CN111411567A - Bituminous paving adds heat engine - Google Patents
Bituminous paving adds heat engine Download PDFInfo
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- CN111411567A CN111411567A CN202010317371.8A CN202010317371A CN111411567A CN 111411567 A CN111411567 A CN 111411567A CN 202010317371 A CN202010317371 A CN 202010317371A CN 111411567 A CN111411567 A CN 111411567A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
Abstract
The invention discloses an asphalt pavement heater, which comprises a hot air heating wall, a front heating wall lifting mechanism, a rear heating wall lifting mechanism and a middle heating wall lifting mechanism, wherein the hot air heating wall is arranged below a rack; the combination of the front heating wall overturning mechanism, the rear heating wall overturning mechanism and the middle heating wall lifting mechanism is adopted, the lifting, amplitude changing and rotation operation state adjustment of the hot air heating wall is realized, the problem that the pavement heating machine cannot adjust the posture of the heating device in real time according to the adjustment of the size and the climbing angle of the curve in the market is solved, and the device has good adaptability to curve construction and climbing operation.
Description
Technical Field
The invention relates to an asphalt pavement heater, and belongs to the technical field of road maintenance equipment.
Background
The asphalt pavement heater is used for heating and softening the asphalt pavement, the in-situ heating technology is a core technology of in-situ thermal regeneration, and the heater of manufacturers at home and abroad at present mainly has the following defects:
(1) the pavement is heated unevenly, the asphalt material is easy to be scorched, and the environmental pollution is caused: the extensive high-power diesel hot air circulation heating type pavement heater in the market has the serious problem of uneven heating (horizontal and longitudinal), which is mainly reflected in that the middle temperature is high, the temperatures of two sides are low, the asphalt is easily scorched and deteriorated in the speed and temperature concentrated areas, and the serious environmental pollution problem is caused along with a large amount of toxic blue smoke;
(2) the adaptability of bend construction, climbing operation and the like is poor: the road surface heating machine in the market can not adjust the posture of the heating device in real time according to the adjustment of the size of the curve and the climbing angle, and the adaptability of curve operation, climbing operation and the like is poor; for example, in the heated air circulation heating device and the asphalt pavement heating machine thereof disclosed in earlier-applied patent/application No. 2018105707055, the heating device at the front part needs to be turned and folded during transition transportation to shield the view of a driver, so that potential safety hazards exist, in addition, in order to realize transportation without being ultrahigh and ultra-wide, the supporting wheel at the foremost end of the equipment needs to be removed during each transition transportation, the turning and folding of the high-temperature auxiliary wall body are realized manually, time and labor are wasted, and personal injuries such as foot smashing, scalding and the like are often caused;
(3) the electric components of the heating device are easy to be damaged at high temperature and have poor reliability: for example, in the hot air circulation heating device and the asphalt pavement heater thereof disclosed in the earlier-applied patent/application No. 2018105707055, hot blast stoves of the hot air heating device are arranged in a staggered manner, burners are arranged in the hot air circulation heating device, the ventilation and heat dissipation effects are poor, and electric components are easy to damage at high temperature;
(4) super-contour, overweight, overrun: the hot air heating machines in the market all adopt a single heating wall, the size is large, the diameter, the length and the like of a hearth of a hot air furnace are also large, the overall dimension of the whole machine is large, the weight exceeds the standard, and climbing and transition are difficult.
Therefore, a new heater for asphalt pavement is urgently needed to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an asphalt pavement heating machine, and solves the technical problem that the pavement heating machine in the prior art cannot adjust the posture of a heating device in real time according to the adjustment of the size of a curve and the climbing angle.
In order to solve the technical problem, the invention provides an asphalt pavement heater, which comprises a hot air heating wall arranged below a rack, and is characterized by also comprising a front heating wall lifting mechanism, a rear heating wall lifting mechanism and a middle heating wall lifting mechanism;
the hot air heating walls are arranged in a plurality of groups and are respectively arranged at the front part, the middle part and the rear part of the heater;
the hot air heating walls positioned at the front part and the rear part are hinged with the frame through the front and rear heating wall turning-up mechanisms so as to realize the lifting, amplitude variation and rotation operations of the hot air heating walls;
the hot air heating wall positioned in the middle is connected with the frame through the middle heating wall lifting mechanism so as to realize the lifting operation of the hot air heating wall.
