that the feeding angle of a traditional conveying belt is fixed, and the traditional conveying belt cannot adapt to different working environments are effectively solved, and the operation stability of a belt body under the complex working condition is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bituminous mixture technical field, concretely is a bituminous mixture's feeding device. BACKGROUND

[0002] Bituminous mixture is a kind of hot composite material by bituminous binder, mineral aggregate (including coarse aggregate, fine aggregate and mineral filler) and necessary modifier or anti-aging agent etc., with cohesive and elastoplasticity paving material formed by high-temperature mixing, its skeleton structure can be divided into continuous gradation, intermittent gradation or open gradation etc., with high-temperature stability, low-temperature crack resistance, durability and skid resistance etc., is widely used in highway pavement, airport pavement and urban road pavement, specific technical index, reference "highway asphalt pavement construction technical specification" (JTG F40-2004).

[0003] In the preparation process of bituminous mixture, mineral aggregate needs to be added to bituminous binder and mixed, in actual production process, mineral aggregate is generally transported to stirring device by conveying belt, but in prior art, the feeding angle of conveying belt is fixed, cannot adapt to different working environments. UTILITY MODEL CONTENT

[0004] The utility model provides a bituminous mixture's feeding device to overcome above-mentioned situation shortage, aims at providing the technical scheme that can solve above-mentioned problem.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of bituminous mixture's feeding device, including belt body, front end conveying component, rear end conveying component and the connecting plate between front end conveying component and rear end conveying component;

[0007] Front end conveying component includes the front end side plate of being set respectively in the both sides of belt body, and the front end, middle part and rear end of front end side plate are respectively equipped with first roller, driving roller and second roller, and driving member for driving first roller is connected between first roller and driving roller, and power motor piece for driving driving roller is fixed on the outside of front end side plate;

[0008] Second roller includes second shaft and second cylinder body rotatably arranged on second shaft, second shaft is fixedly installed at the rear end of front end side plate and outwardly penetrates from front end side plate, and second shaft is rotatably connected to the upper of connecting plate;

[0009] The rear end side plate is provided with a third roller at the rear end, and the front end of the rear end side plate is fixedly arranged on the rear end of the connecting plate.

[0010] The preheating assembly is fixedly arranged on the rear end side plate and is in contact with the belt body.

[0011] As a further scheme of the utility model, an arc-shaped slot is formed in the front end of the connecting plate, and a guide rod is fixedly arranged on the outer wall of the front end side plate and is in sliding fit in the arc-shaped slot.

[0012] As a further scheme of the utility model, the first roller comprises a first rotating shaft rotatably arranged on the front end side plate, a first outer ring cylinder and a first inner ring cylinder are fixedly arranged on the first rotating shaft, the first outer ring cylinder is arranged at both ends of the first inner ring cylinder, and the diameter of the first outer ring cylinder is greater than that of the first inner ring cylinder.

[0013] The driving roller comprises a driving rotating shaft rotatably arranged on the front end side plate, one end of the driving rotating shaft is arranged outside the front end side plate and is connected with the working shaft of the power motor, a driving outer ring cylinder and a driving inner ring cylinder are fixedly arranged on the driving rotating shaft, the driving outer ring cylinder is arranged at both ends of the driving inner ring cylinder, and the diameter of the driving outer ring cylinder is greater than that of the driving inner ring cylinder.

[0014] The driving inner ring cylinder and the first inner ring cylinder are connected through a transmission chain, and the front end of the first outer ring cylinder, the upper end and the lower end of the driving outer ring cylinder are in abutting fit with the belt body.

[0015] As a further scheme of the utility model, the preheating assembly comprises a plurality of mounting cross beams fixedly arranged between the rear end side plates along the length direction, a mounting base plate is arranged on the mounting cross beams, and a plurality of mounting grooves are equidistantly arranged on the lower end surface of the mounting base plate and are in clamping fit with the mounting cross beams.

[0016] As a further scheme of the utility model, a polyimide electrothermal film is fixedly arranged on the upper end surface of the mounting base plate, a heat-conducting silica gel layer is arranged on the upper end surface of the polyimide electrothermal film, a PTFE coating layer is coated on the heat-conducting silica gel layer, and the belt body is in contact with the PTFE coating layer.

