A gravel screening machine for a road paver

Abstract

The present invention relates to the technical field of pavers, and discloses a gravel screening machine for a road paver, including a feeding element, which includes a feeding box, a cover plate connected to the feeding box, a stirring motor connected to the feeding box, vibrators symmetrically connected to the feeding box, and a heater connected to the feeding box; a stirring element, which includes inclined chute boxes symmetrically connected to the feeding box, and a stirring assembly arranged on the inclined chute boxes. Filtration is carried out through the filter groove plate to avoid the problem of blockage caused by foreign objects. The diversion groove plate is heated by the arc-shaped baffle, so that the diversion groove plate heats and dries the materials falling into it, avoiding adhesion to the inner wall of the arc-shaped baffle during the process of falling into the arc-shaped baffle, preventing the occurrence of bridging and blockage, thereby improving the discharging efficiency, improving the quality of road paving at the same time, avoiding situations such as rework, and being beneficial to cost saving.

Description

Technical Field

[0001] The present invention relates to the technical field of pavers, and in particular to a gravel screening machine for a road paver. Background Art

[0002] In recent years, when feeding materials to a paver, due to the high temperature of the gravel slurry mixture in the liquid adding system and the incomplete sealing of the storage box, a large amount of steam is generated, resulting in high humidity. Therefore, the gravel slurry inside the paver will also form plates and adhere due to the water vapor in the air. Since the plates are suspended above the spiral blades after forming and there are foreign matters in the gravel slurry, the gaps between the spiral blades cannot be effectively filled, and thus the problem of ineffective feeding occurs. In addition, if there is no effective restriction on the specifications of the gravel during use, it will affect the quality of road paving, resulting in rework and other situations, which is not conducive to cost saving. Summary of the Invention

[0003] In view of the problems of plate formation and blockage by foreign matters in the existing gravel screening machine for road pavers, which lead to abnormal feeding, the present invention is proposed.

[0004] Therefore, the present invention provides a gravel screening machine for a road paver, and its purpose is to solve the problems of plate formation and blockage by foreign matters inside, and avoid the occurrence of abnormal feeding.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: including,

[0006] A feeding element, including a feeding box, a cover plate connected to the feeding box, a stirring motor connected to the feeding box, vibrators symmetrically connected to the feeding box, and a heater connected to the feeding box;

[0007] A stirring element, including inclined trough boxes symmetrically connected to the feeding box, and a stirring assembly arranged on the inclined trough boxes;

[0008] A filtering element, including sliding plates symmetrically penetrating and slidingly connected to the inclined trough boxes, and a filtering assembly arranged on the sliding plates;

[0009] A conveying element, including a feeding trough plate slidingly connected below the inclined trough boxes, and a conveying assembly arranged below the feeding trough plate.

[0010] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the stirring assembly includes a first fixing rod rotatably connected between the two chute boxes, stirring plates arranged in a linear array and connected to the first fixing rod, a rectangular plate slidably connected to the chute box, eccentric discs symmetrically connected to the first fixing rod, a first chute opened on the rectangular plate, second chutes symmetrically opened on the first chute, and annular plates symmetrically connected to the eccentric discs.

[0011] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the annular plate is slidably connected inside the second chute, and the eccentric disc is slidably connected inside the first chute.

[0012] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the first fixing rod is fixedly connected to the outer side of the center of the eccentric disc, and the first fixing rod is connected to the driving end of the stirring motor.

[0013] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the filtering assembly includes a filtering groove plate connected to the sliding plate, piston plates arranged in a linear array and connected to the filtering groove plate, third chutes symmetrically opened on the chute box, springs symmetrically connected to the third chutes, and a second abutting plate connected to the springs.

[0014] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: one end of the sliding plate away from the filtering groove plate is fixedly connected to the rectangular plate, and the second abutting plate is slidably connected inside the third chute.

[0015] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: inclined surfaces are arranged on the sides of the second abutting plate close to the sliding plate, and the second abutting plate abuts against the sliding plate.

[0016] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the conveying assembly includes a second fixing rod rotatably penetrating through the blanking box, an arc-shaped baffle connected to the second fixing rod, a diversion groove plate connected to the blanking chute plate, diversion grooves arranged in a linear array and opened on the diversion groove plate, and fourth chutes arranged in a linear array and opened on the diversion groove plate.