Furthermore, four groups of hot air heating walls are arranged, wherein two groups of hot air heating walls are respectively arranged at the front part and the rear part of the heating machine, and the other two groups of hot air heating walls are arranged at the middle part of the heating machine in a back-to-back manner.
Further, the front and rear heating wall overturning and lifting mechanism comprises an outer fixing frame, an inner lifting frame, a turnover frame, a lifting oil cylinder, a turnover oil cylinder and a rotary oil cylinder;
the outer fixing frame is vertically arranged, the inner lifting frame is nested in the outer fixing frame, the turnover frame is transversely arranged, one end of the turnover frame is hinged to the inner lifting frame, and the other end of the turnover frame is fixedly connected with the hot air heating wall;
the cylinder end and the piston rod end of the lifting oil cylinder are respectively fixed on the outer fixing frame and the inner lifting frame, and the extension and contraction of the piston rod of the lifting oil cylinder can drive the inner lifting frame to vertically move up and down along the outer fixing frame, so that the hot air heating wall is driven to lift;
the cylinder end and the piston rod end of the turnover oil cylinder are respectively fixed on the inner lifting frame and the turnover frame, and the expansion of the piston rod of the turnover oil cylinder can drive the turnover frame to rotate around a hinged point with the inner lifting frame so as to drive the hot air heating wall to turn;
the cylinder end and the piston rod end of the rotary oil cylinder are respectively fixed on the rack and the external fixing frame, and the external fixing frame can be driven by the extension and contraction of the piston rod of the rotary oil cylinder to rotate left and right around a hinged point with the rack, so that the hot air heating wall is driven to rotate.
Furthermore, the middle heating wall lifting mechanism comprises an outer sleeve, an inner sleeve, a connecting seat and a hydraulic oil cylinder;
the top of the outer sleeve is fixed on the rack, the inner sleeve is nested in the outer sleeve, and the bottom of the inner sleeve is connected with the hot air heating wall through a connecting seat;
the cylinder end and the piston rod end of the hydraulic cylinder are respectively fixed on the outer sleeve and the inner sleeve, and the extension and contraction of the piston rod of the hydraulic cylinder can drive the inner sleeve to move up and down along the outer sleeve, so that the hot air heating wall is driven to lift.
Further, hot-blast heating wall includes the combustor, the hot-blast furnace, the air distribution box, main heating wall and vice heating wall, vice heating wall sets up two sets ofly, articulate respectively in main heating wall both sides, the combustor, main heating wall top is all arranged in to hot-blast furnace and air distribution box, the combustor is connected between two parties with the hot-blast furnace, the air distribution box is the U style of calligraphy, the middle import of air distribution box is connected with the terminal export of hot-blast furnace, the terminal export in both sides of air distribution box is linked together with main heating wall, circulating fan air inlet end is linked together with main heating wall, the air-out end is connected with the front end import of hot-.
Furthermore, the main heating wall comprises a wind protection cover, a flow guide plate and an air outlet net surface, the wind protection cover is funnel-shaped, an inlet arranged at the top of the wind protection cover is connected with an outlet of the air dividing box, the bottom of the wind protection cover is connected with the air outlet net surface to form a hot air cavity in the heating wall, and the flow guide plate is arranged in the hot air cavity; the hot air flows in through the inlet at the top of the air protection cover, and is scattered by the guide plate and uniformly distributed to the air outlet net surface for discharging.
Furthermore, the device also comprises a cooling pipeline, wherein the cooling pipeline is arranged above the main heating wall and is connected with the peripheral structure of the combustor.
Furthermore, the hot air heating device further comprises an auxiliary wall turnover mechanism, wherein the auxiliary wall turnover mechanism is positioned at the top of the hot air heating wall and is connected with the left and right auxiliary heating walls through a steel wire rope.
Furthermore, the hot air heating device also comprises a supporting wheel which is assembled on the hot air heating wall.
Further, the heating device also comprises a heat preservation device, and the heat preservation device is arranged at the tail part of the heating machine.