[0017] As a further scheme of the utility model, the belt body comprises a glass fiber base cloth, a PTFE coating layer is coated on the inner side of the glass fiber base cloth, a ceramic particle reinforced polyurethane coating layer is coated on the outer side of the glass fiber base cloth, and the ceramic particle reinforced polyurethane coating layer comprises a polyurethane matrix and an aluminum oxide or silicon carbide ceramic particle mixture.

[0018] As a further scheme of the utility model: the front end side plate is equipped with a tensioning and adjusting assembly, the tensioning and adjusting assembly comprises an adjusting rotating shaft rotatably arranged on the front end side plate, one end of the adjusting rotating shaft extends out of the front end side plate and is connected with an adjusting motor, an adjusting transmission rod is fixedly arranged on the adjusting rotating shaft, and an adjusting roller is rotatably arranged on the adjusting transmission rod and abuts against a transmission chain.

[0019] As a further scheme of the utility model: the front end side plate and the rear end side plate are respectively equipped with inclined stop plates at the upper ends of the opposite surfaces.

[0020] As a further scheme of the utility model: the rear end of the rear end side plate is fixedly equipped with a feeding inclined plate in abutting cooperation with the head of the belt.

[0021] Compared with the prior art, the utility model has the beneficial effects as follows:

[0022] First, the second rotating shaft is fixedly installed at the rear end of the front end side plate, so the second rotating shaft is integrally fixed with the front end side plate, the second rotating shaft is rotatably connected to the connecting plate, so the connecting plate can be rotationally adjusted with the second rotating shaft as the rotation center, and the front end of the rear end side plate is fixedly arranged at the rear end of the connecting plate, so the rear end side plate can be rotationally adjusted with the second rotating shaft as the rotation center. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural perspective view of the utility model;

[0024] Figure 2 is another structural perspective view of the utility model;

[0025] Figure 3 is Figure 2 the partial view of A in the figure;

[0026] Figure 4 is a top view of the utility model;

[0027] Figure 5 is Figure 4 the partial view of C in the figure;

[0028] Figure 6 is Figure 4 the sectional view along the direction of B-B in the figure;

[0029] Figure 7 is Figure 6A local view at D;

[0030] Figure 8 is a structure schematic view of the belt body in the utility model;

[0031] The reference signs and names in the drawing are as follows:

[0032] The belt body-100, the front end conveying assembly-101, the rear end conveying assembly-102, the connecting plate-103, the front end side plate-104, the first roller-105, the driving roller-106, the second roller-107, the transmission member-108, the power motor member-109, the second rotating shaft-110, the second cylinder-111, the rear end side plate-113, the third roller-114, the fourth roller-115, the preheating assembly-116, the arc-shaped groove-117, the guide rod-118, the first rotating shaft-119, the first outer ring cylinder-120, the first inner ring cylinder-121, the driving rotating shaft-122, the driving outer ring cylinder-123, the driving inner ring cylinder-124, the transmission chain belt-125, the installation cross beam-126, the installation base plate-127, the installation groove-128, the polyimide electrothermal film-129, the heat-conducting silica gel layer-130, the PTFE coating-131, the glass fiber base cloth-132, the ceramic particle reinforced polyurethane coating-133, the tension adjusting assembly-137, the adjusting rotating shaft-138, the adjusting motor member-139, the adjusting transmission rod-140, the adjusting roller-141, the oblique stop plate-142, the belt body operation groove-143, and the feeding inclined plate-144. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] Please refer to Figures 1-8 A feeding device of asphalt mixture, comprising a belt body 100, a front end conveying assembly 101, a rear end conveying assembly 102 and a connecting plate 103 arranged between the front end conveying assembly 101 and the rear end conveying assembly 102;

[0035] The front end conveying assembly 101 comprises front end side plates 104 arranged on both sides of the belt body 100 respectively, the front end, the middle and the rear end of the front end side plate 104 are respectively provided with a first roller 105, a driving roller 106 and a second roller 107, a transmission member 108 for driving the first roller 105 to rotate is connected between the first roller 105 and the driving roller 106, and a power motor member 109 for driving the driving roller 106 is fixedly arranged on the outer side of the front end side plate 104;