[0017] As a preferred solution of the gravel screening machine for the road paver described in the present invention, wherein: the second fixing rod is rotatably connected to the heater, the blanking chute plate is provided with a feed hole, and the size of the feed hole opened on the blanking chute plate is adapted to the size of the piston plate.

[0018] As a preferred embodiment of the gravel screening machine for the paver described in the present invention, wherein: the interior of the blanking chute plate is in communication with the interior of the diversion groove plate, the size of the diversion groove is adapted to the size of the gap between the diversion grooves, and the size of the fourth chute is adapted to the size of the arc-shaped baffle.

[0019] Advantages of the present invention: The filtration groove plate is used for filtration, avoiding the problem of blockage caused by foreign objects. The arc-shaped baffle heats the diversion groove plate, so that the diversion groove plate heats and dries the materials falling into it, avoiding adhesion to the inner wall of the arc-shaped baffle during the process of falling into the arc-shaped baffle, preventing the occurrence of bridging and blockage, thereby improving the discharging efficiency, improving the quality of road paving, avoiding rework and other situations, and being beneficial to cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the gravel screening machine for the paver of the present invention.

[0022] Figure 2 It is a schematic diagram of the positional relationship between the blanking box and the inclined chute box of the gravel screening machine for the paver of the present invention.

[0023] Figure 3 It is a schematic diagram of the internal structure of the stirring assembly of the gravel screening machine for the paver of the present invention.

[0024] Figure 4 It is a schematic diagram of the positional relationship between the first chute and the second chute of the gravel screening machine for the paver of the present invention.

[0025] Figure 5 It is a schematic diagram of the internal structure of the filtration assembly of the gravel screening machine for the paver of the present invention.

[0026] Figure 6 It is a schematic diagram of the internal structure of the conveying assembly of the gravel screening machine for the paver of the present invention.

[0027] Figure 7 It is a schematic diagram of the positional relationship between the arc-shaped baffle and the diversion groove of the gravel screening machine for the paver of the present invention.

[0028] Figure 8Schematic diagram of the positional relationship between the diversion groove plate and the chute four of the gravel screening machine for the road paver of the present invention. Detailed implementation manners

[0029] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the drawings of the specification.

[0030] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0032] Thirdly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width and depth should be included.

[0033] Embodiment 1, referring to Figures 1 to 8 As shown, it is the first embodiment of the present invention, providing a gravel screening machine for a road paver. This device includes

[0034] The feeding element 100 includes a feeding box 101, a cover plate 102 connected to the feeding box 101, a stirring motor 103 connected to the feeding box 101, vibrating hammers 104 symmetrically connected to the feeding box 101, and a heater 105 connected to the feeding box 101, which avoids adhesion to the inner wall of the feeding box 101;

[0035] The stirring element 200 includes an inclined chute box 201 symmetrically connected to the feeding box 101, and a stirring assembly 202 arranged on the inclined chute box 201, which avoids the occurrence of caking;

[0036] The filtering element 300 includes sliding plates 301 symmetrically penetrating and slidingly connected to the inclined chute box 201, and a filtering assembly 302 arranged on the sliding plates 301, which avoids blockage caused by foreign objects inside;

[0037] The conveying element 400 includes a blanking chute plate 401 slidably connected below the inclined chute box 201 and a conveying assembly 402 arranged below the blanking chute plate 401, which helps with normal blanking.

[0038] During use, the operator adjusts the blanking element 100 to stir the material, preventing caking and blockage. Then, the vibrator 104 knocks on the outer wall of the blanking box 101 to prevent adhesion to the inner wall. Next, the filtering element 300 is adjusted to filter foreign objects inside, preventing blockage caused by foreign objects. Finally, the heater 105 is adjusted to heat the conveying element 400, preventing ineffective filling due to damp caking.

[0039] Embodiment 2, refer to Figures 1 to 6 As shown, this is the second embodiment of the present invention. The difference from the first embodiment is that the stirring assembly 202 includes a first fixing rod 202a rotatably connected between two inclined chute boxes 201, stirring plates 202b arranged in a linear array and connected to the first fixing rod 202a, a rectangular plate 202c slidably connected to the inclined chute box 201, eccentric discs 202d symmetrically connected to the first fixing rod 202a, a first chute 202c-1 opened on the rectangular plate 202c, second chutes 202c-2 symmetrically opened on the first chute 202c-1, and annular plates 202d-1 symmetrically connected to the eccentric discs 202d. The annular plates 202d-1 are slidably connected inside the second chutes 202c-2, and the eccentric discs 202d are slidably connected inside the first chute 202c-1. The first fixing rod 202a is fixedly connected to the outer side of the center position of the eccentric disc 202d, and the first fixing rod 202a is connected to the driving end of the stirring motor 103. The stirring assembly 202 stirs and breaks up the caked material, preventing blockage during blanking and improving the working stability of the blanking machine.