Furthermore, the heat preservation device comprises a heat preservation plate and universal supporting wheels, the front end of the heat preservation plate is hinged to the hot air heating wall at the rear end, and the rear end of the heat preservation plate is supported with the road surface through the universal supporting wheels.
Compared with the prior art, the invention has the following beneficial effects:
1) the unique combination of the front heating wall overturning and lifting mechanism, the rear heating wall overturning and lifting mechanism and the middle heating wall lifting mechanism is adopted, the adjustment of the lifting, amplitude variation and rotation operation states of the hot air heating wall is realized, and the device has good adaptability to curve construction and climbing operation;
2) by optimizing the arrangement structure of the hot air heating device and introducing the cooling pipeline design, the problems that the electric components of the existing hot air heating device are easy to damage at high temperature and poor in reliability are solved;
3) the novel technology of the auxiliary wall turnover mechanism and the multiple groups of supporting wheels is introduced, so that the automatic turnover and folding of the auxiliary wall are realized, the hot air heating device can be adjusted along with the floating operation of the unevenness of the asphalt pavement, the supporting wheels do not need to be removed in transition, and the operation efficiency is improved
4) The heat preservation device can realize the up-and-down floating and left-and-right rotating operation of the hot air heating wall, and can realize folding and folding along with 90-degree overturning of the hot air heating wall, and the heat preservation device is ingenious in structural design, energy-saving and efficient.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a view showing a construction state of a curve according to the present invention;
FIG. 5 is a state diagram of the transition transportation of the present invention;
FIG. 6 is a schematic view of the front and rear heating wall elevating mechanism of the present invention;
FIG. 7 is a schematic view of the mid-heating wall lifting mechanism of the present invention;
fig. 8 is a schematic view of the hot blast heating wall structure of the present invention.
In the figure: 1. a frame, 2, a traveling system, 3, a hot air heating wall, 3-1, a burner, 3-2, a hot air furnace, 3-3, a wind distribution box, 3-4, a main heating wall, 3-4-1, a wind protection cover, 3-4-2, a guide plate, 3-4-3, a gas outlet net surface, 3-5, an auxiliary heating wall, 3-6, an auxiliary wall turnover mechanism, 3-7, a cooling pipeline, 3-8, a circulating fan, 4, a front and rear heating wall turnover mechanism, 4-1, an outer fixing frame, 4-2, an inner lifting frame, 4-3, a turnover frame, 4-4, a lifting oil cylinder, 4-5, a turnover oil cylinder, 4-6, a rotary oil cylinder, 5, a middle heating wall lifting mechanism, 5-1, an outer sleeve, 5-2 and an inner sleeve, 5-3 parts of a connecting seat, 5-4 parts of a hydraulic oil cylinder, 6 parts of a cab, 7 parts of a power fuel tank, 8 parts of a hydraulic oil tank, 9 parts of an engine system, 10 parts of a power generation device, 11 parts of a heating fuel tank, 12 parts of supporting wheels, 13 parts of a heat preservation device, 13-1 parts of a heat preservation plate, 13-2 parts of universal supporting wheels, 14 parts of a green belt protection device.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present patent application, it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
In the description of the present patent, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present patent application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present patent can be understood in a specific case by those skilled in the art.
As shown in fig. 1 to 8, the asphalt pavement heating machine of the present invention includes a frame 1, a traveling system 2, a hot air heating wall 3, a front and rear heating wall lifting mechanism 4, a middle heating wall lifting mechanism 5, a cab 6, a power fuel tank 7, a hydraulic fuel tank 8, an engine system 9, a power generation device 10, a heating fuel tank 11, a support wheel 12, a heat preservation device 13, and a green belt protection device 14.