[0036] The second roller 107 comprises a second rotating shaft 110 and a second roller body 111 rotatably arranged on the second rotating shaft 110, the second rotating shaft 110 is fixedly installed at the rear end of the front end side plate 104 and penetrates outwards from the front end side plate 104, and the second rotating shaft 110 is rotatably connected to the upper end of the connecting plate 103;

[0037] The rear end conveying assembly 102 comprises rear end side plates 113 arranged on both sides of the belt body 100 respectively, the rear end of the rear end side plate 113 is provided with a third roller 114, the front end of the rear end side plate 113 is fixedly arranged on the rear end of the connecting plate 103, the lower end of the connecting plate 103 is fixedly provided with a fourth roller 115, and the belt body 100 is tightly wound on the front end of the first roller 105, the upper end and the lower end of the driving roller 106, the upper end of the second roller 107, the rear end of the third roller 114 and the upper end of the fourth roller 115;

[0038] The rear end side plate 113 is fixedly provided with a preheating assembly 116 which is in contact with the belt body 100;

[0039] As shown in FIGS. Figure 1 、 2 and 3, first, the second rotating shaft 110 is fixedly installed at the rear end of the front end side plate 104, so that the second rotating shaft 110 is fixedly integrated with the front end side plate 104, the second rotating shaft 110 is rotatably connected to the upper end of the connecting plate 103, so that the connecting plate 103 can be rotationally adjusted with the second rotating shaft 110 as the rotation center, and the front end of the rear end side plate 113 is fixedly arranged on the rear end of the connecting plate 103, so that the rear end side plate 113 can be rotationally adjusted with the second rotating shaft 110 as the rotation center, the asphalt mixture feeding device of the utility model is connected to the front end conveying assembly 101 and the rear end conveying assembly 102 through the connecting plate 103, and a frame structure which can be angle-adjusted as a whole is formed, the application range of the equipment is significantly improved, the problem that the feeding angle of the traditional conveying belt is fixed and cannot be adapted to different working environments is effectively solved, and the running stability of the belt body 100 under complex working conditions is ensured;

[0040] Secondly, the driving roller 106 in the front conveying assembly 101 is linked with the first roller 105 through a transmission member 108 (such as a chain or a synchronous belt), the power transmission path is optimized, the driving roller 106 drives the belt body 100 at the same time, the first roller 105 is synchronously pulled to rotate, the bidirectional pulling force of the belt body 100 is formed, the load of the single-point driving of the driving roller 106 is reduced, the slippage phenomenon of the belt body 100 due to insufficient local tension is avoided, and therefore the transmission efficiency and the service life are improved, meanwhile, the power motor member 109 in the prior art is generally arranged at the head, the head of the conveying belt is affected to be connected with other operation positions, the feeding device of the utility model moves the driving roller 106 to the middle position of the front end side plate 104, and therefore the power motor member 109 is arranged to the middle part of the front end side plate 104, the structure layout is optimized, and better connection with other operation positions is facilitated;

[0041] The second shaft 110 is fixedly installed and cooperates with the second cylinder body 111 which can independently rotate, the contact surface of the second cylinder body 111 and the belt body 100 is flexibly rotated, the axial deviation of the second cylinder body 111 is avoided through the rigidity fixation of the second shaft 110, the friction resistance of the rotating part is reduced, and the energy consumption is reduced;

[0042] In addition, the "S" shape wrapping path formed by the third roller 114 and the fourth roller 115 in the rear conveying assembly 102 is combined with the close adhesion (such as the built-in electric heating element) of the preheating assembly 116 and the belt body 100, the mineral aggregate is continuously heated in the conveying process, the mineral aggregate is preheated, the hot mixing of the asphalt binder and the mineral aggregate is facilitated, the operation efficiency is improved, the belt body 100 tension self-adaptive adjustment is realized through the multi-roller tension layout, the deviation risk is further reduced, the overall design is optimized through the structure and the function integration, and the continuity, the uniformity and the long-term operation stability of the conveying equipment can be obviously improved.