[0040] Compared with Embodiment 1, further, the filtering assembly 302 includes a filtering groove plate 302a connected to the sliding plate 301, piston plates 302b arranged in a linear array and connected to the filtering groove plate 302a, third chutes 302c symmetrically opened on the inclined chute box 201, springs 302d symmetrically connected to the third chutes 302c, and second abutting plates 302e connected to the springs 302d. One end of the sliding plate 301 away from the filtering groove plate 302a is fixedly connected to the rectangular plate 202c, and the second abutting plates 302e are slidably connected inside the third chutes 302c. The sides of the second abutting plates 302e close to the sliding plate 301 are provided with inclined surfaces, and the second abutting plates 302e abut against the sliding plate 301. The filtering assembly 302 filters and collects foreign objects inside, preventing the problem of jamming after foreign objects enter the transportation device.

[0041] During use, the personnel first put the material into the lower material box 101, and at this time, the stirring motor 103 drives the fixed rod 202a to rotate inside the lower material box 101, so that the fixed rod 202a drives the stirring plate 202b and the eccentric disc 202d to rotate synchronously, so that the stirring plate 202b stirs the material put in, and beats the material put in by the stirring plate 202b, thereby preventing agglomeration due to the humid environment. At the same time, the personnel cover the cover plate 102 at the feeding port of the lower material box 101 to avoid splashing during the stirring process. When the material put in is accumulated at the bottom of the lower material box 101 and the filter groove plate 302a is buried;

[0042] At the same time, the fixed rod 202a drives the eccentric disc 202d to rotate inside the chute box 201, so that the eccentric disc 202d rotates inside the slide groove 202c-1, and drives the annular plate 202d-1 to rotate inside the slide groove 202c-2 through the eccentric disc 202d. Since the fixed rod 202a is fixedly connected to the upper center position of the eccentric disc 202d, the fixed rod 202a drives the eccentric disc 202d to rotate eccentrically with the fixed rod 202a as the axis, so that the eccentric disc 202d drives the rectangular plate 202c to reciprocate up and down inside the chute box 201, and at the same time, the rectangular plate 202c drives the slide plate 301 to move forward. The sliding plate 301 moves back and forth inside the chute 302c and the sliding plate 301 moves back and forth inside the chute 302c under the elastic action of the spring 302d, thereby avoiding entering the interior of the chute box 201 and preventing the problem of blockage caused by entering the interior of the chute box 201. At the same time, the sliding plate 301 drives the filter groove plate 302a to move back and forth inside the discharge box 101, and filters the foreign matter inside the discharge box 101, and also presses the bottom of the filter groove plate 302a. When the filter groove plate 302a moves back and forth, the filter groove plate 302a drives the piston plate 302b to move back and forth synchronously.

[0043] The remaining structures are the same as those of Example 1.

[0044] Example 3, reference Figures 1 to 8As shown, this is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the conveying component 402 includes a second fixed rod 402a rotatably connected through the blanking box 101, an arc-shaped baffle 402b connected to the second fixed rod 402a, a diversion groove plate 402c connected to the blanking chute plate 401, diversion grooves 402d arranged in a linear array on the diversion groove plate 402c, and a fourth chute 402e arranged in a linear array on the diversion groove plate 402c. The second fixed rod 402a is rotatably connected to the heater 105. The blanking chute plate 401 is provided with a feed hole, and the size of the feed hole provided on the blanking chute plate 401 is adapted to the size of the piston plate 302b. The inside of the blanking chute plate 401 is communicated with the inside of the diversion groove plate 402c. The size of the diversion groove 402d is adapted to the gap size between the diversion grooves 402d. The size of the fourth chute 402e is adapted to the size of the arc-shaped baffle 402b.