The lower part of the frame 1 is used for bearing the traveling system 2, the foremost part above the frame 1 is provided with a cab 6, the left, the middle and the right parts at the rear part of the cab 6 are respectively provided with a power fuel tank 7, a power generation device 10 and a hydraulic fuel tank 8, the rear part of the power generation device 10 is transversely provided with an engine system 9, and a heating fuel tank 11 is positioned at the rearmost end above the frame 1; the hot air heating walls 3 are arranged in four groups, two groups of hot air heating walls 3 are respectively arranged at the front part and the rear part of the machine and are hinged with the frame 1 through front and rear heating wall lifting mechanisms 4, and the other two groups of hot air heating walls 3 are arranged back to back and are arranged between front and rear axles of the traveling system 2 below the frame 1 and are connected with the frame 1 through a middle heating wall lifting mechanism 5; four groups of supporting wheels 12 are provided, and two groups of supporting wheels are respectively fixed on the front end surface of the front hot air heating wall 3 and the rear end surface of the rear hot air heating wall 3; the heat preservation device 13 is positioned at the rearmost part of the machine and is hinged with the hot air heating wall 3 at the rear part, and the green belt protection device 14 is provided with a plurality of groups which are respectively positioned at the left side and the right side of the four groups of hot air heating walls 3.
In order to overcome the problem that the pavement heating machine in the market cannot adjust the posture of the heating device in real time according to the adjustment of the size of the curve and the climbing angle, the invention introduces the unique front and rear heating wall overturning and lifting mechanism 4 and the middle heating wall lifting mechanism 5, and has good adaptability to curve construction and climbing operation.
The specific structure of the front and rear heating wall turning and lifting mechanism is shown in fig. 6: the front and rear heating wall overturning and lifting mechanism 4 comprises an outer fixing frame 4-1, an inner lifting frame 4-2, a turnover frame 4-3, a lifting oil cylinder 4-4, a turnover oil cylinder 4-5 and a rotary oil cylinder 4-6; the outer fixing frame 4-1 is nested with the inner lifting frame 4-2, the roll-over stand 4-3 is hinged with the inner lifting frame 4-2, and the other end of the roll-over stand 4-3 is fixedly connected with the hot air heating wall 3;
the cylinder end and the piston rod end of the lifting oil cylinder 4-4 are respectively fixed on the outer fixing frame 4-1 and the inner lifting frame 4-2, the cylinder end and the piston rod end of the overturning oil cylinder 4-5 are respectively fixed on the inner lifting frame 4-2 and the overturning frame 4-3, and the cylinder end and the piston rod end of the rotary oil cylinder 4-6 are respectively fixed on the rack 1 and the outer fixing frame 4-1;
the inner lifting frame 4-2 can vertically move up and down along the outer fixing frame 4-1 under the action of the lifting oil cylinder 4-4, and drives the turnover frame 4-3 and the hot air heating wall 3 to realize the adjustment of the height from the ground of 0-600 mm; under the action of the overturning oil cylinder 4-5, the overturning frame 4-3 can rotate around a hinge point with the inner lifting frame 4-2 and drive the hot air heating wall 3 to realize overturning at 0-90 degrees; under the action of the rotary oil cylinder 4-6, the outer fixing frame 4-1 can rotate left and right around a hinge point with the rack 1, and drives the inner lifting frame 4-2, the turnover frame 4-3 and the hot air heating wall 3 to integrally realize the 15-degree angle adjustment of left and right rotation. Therefore, the front and rear heating wall lifting mechanisms can realize the lifting, amplitude variation and rotation operations of the hot air heating wall.
The specific structure of the intermediate heating wall lifting mechanism is shown in fig. 7: the middle heating wall lifting mechanisms 5 are provided with two groups, are respectively positioned at the front end and the rear end of the middle hot air heating wall 3, and respectively comprise outer sleeves 5-1, inner sleeves 5-2, connecting seats 5-3 and hydraulic oil cylinders 5-4, and are respectively fixed on the rack through the outer sleeves 5-1, the outer sleeves 5-1 are nested with the inner sleeves 5-2, the four groups of connecting seats 5-3 are fixed at the front, rear, left and right sides of the hot air heating wall 3 and are respectively hinged with the inner sleeves 5-2, and the bottom of the inner sleeves are connected with the hot air heating wall through the connecting seats;
the cylinder end and the piston rod end of the hydraulic oil cylinder 5-4 are respectively fixed on the outer sleeve 5-1 and the inner sleeve 5-2, and under the action of the hydraulic oil cylinder 5-4, the inner sleeve 5-2 can move up and down along the outer sleeve 5-1 and drive the middle hot air heating wall 3 to realize the adjustment of the ground clearance height of 0-365 mm. Therefore, the lifting mechanism of the middle heating wall realizes the lifting operation state of the hot air heating wall.