[0043] In the embodiment of the utility model, the front end of the connecting plate 103 is provided with an arc-shaped groove 117, and the outer wall of the front end side plate 104 is fixedly provided with a guide rod 118 which is slidingly matched in the arc-shaped groove 117;

[0044] As shown in Figure 1 and 3 , in the process of rotating adjustment of the rear end side plate 113, the rear end side plate 113 and the connecting plate 103 are rotatably adjusted at the center of the second shaft 110, in the process of rotation of the connecting plate 103 on the second shaft 110, the connecting plate 103 and the front end side plate 104 are rotatably adjusted more stably through the sliding matching of the guide rod 118 in the arc-shaped groove 117, and the rotatable connection effect between the rear end side plate 113 and the front end side plate 104 is more stable;

[0045] In one embodiment, the guide rod 118 is provided with bolt mounting holes. After the angles of the front side plate 104 and the rear side plate 113 are adjusted to the correct position, bolts are locked into the bolt mounting holes to achieve relative fixed positioning between the front side plate 104 and the connecting plate 103.

[0046] In one embodiment, two connecting plates 103 are provided, respectively located on the left and right sides of the belt body 100. Therefore, there are also two guide rods 118 and arc grooves 117, which makes the locking effect of the bolts on the guide rods 118 more stable.

[0047] In this embodiment of the utility model, the first roller 105 includes a first rotating shaft 119 rotatably mounted on the front end side plate 104. A first outer ring cylinder 120 and a first inner ring cylinder 121 are fixedly mounted on the first rotating shaft 119. The first outer ring cylinder 120 is located at both ends of the first inner ring cylinder 121 and the diameter of the first outer ring cylinder 120 is larger than that of the first inner ring cylinder 121.

[0048] The active roller 106 includes an active rotating shaft 122 rotatably mounted on the front end side plate 104. One end of the active rotating shaft 122 extends out of the front end side plate 104 and is connected to the working shaft of the power motor component 109. An active outer ring cylinder 123 and an active inner ring cylinder 124 are fixedly mounted on the active rotating shaft 122. The active outer ring cylinder 123 is located at both ends of the active inner ring cylinder 124, and the diameter of the active outer ring cylinder 123 is larger than that of the active inner ring cylinder 124.

[0049] A drive chain belt 125 is connected between the active inner ring cylinder 124 and the first inner ring cylinder 121. The front end of the first outer ring cylinder 120, the upper end and the lower end of the active outer ring cylinder 123 respectively abut against the belt body 100.

[0050] like Figure 7 As shown, both the first roller 105 and the active roller 106 adopt a split inner and outer ring cylinder design. Through the large diameter structure of the first outer ring cylinder 120 and the active outer ring cylinder 123, the contact area with the belt 100 is increased and the support strength is improved, avoiding local deformation or stress concentration of the belt 100. At the same time, the first inner ring cylinder 121 and the active inner ring cylinder 124 are linked by the transmission chain belt 125 to realize the direct transmission of power from the active roller 106 to the first roller 105, reducing the inertial resistance and transmission loss when the traditional roller rotates as a whole.

[0051] The active outer ring cylinder 123 and the belt 100 form a two-way wrap angle by multiple abutting points at the upper and lower ends, which enhances the friction between the belt 100 and the roller. Together with the synchronous drive of the inner ring cylinder of the two rollers by the transmission chain belt 125, it effectively suppresses the slippage or deviation of the belt 100.

[0052] The utility model discloses an embodiment, preheating assembly 116 including the even solid of multiple installation crossbeam 126 between rear end side board 113 along the length direction, is set up with installation base plate 127 on installation crossbeam 126, and the equidistance installation groove 128 of installation base plate 127 lower end surface is set up with the installation crossbeam 126 card joint cooperation,

[0053] As Figure 6 The utility model discloses an embodiment, preheating assembly 116 including the even solid of multiple installation crossbeam 126 between rear end side board 113 along the length direction, is set up with installation base plate 127 on installation crossbeam 126, and the equidistance installation groove 128 of installation base plate 127 lower end surface is set up with the installation crossbeam 126 card joint cooperation,

[0054] The utility model discloses an embodiment, preheating assembly 116 including the even solid of multiple installation crossbeam 126 between rear end side board 113 along the length direction, is set up with installation base plate 127 on installation crossbeam 126, and the equidistance installation groove 128 of installation base plate 127 lower end surface is set up with the installation crossbeam 126 card joint cooperation,

[0055] As Figure 6 The utility model discloses an embodiment, preheating assembly 116 including the even solid of multiple installation crossbeam 126 between rear end side board 113 along the length direction, is set up with installation base plate 127 on installation crossbeam 126, and the equidistance installation groove 128 of installation base plate 127 lower end surface is set up with the installation crossbeam 126 card joint cooperation,