[0045] During the use process, while the filtering groove plate 302a drives the piston plate 302b to reciprocate up and down, the piston plate 302b indirectly blocks the feed hole provided on the blanking chute plate 401. When the piston plate 302b no longer blocks the feed hole provided on the blanking chute plate 401, when the filtering groove plate 302a moves downward, it will squeeze the material at the bottom of the filtering groove plate 302a, so that the material at the bottom of the filtering groove plate 302a enters the inside of the blanking chute plate 401 through the feed hole provided on the blanking chute plate 401, and then makes the material enter the bottom of the arc-shaped baffle 402b through the diversion groove 402d and contact the arc-shaped baffle 402b. When the heater 105 starts to work, at this time, the heater 105 starts to heat the second fixed rod 402a, so that the heat inside the second fixed rod 402a is transferred to the inside of the arc-shaped baffle 402b, and then the heat inside the arc-shaped baffle 402b is transferred to the inside of the diversion groove plate 402c, thereby realizing the heating and drying of the material entering the gap between the arc-shaped baffles 402b. By heating the diversion groove plate 402c through the arc-shaped baffle 402b, the diversion groove plate 402c heats and dries the falling material, avoiding the adhesion of the material to the inner wall of the arc-shaped baffle 402b during the process of falling into the arc-shaped baffle 402b, preventing the occurrence of bridging and blockage, and thus improving the discharging efficiency of the material.

[0046] The remaining structures are the same as those in Embodiment 2.

[0047] Importantly, it should be noted that the construction and arrangement of the present invention shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes, and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the positions of the elements may be inverted or otherwise changed, and the nature, number, or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means plus function" clauses are intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention).

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A crushed stone screening machine for a road paver, characterized in that: include, A material discharge element (100), comprising a material discharge box (101), a cover plate (102) connected to the material discharge box (101), a stirring motor (103) connected to the material discharge box (101), a rapper (104) symmetrically connected to the material discharge box (101), and a heater (105) connected to the material discharge box (101); The stirring element (200) comprises a chute box (201) symmetrically connected to the discharge box (101), and a stirring assembly (202) arranged on the chute box (201); the stirring assembly (202) comprises a fixed rod (202a) rotatably connected between the two chute boxes (201), a stirring plate (202b) connected to the fixed rod (202a) in a linear array, a rectangular plate (202c) slidably connected to the chute box (201), an eccentric disk (202d) symmetrically connected to the fixed rod (202a), a chute (202c-1) opened on the rectangular plate (202c), a chute (202c-2) symmetrically opened on the chute (202c-1), and an annular plate (202d-1) symmetrically connected to the eccentric disk (202d); The annular plate (202d-1) is slidably connected to the interior of the second slide groove (202c-2), and the eccentric disc (202d) is slidably connected to the interior of the first slide groove (202c-1); The fixing rod 1 (202a) is fixedly connected to the outer side of the center position of the eccentric disc (202d), and the fixing rod 1 (202a) is connected to the driving end of the stirring motor (103); The filter element (300) comprises a slide plate (301) symmetrically penetrating and slidably connected to the chute box (201), and a filter assembly (302) arranged on the slide plate (301); the filter assembly (302) comprises a filter groove plate (302a) connected to the slide plate (301), a piston plate (302b) connected to the filter groove plate (302a) arranged in a linear array, a slide groove three (302c) symmetrically opened on the chute box (201), a spring (302d) symmetrically connected to the slide groove three (302c), and a contact plate two (302e) connected to the spring (302d); One end of the slide plate (301) away from the filtering groove plate (302a) is fixedly connected to the rectangular plate (202c), and the second abutment plate (302e) is slidably connected to the inside of the third slide groove (302c); A side of the second contact plate (302e) close to the slide plate (301) is provided with an inclined surface, and the second contact plate (302e) contacts the slide plate (301); The conveying element (400) comprises a material chute plate (401) slidably connected to the bottom of the chute box (201), and a conveying assembly (402) arranged below the material chute plate (401); the conveying assembly (402) comprises a second fixing rod (402a) rotatably connected to the material chute box (101), an arc-shaped baffle (402b) connected to the second fixing rod (402a), a guide groove plate (402c) connected to the material chute plate (401), guide grooves (402d) arranged in a linear array and provided on the guide groove plate (402c), and four slide grooves (402e) arranged in a linear array and provided on the guide groove plate (402c); The second fixing rod (402a) is rotatably connected to the heater (105), the feed chute plate (401) is provided with a feed hole, and the size of the feed hole provided in the feed chute plate (401) is adapted to the size of the piston plate (302b); The interior of the discharge chute plate (401) is connected to the interior of the guide groove plate (402c), the size of the guide groove (402d) is matched with the size of the gap between the guide grooves (402d), and the size of the slide groove four (402e) is matched with the size of the arc baffle (402b).

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