When the pavement heater passes through a curve, referring to fig. 4, the hot air heating walls at the front part and the rear part lift, change the amplitude and rotate the hot air heating walls at the front part and the rear part through the front and rear heating wall lifting mechanisms, and the middle heating wall lifting mechanism lifts the hot air heating wall at the middle part; when the pavement heater is transported, referring to fig. 5, the front and rear hot air heating walls are lifted, amplitude-varied and rotated by the front and rear heating wall lifting mechanisms, and the middle heating wall lifting mechanism lifts the middle hot air heating wall.
Therefore, the invention adopts the unique combination of the front heating wall overturning and lifting mechanism and the middle heating wall lifting mechanism to realize the lifting, amplitude variation and rotation operation state adjustment of the hot air heating wall, overcomes the problem that the pavement heating machine in the market cannot adjust the posture of the heating device in real time according to the adjustment of the size and the climbing angle of the curve, and has good adaptability to curve construction and climbing operation.
Further, according to the hot air heating wall in the prior art, as disclosed in application number 2018105707055, the heating device is turned and folded during transition transportation to shield the view of a driver, so that the problem of potential safety hazards exists, the problem that the heating device is large in structural extensive size, cannot meet fine construction, and is poor in heating uniformity exists, the arrangement structure of the hot air heating device is optimized, the size of the heating wall is reduced, and the uniform heating of the pavement is realized through the structure of the air distributing box, the guide plate and the air outlet mesh plate.
The specific structure of the hot air heating wall is shown in fig. 7 and 8: the hot air heating wall 3 comprises a burner 3-1, a hot air furnace 3-2, an air distribution box 3-3, a main heating wall 3-4, an auxiliary heating wall 3-5, an auxiliary wall turnover mechanism 3-6 and a cooling pipeline 3-7, and two groups of auxiliary heating walls 3-5 are hinged to the left side and the right side of the main heating wall 3-4;
the burner and the hot blast stove are connected in a staggered way in the existing structure (see 2018105707055), and the staggered arrangement structure of the two groups of hot blast stoves is optimized, so that the number of the hot blast stoves is reduced, and the overall dimension of a hot blast heating wall is reduced, in the invention, the hot blast heating wall structure is shown in figure 8, the dimension of the heating wall is 2 meters, the burner 3-1, the hot blast stove 3-2 and the air distribution box 3-3 are all arranged above the main heating wall 3-4, the burner 3-1 is connected with the hot blast stove 3-2 in the middle, the burner 3-1 is arranged outside the upper part of the main heating wall 3-4, so that the air distribution box 3-3 has good ventilation and heat dissipation effects, the air distribution box 3-3 is U-shaped, the middle inlet of the air distribution box 3-3 is connected with the tail end outlet of the hot, the air inlet end of the circulating fan 3-8 is communicated with the main heating wall 3-4, and the air outlet end is connected with the front inlet of the hot blast stove 3-2.
According to the invention, by optimizing the arrangement structure of the hot air heating device, the size is reduced, and the heating wall only needs to be lifted to a certain height when the equipment is transferred, and does not need to be turned and folded.
The structure of the main heating wall is shown in figure 8 and comprises a wind protection cover 3-4-1, a flow guide plate 3-4-2 and an air outlet net surface 3-4-3, wherein the wind protection cover 3-4-1 is in a funnel shape, an inlet is formed in the top of the wind protection cover 3-4-1 and is connected with an outlet of the air distribution box 3-3, the bottom of the wind protection cover 3-4-1 is connected with the air outlet net surface 3-4-3 to form a hot air cavity in the heating wall, the flow guide plate 3-4-2 is arranged in the hot air cavity, hot air flows in through the inlet in the top of the wind protection cover 3-4-1, and then is scattered by the flow guide plate 3-4-2 and is uniformly distributed to the air outlet net surface 3-4-.