[0056] The utility model discloses an embodiment, preheating assembly 116 including the even solid of multiple installation crossbeam 126 between rear end side board 113 along the length direction, is set up with installation base plate 127 on installation crossbeam 126, and the equidistance installation groove 128 of installation base plate 127 lower end surface is set up with the installation crossbeam 126 card joint cooperation,

[0057] The PTFE coating 131 has low surface energy and wear resistance, which reduces the friction resistance between the belt body 100 and the coating, reduces the driving energy consumption, and guarantees the conveying continuity; in addition, the synergistic effect of the multi-layer structure uniformly conducts heat from the electrothermal film to the PTFE coating 131 through the silica gel layer, and then efficiently transfers the heat to the mineral aggregate through the closely fitted belt body 100, which significantly improves the preheating uniformity and heat energy utilization rate, and the overall structure is wear-resistant and anti-aging, which prolongs the service life of the preheating assembly 116 and reduces the maintenance frequency.

[0058] In the embodiment of the utility model, the belt body 100 includes glass fiber base cloth 132, the inner side of glass fiber base cloth 132 is coated with PTFE coating 131, the outer side of glass fiber base cloth 132 is coated with ceramic particle reinforced polyurethane coating 133, and the ceramic particle reinforced polyurethane coating 133 includes polyurethane matrix and aluminum oxide or silicon carbide ceramic particle mixture.

[0059] As shown in Figure 6 The glass fiber base cloth 132 serves as the core reinforcing layer and has high tensile strength and high temperature resistance, which ensures the dimensional stability and deformation resistance of the belt body 100 during the conveying of high-temperature asphalt mixture; the inner PTFE coating 131 significantly reduces the sliding friction loss between the belt body 100 and the roller and the preheating assembly 116 through its low friction coefficient and self-lubricating properties, and inhibits the adhesion of asphalt residues, thereby prolonging the cleaning and maintenance cycle of the belt body 100.

[0060] The outer ceramic particle reinforced polyurethane coating 133 forms a composite surface with flexibility and impact resistance through the synergistic effect of the high elasticity of the polyurethane matrix and the high hardness and wear resistance of the ceramic particles (aluminum oxide or silicon carbide), which can effectively buffer material impact and reduce surface scratches, and significantly improve the wear resistance and high temperature resistance of the coating through the dispersion strengthening of the ceramic particles, especially suitable for the high temperature and abrasion environment of mineral aggregate; in addition, the differential design of the inner and outer coatings balances between reducing internal friction resistance and enhancing external resistance, and cooperates with the rigid support of the glass fiber base cloth 132 to meet the requirements of lightweight, long service life and efficient conveying, which significantly improves the reliability and durability of the belt body 100 under complex working conditions.

[0061] In the embodiment of the utility model, the front end side plate 104 is provided with a tensioning and adjusting assembly 137, the tensioning and adjusting assembly 137 includes an adjusting shaft 138 rotatably arranged on the front end side plate 104, one end of the adjusting shaft 138 extends out of the front end side plate 104 and is connected with an adjusting motor 139, an adjusting transmission rod 140 is fixedly arranged on the adjusting shaft 138, and an adjusting roller 141 abuttingly cooperates with the transmission chain 125 is rotatably arranged on the adjusting transmission rod 140.

[0062] As shown in Figure 6As shown, by adjusting the motor 139 to drive the adjustment shaft 138 to rotate, the adjustment transmission rod 140 fixed thereon is synchronously swung, and then the adjustment roller 141 is displaced along a preset track and dynamically abuts against the transmission chain belt 125, so that the real-time and accurate regulation of the tension of the transmission chain belt 125 is realized, and the problems of tooth skipping, slipping or uneven tension caused by chain slack are avoided.

[0063] The abutment design of the adjustment roller 141 and the transmission chain belt 125 in combination with the lever effect of the adjustment transmission rod 140 can exert radial pressure on the chain without interrupting the operation of the equipment, automatically eliminate the elongation of the chain belt caused by wear or thermal expansion through mechanical compensation, and ensure that the transmission system is always in the best tension state; in addition, the adjustable angle range of the adjustment shaft 138 in combination with the closed-loop control of the adjustment motor 139 can adapt to the tension requirement under different load or speed conditions, reduce the frequency of manual intervention, and the rotary installation mode of the adjustment roller 141 minimizes the sliding friction with the chain belt when tension is applied, reduces additional energy consumption and component wear, and the overall structure has dynamic response capability and long-term stability, significantly improves the reliability of the transmission system and prolongs the service life of the chain and the roller.

[0064] In the embodiment of the utility model, the oblique stop plate 142 is arranged on the opposite face of the front end side plate 104 and the rear end side plate 113, and the belt body operation groove for accommodating the belt body 100 is formed in the oblique stop plate 142.

[0065] As shown in Figure 1 and 6 The oblique stop plate 142 fixed on the front end and the rear end side plate 113 wraps and limits the belt body 100 through the belt body operation groove, the oblique design makes the belt body 100 naturally guided along the preset path during operation, effectively inhibits the risk of transverse deviation or derailment, and the linear contact between the inclined surface and the edge of the belt body 100 reduces the friction area, avoiding excessive wear of the side edge of the belt body 100.

[0066] The precise slotting size of the belt body operation groove is adapted to the thickness and thermal expansion characteristics of the belt body 100, which allows the belt body 100 to float slightly in the groove to relieve thermal stress deformation, and limits its longitudinal movement through the rigid constraint of the groove wall, ensuring stable transmission trajectory; in addition, the asymmetric contact design of the oblique stop plate 142 and the belt body 100 can disperse the vibration energy of the belt body 100, reduce the operating noise and reduce the structural fatigue of the side plate connection, and the modular stop plate structure facilitates quick disassembly, maintenance or replacement of the groove type according to the specifications of the belt body 100, improves the maintainability and working condition adaptability of the equipment, and finally realizes long-period smooth operation and life extension of the belt body 100.

[0067] In the embodiment of the utility model, the rear end of the rear end side plate 113 is fixedly provided with a feeding inclined plate 144 which is in abutting cooperation with the head of the belt body 100.

[0068] As Figure 1 and 6 As shown in the rear end of the rear end plate 113 fixedly installed with the feeding inclined plate 144 and the belt body 100 head precision butt joint, through the inclined surface transition design guide mineral material from the belt body 100 end gently slide to the mixing device, avoid the problem of splash, segregation or accumulation caused by direct free falling material; the inclination angle of the inclined plate and the running speed of the belt body 100 are matched, so as to ensure the continuity and controllability of the material conveying track, reduce the particle breakage or temperature loss caused by impact, at the same time, the seamless connection structure of the inclined plate and the belt body 100 effectively seals the gap at the end of the conveying, prevents the leakage of fine aggregate and heat loss; in addition, the rigid fixed mode of the feeding inclined plate 144 enhances the overall bearing strength of the rear end plate 113, suppresses the vibration or deviation of the tail of the belt body 100 caused by material impact, and reduces the equipment running resistance by optimizing the flow path, which improves the material transfer efficiency and process quality, and prolongs the service life of the belt body 100 and the butt joint equipment.

[0069] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A bituminous material feeding device, characterized in that, The device comprises a belt body (100), a front-end conveying assembly (101), a rear-end conveying assembly (102) and a connecting plate (103) arranged between the front-end conveying assembly (101) and the rear-end conveying assembly (102); The front-end conveying assembly (101) comprises front-end side plates (104) arranged on both sides of the belt body (100), and the front end, the middle and the rear end of each of the front-end side plates (104) are respectively provided with a first roller (105), a driving roller (106) and a second roller (107); a transmission member (108) is connected between the first roller (105) and the driving roller (106) to drive the first roller (105) to rotate; and a power motor member (109) is fixedly arranged on the outer side of the front-end side plate (104) to drive the driving roller (106); The second roller (107) comprises a second rotating shaft (110) and a second roller body (111) rotatably arranged on the second rotating shaft (110); the second rotating shaft (110) is fixedly installed at the rear end of the front-end side plate (104) and extends outward from the front-end side plate (104); and the second rotating shaft (110) is rotatably connected to the upper end of the connecting plate (103); The rear-end conveying assembly (102) comprises rear-end side plates (113) arranged on both sides of the belt body (100); the rear end of each of the rear-end side plates (113) is provided with a third roller (114); the front end of each of the rear-end side plates (113) is fixedly arranged on the rear end of the connecting plate (103); the lower end of the connecting plate (103) is fixedly provided with a fourth roller (115); and the belt body (100) is tightly wound around the front end of the first roller (105), the upper end and the lower end of the driving roller (106), the upper end of the second roller (107), the rear end of the third roller (114) and the upper end of the fourth roller (115); A preheating assembly (116) is fixedly arranged on the rear-end side plate (113) and abuts against the belt body (100).