As shown in fig. 8, the hot air heating wall 3 works according to the following principle: the combustor 3-1 burns diesel fuel to generate high-temperature hot air in the hot blast stove 3-2, the high-temperature hot air enters the air distribution box 3-3 to be uniformly distributed left and right and conveyed into the air protection cover 3-4-1 of the main heating wall 3-4, the hot air is uniformly distributed and scattered through the guide plate 3-4-2, the hot air is finally sprayed to the asphalt pavement from the air outlet net surface 3-4-3 at a high speed and heated, and heated waste gas is conveyed into the hot blast stove 3-2 again under the action of the circulating fan 3-8, so that the cyclic utilization of the hot air is realized.
The hot air heating device optimizes the arrangement structure of the hot air heating device, and realizes uniform heating of the road surface by the air dividing box, the guide plate and the air outlet mesh plate structure, thereby improving the heating uniformity of the device and solving the problem of toxic blue smoke pollution in the construction process.
In order to overcome the problems that the electric components of the existing hot air heating device are easy to damage at high temperature and poor in reliability, the arrangement structure of the heating elements is optimized (the position of the burner is changed into an external position), an independent cooling pipeline is introduced, the convection heat dissipation effects of the burner, the hot blast stove and the like are improved, and the reliability of the device is improved.
The cooling pipelines 3-7 are provided with four groups (1 group of front and rear heating walls and 2 groups of middle heating walls), the cooling pipelines 3-7 of the front and rear hot air heating walls 3 are all arranged on the roll-over stand 4-3, and the cooling pipelines 3-7 of the middle hot air heating walls 3 are positioned on the upper plane of the stand 1 and respectively radiate heat of the four groups of burners 3-1. The cooling pipelines 3-7 are positioned at a high position and can absorb cold air with a lower relative temperature at the high position, and the cold air connected with the peripheral structure of the combustor is blown to the vicinity of the combustor, so that not only the cooling effect is achieved, but also sufficient combustion-supporting oxygen can be provided.
The design of a cooling pipeline is introduced, the problems that the electric components of the existing hot air heating device are easy to be damaged at high temperature and have poor reliability are solved,
furthermore, in order to overcome the defects that the supporting wheels at the most front end of the equipment are required to be detached during transition transportation of the existing pavement heating machine, the turning and folding of a high-temperature auxiliary wall body are realized manually, time and labor are wasted, and human injuries such as foot hitting and scalding are frequently caused.
Referring to FIG. 7: the two groups of auxiliary heating walls 3-5 are hinged to the left side and the right side of the main heating wall 3-4, the auxiliary wall turnover mechanisms 3-6 are positioned at the tops of the hot air heating walls 3 and are connected with the left and the right groups of auxiliary heating walls 3-5 through steel wire ropes, and the auxiliary wall turnover mechanisms can respectively realize 180-degree turnover of the left and the right groups of auxiliary heating walls 3-5 around hinged points with the main heating walls 3-4 through the steel wire ropes. The specific implementation of the turnover mechanism can be seen in the operation executing mechanism in the prior art 2018105696065.
The supporting wheels 12 are four groups and are respectively positioned on the front hot air heating wall and the rear hot air heating wall, namely two groups are respectively arranged on the front hot air heating wall and the rear hot air heating wall, and the supporting wheels 12 are positioned on the front vertical surface; and the supporting wheels 12 are positioned on the rear vertical surface at the position of the rear hot air heating wall.
The invention introduces the technology of the auxiliary wall turnover mechanism and a plurality of groups of supporting wheels, realizes the automatic turnover and folding of the auxiliary wall, and the hot air heating device can be adjusted along with the floating operation of the uneven asphalt pavement, so that the supporting wheels are not required to be dismantled, thereby improving the operation efficiency.
The overturning oil cylinder 4-5 has two operation modes of transport locking and operation floating, in the operation floating mode, the supporting wheel 12 can transmit supporting counterforce with the asphalt pavement to the hot air heating wall 3 when ascending, and the hot air heating wall 3 can rotate around the hinged center of the inner lifting frame 4-2 and the overturning frame 4-3 by depending on the gravity of the hot air heating wall 3 when descending, so that the floating operation adjustment of the hot air heating wall 3 along with the unevenness of the asphalt pavement is realized.
Furthermore, in order to improve the heating effect of the pavement heating machine, the special heat preservation device is additionally arranged, so that the pavement heating machine is ingenious in structural design, energy-saving and efficient.