2. A bituminous material feeding device according to claim 1, characterized in that An arc-shaped slot (117) is formed in the front end of the connecting plate (103); and a guide rod (118) is fixedly arranged on the outer wall of the front-end side plate (104) and slidably arranged in the arc-shaped slot (117).

3. A bituminous material feeding device according to claim 2, characterized in that The first roller (105) comprises a first rotating shaft (119) rotatably arranged on the front-end side plate (104); a first outer ring cylinder (120) and a first inner ring cylinder (121) are fixedly arranged on the first rotating shaft (119); the first outer ring cylinder (120) is arranged at both ends of the first inner ring cylinder (121) and has a larger diameter than the first inner ring cylinder (121); The driving roller (106) comprises a driving rotating shaft (122) rotatably arranged on the front-end side plate (104); one end of the driving rotating shaft (122) extends out of the front-end side plate (104) and is connected with the working shaft of the power motor member (109); a driving outer ring cylinder (123) and a driving inner ring cylinder (124) are fixedly arranged on the driving rotating shaft (122); the driving outer ring cylinder (123) is arranged at both ends of the driving inner ring cylinder (124) and has a larger diameter than the driving inner ring cylinder (124); and The transmission chain belt (125) is connected between the driving inner cylinder (124) and the first inner cylinder (121), and the front end of the first outer cylinder (120), the upper end and the lower end of the driving outer cylinder (123) are respectively abutted with the belt body (100).

4. A bituminous material feeding device according to any one of claims 1-3, characterized in that The preheating assembly (116) comprises a plurality of mounting beams (126) uniformly fixed between the rear end side plates (113) along the length direction, and a mounting base plate (127) is arranged on the mounting beams (126), and a mounting groove (128) in the mounting base plate (127) is in clamping cooperation with the mounting beams (126).

5. A bituminous material feeding device according to claim 4, characterized in that The upper end surface of the mounting base plate (127) is fixedly provided with a polyimide electrothermal film (129), the upper end surface of the polyimide electrothermal film (129) is covered with a heat-conducting silica gel layer (130), and the heat-conducting silica gel layer (130) is coated with a PTFE coating layer (131), and the belt body (100) is attached to the PTFE coating layer (131).

6. An asphalt mixture feeding device according to claim 5, characterized in that The belt body (100) comprises a glass fiber base cloth (132), the inner side of the glass fiber base cloth (132) is coated with a PTFE coating layer (131), and the outer side of the glass fiber base cloth (132) is coated with a ceramic particle reinforced polyurethane coating layer (133), and the ceramic particle reinforced polyurethane coating layer (133) comprises a polyurethane matrix and an aluminum oxide or silicon carbide ceramic particle mixture.

7. A bituminous material feeding device according to claim 1 or 2 or 3 or 5 or 6, characterized in that, The front end side plate (104) is provided with a tension adjusting assembly (137), the tension adjusting assembly (137) comprises an adjusting shaft (138) rotatably arranged on the front end side plate (104), one end of the adjusting shaft (138) extends out of the front end side plate (104) and is connected with an adjusting motor (139), and an adjusting transmission rod (140) is fixedly arranged on the adjusting shaft (138), and the adjusting transmission rod (140) is rotatably provided with an adjusting roller (141) in abutting cooperation with the transmission chain belt (125).

8. A bituminous material feeding device according to claim 7, characterized in that The front end side plate (104) and the rear end side plate (113) are respectively provided with inclined stop plates (142) on the opposite surfaces, and the inclined stop plates (142) are provided with belt operation grooves for accommodating the belt body (100).

9. An asphalt mixture feeding device according to claim 8, characterized in that The rear end of the rear end side plate (113) is fixedly provided with a feeding inclined plate (144) in abutting cooperation with the head of the belt body (100).

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