The heat preservation device 13 comprises a heat preservation plate 13-1 and universal supporting wheels 13-2, the front end of the heat preservation plate 13-1 is hinged to the rear hot air heating wall 3, the rear end of the heat preservation plate is supported with the road surface through the universal supporting wheels 13-2, the heat preservation device 13 can simultaneously realize floating adjustment and left-right rotation operation of curve construction along with up-and-down floating and left-right rotation of the rear hot air heating wall 3, and can simultaneously realize folding and folding along with 90-degree overturning of the rear hot air heating wall 3.
The invention provides an asphalt pavement heater, which adopts the combination of a unique front heating wall lifting mechanism, a unique rear heating wall lifting mechanism and a unique middle heating wall lifting mechanism to realize the lifting, amplitude changing and rotation operation state adjustment of a hot air heating wall, overcomes the problem that the pavement heater on the market cannot adjust the posture of a heating device in real time according to the adjustment of the size of a curve and the climbing angle, and has good adaptability to curve construction and climbing operation; by optimizing the arrangement structure of the hot air heating device and introducing the design of a cooling pipeline, the problems that electrical components of the existing hot air heating device are easy to damage at high temperature and poor in reliability are solved, the heating uniformity of the device is improved by improving the structure of the main heating wall, and the problem of toxic blue smoke pollution in the construction process is solved; the novel technology of the auxiliary wall turnover mechanism and a plurality of groups of supporting wheels is introduced, the problem that the supporting wheels at the foremost end of equipment are required to be dismantled when the conventional pavement heating machine is transferred and transported is solved, automatic turnover and folding of the auxiliary wall are realized, the hot air heating device can be adjusted along with floating operation of uneven asphalt pavement, the supporting wheels are not required to be dismantled in the field, and the operation efficiency is improved; the heat preservation device can realize the up-and-down floating and left-and-right rotating operation of the hot air heating wall, and can realize folding and folding along with 90-degree overturning of the hot air heating wall, and the heat preservation device is ingenious in structural design, energy-saving and efficient.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An asphalt pavement heater comprises a hot air heating wall arranged below a rack, and is characterized by also comprising a front heating wall lifting mechanism, a rear heating wall lifting mechanism and a middle heating wall lifting mechanism;
the hot air heating walls are arranged in a plurality of groups and are respectively arranged at the front part, the middle part and the rear part of the heater;
the hot air heating walls positioned at the front part and the rear part are hinged with the frame through the front and rear heating wall turning-up mechanisms so as to realize the lifting, amplitude variation and rotation operations of the hot air heating walls;
the hot air heating wall positioned in the middle is connected with the frame through the middle heating wall lifting mechanism so as to realize the lifting operation of the hot air heating wall.
2. The asphalt pavement heating machine according to claim 1, wherein said hot air heating walls are provided in four groups, two groups of hot air heating walls being disposed at the front and rear portions of the heating machine, respectively, and the other two groups of hot air heating walls being disposed at the center portion of the heating machine back to back.
3. The asphalt pavement heating machine according to claim 1, wherein the front and rear heating wall lifting mechanism includes an outer fixing frame, an inner lifting frame, a roll-over frame, a lifting cylinder, a roll-over cylinder and a rotary cylinder;
the outer fixing frame is vertically arranged, the inner lifting frame is nested in the outer fixing frame, the turnover frame is transversely arranged, one end of the turnover frame is hinged to the inner lifting frame, and the other end of the turnover frame is fixedly connected with the hot air heating wall;
the cylinder end and the piston rod end of the lifting oil cylinder are respectively fixed on the outer fixing frame and the inner lifting frame, and the extension and contraction of the piston rod of the lifting oil cylinder can drive the inner lifting frame to vertically move up and down along the outer fixing frame, so that the hot air heating wall is driven to lift;
the cylinder end and the piston rod end of the turnover oil cylinder are respectively fixed on the inner lifting frame and the turnover frame, and the expansion of the piston rod of the turnover oil cylinder can drive the turnover frame to rotate around a hinged point with the inner lifting frame so as to drive the hot air heating wall to turn;
the cylinder end and the piston rod end of the rotary oil cylinder are respectively fixed on the rack and the external fixing frame, and the external fixing frame can be driven by the extension and contraction of the piston rod of the rotary oil cylinder to rotate left and right around a hinged point with the rack, so that the hot air heating wall is driven to rotate.
4. The asphalt pavement heating machine according to claim 1, wherein said intermediate heating wall elevating mechanism comprises an outer sleeve, an inner sleeve, a connecting seat and a hydraulic cylinder;
the top of the outer sleeve is fixed on the rack, the inner sleeve is nested in the outer sleeve, and the bottom of the inner sleeve is connected with the hot air heating wall through a connecting seat;
the cylinder end and the piston rod end of the hydraulic cylinder are respectively fixed on the outer sleeve and the inner sleeve, and the extension and contraction of the piston rod of the hydraulic cylinder can drive the inner sleeve to move up and down along the outer sleeve, so that the hot air heating wall is driven to lift.
5. The asphalt pavement heating machine according to claim 1, wherein the hot air heating walls include burners, hot air furnaces, air distribution boxes, a main heating wall and auxiliary heating walls, the auxiliary heating walls are provided in two groups and hinged to both sides of the main heating wall, the burners, the hot air furnaces and the air distribution boxes are all arranged above the main heating wall, the burners and the hot air furnaces are centrally connected, the air distribution boxes are U-shaped, the middle inlets of the air distribution boxes are connected with the tail end outlets of the hot air furnaces, the tail end outlets of both sides of the air distribution boxes are communicated with the main heating wall, the air inlet ends of the circulating fans are communicated with the main heating wall, and the air outlet ends of the circulating fans are connected with the front end inlets of.
6. The asphalt pavement heating machine according to claim 5, wherein the main heating wall comprises a wind protection cover, a flow guide plate and an air outlet net surface, the wind protection cover is funnel-shaped, an inlet is arranged at the top of the wind protection cover and is connected with an outlet of the air dividing box, the bottom of the wind protection cover is connected with the air outlet net surface and forms a hot air cavity inside the heating wall, and the flow guide plate is arranged in the hot air cavity; the hot air flows in through the inlet at the top of the air protection cover, and is scattered by the guide plate and uniformly distributed to the air outlet net surface for discharging.
7. The asphalt pavement heating machine according to claim 5, further comprising a cooling line disposed above the main heating wall and connected to the burner peripheral structure.
8. The asphalt pavement heating machine according to claim 5, further comprising a sub-wall turnover mechanism, said sub-wall turnover mechanism being disposed on top of the hot air heating wall and connected to the left and right sub-heating walls by a wire rope.
9. The asphalt pavement heating machine according to claim 1, further comprising support wheels mounted on the hot air heating wall.
10. The asphalt pavement heating machine according to claim 1, further comprising a heat-insulating device disposed at a rear portion of the heating machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317371.8A CN111411567A (en) | 2020-04-21 | 2020-04-21 | Bituminous paving adds heat engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317371.8A CN111411567A (en) | 2020-04-21 | 2020-04-21 | Bituminous paving adds heat engine |
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| CN111411567A true CN111411567A (en) | 2020-07-14 |
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| CN202010317371.8A Pending CN111411567A (en) | 2020-04-21 | 2020-04-21 | Bituminous paving adds heat engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160226A (en) * | 2020-08-20 | 2021-01-01 | 江苏集萃道路工程技术与装备研究所有限公司 | Intelligent control system and method for one-key construction of asphalt pavement heater |
| CN112942037A (en) * | 2021-01-27 | 2021-06-11 | 江苏集萃道路工程技术与装备研究所有限公司 | Heater and electrodeless variable width hot air heating device thereof |
-
2020
- 2020-04-21 CN CN202010317371.8A patent/CN111411567A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160226A (en) * | 2020-08-20 | 2021-01-01 | 江苏集萃道路工程技术与装备研究所有限公司 | Intelligent control system and method for one-key construction of asphalt pavement heater |
| CN112942037A (en) * | 2021-01-27 | 2021-06-11 | 江苏集萃道路工程技术与装备研究所有限公司 | Heater and electrodeless variable width hot air heating device thereof |
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