A road surface crushing system for a road surface cold recycling machine

Abstract

The utility model is a pavement crushing system for a pavement cold regeneration machine, belonging to the field of pavement cold regeneration machines. The technical solution is as follows: it includes a rotor cover shell, the two sides of the rotor cover shell are front material and rear material respectively, a first crusher is arranged on the front material, the first crusher includes a first installation, at least two first crushing units are arranged on the first installation, the first crushing unit includes a number of first crushing units evenly distributed along the length direction of the first installation, and the first crushing of different first crushing units is arranged in a staggered arrangement. By arranging multiple sets of staggered first crushing units, the staggered multiple rows of first crushing teeth can achieve that although some materials pass through a row of first crushing teeth with a larger spacing, the subsequent first crushing teeth will also contact the materials and perform crushing actions, reducing the risk that a single first crushing tooth cannot collide and crush some materials.

Description

Technical Field

[0001] The utility model relates to the technical field of road surface cold regeneration machines, in particular to a road surface crushing system for a road surface cold regeneration machine. Background Art

[0002] In the cold recycling construction of old pavement, the pavement cold recycling machine is the most mature, particularly efficient, environmentally friendly and widely used special product. Its working device is mainly composed of a milling rotor and a rotor cover. The working principle of the working device is: when the pavement cold recycling machine is operating, the milling rotor with a circular crushing cutter head rotates at a certain speed to mill, crush and mix the old pavement and smooth the surface of the material with the help of the tailgate of the rotor cover. The milled material continues to be used as a new roadbed material.

[0003] Due to the different early construction processes, damage conditions, roadbed thickness and materials of various old pavements, and the fact that the milling rotor head cannot be adjusted and a large space must be left between the milling rotor and the rotor cover, large block materials often appear in the medium after milling, resulting in excessive difference in material particle size after milling, which in turn causes the uniformity of material particles after milling to fail to meet the construction uniformity requirements of various grades of pavements, seriously affecting the service life of the newly built pavement. In order to reduce the phenomenon of excessive difference in material particle size after milling, the patent document with application number 202021118040.3 reduces the difference in material particle size after milling by adding a crushing device at the front door.

[0004] However, the above patent document still has certain problems when crushing large pieces of materials by providing crushing teeth on the sequentially arranged particle boards: when it is necessary to produce smaller materials after passing through the pavement cold regeneration machine, the spacing between the above particle boards needs to be adjusted, and when larger materials contact with denser particle boards, they will contact multiple particle boards, and the contact points or contact areas will increase compared to contacting only a single particle board. At this time, there will be multiple points of contact of larger materials during contact and collision, and multiple contact points will share the force between the particle boards. At this time, it is often impossible to complete the crushing, and the only option is to increase the spacing between the particle boards to reduce the contact area to complete normal crushing. However, due to the large spacing between the particle boards, the particle size of the materials after crushing is also too different. Utility Model Content

[0005] The utility model aims at the problems in the prior art and provides a pavement crushing system for a pavement cold regeneration machine which can effectively crush materials, thereby solving the problem in the prior art that crushing cannot be completed due to the contact area.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A pavement crushing system for a pavement cold regeneration machine includes a rotor cover shell, the two sides of the rotor cover shell are front material and rear material respectively, a first crusher is arranged on the front material, the first crusher includes a first installation, at least two first crushing units are arranged on the first installation, the first crushing unit includes a plurality of first crushing units evenly distributed along the length direction of the first installation, and the first crushing units of different first crushing units are arranged in a staggered manner. By arranging multiple sets of first crushing units arranged in a staggered manner, it is possible to achieve a smaller contact area between large materials and the first crushing teeth when increasing the spacing between the first crushing teeth, thereby reducing the situation where the crushing cannot be completed due to the large contact area sharing the force. At the same time, the staggered arrangement of multiple rows of first crushing teeth can achieve that although some materials pass through a row of first crushing teeth with a larger spacing, the subsequent first crushing teeth will also contact the materials and perform crushing actions, thereby reducing the risk that a single first crushing tooth cannot collide and crush some materials.

[0008] Preferably, the first crushing unit further comprises a first fixing plate, and the first fixing plate is fixedly connected to a plurality of first crushing teeth in the first crushing unit. By setting the first fixing plate, the stability of the first crushing teeth under long-term and multiple impacts can be increased, the deformation risk of the first crushing teeth is reduced, and the service life of the equipment is increased.

[0009] Preferably, the first fixing plate is located above a plurality of first crushing teeth in the first crushing unit where the first fixing plate is located. By arranging the first fixing plate above the first crushing teeth, when the first crushing teeth come into contact with the material, the first fixing plate above will not affect the contact between the first crushing teeth and the material, and will not affect the crushing effect of the first crushing teeth while providing support for the first crushing teeth.

[0010] Preferably, a first mounting hole is provided on the first mounting plate, and the first mounting plate is bolted to the front material door through the first mounting hole. Through the first mounting hole, the first crushing mechanism can be detachably mounted on the inner side of the front material door, and the first crushing mechanisms of different sizes and strengths can be replaced according to the early construction process, damage conditions, roadbed thickness and materials of different old road surfaces, thereby improving the use scenarios of the road crushing system.

[0011] Preferably, a second crushing mechanism is provided on the rear material door, and the second crushing mechanism can perform secondary crushing of bulk materials, further increasing the crushing effect of the crushing system.

[0012] Preferably, the second crushing mechanism comprises a second mounting plate, a second crushing unit is arranged on the second mounting plate, and the second crushing unit comprises a plurality of second crushing teeth evenly arranged along the length direction of the second mounting plate. By means of the arranged second crushing teeth, when the material contacts the second crushing teeth, the force between the materials can crush the material, thereby completing the crushing function of the second crushing mechanism.

[0013] Preferably, at least two second crushing units are arranged on the second mounting plate. By providing a plurality of second crushing units, the probability of the second crushing mechanism contacting the material can be increased, and the crushing effect of the second crushing mechanism can be further improved.

[0014] Preferably, the second crushing teeth of different second crushing units are arranged in a staggered manner. By setting up multiple sets of second crushing units arranged in a staggered manner, a smaller contact area between large materials and the second crushing teeth can be achieved when the spacing between the second crushing teeth is increased, reducing the situation where the larger contact area shares the force and the material cannot be crushed. At the same time, the multiple rows of second crushing teeth arranged in a staggered manner can achieve that although some materials pass through a row of second crushing teeth with a larger spacing, the subsequent second crushing teeth will also contact the materials and perform crushing actions, reducing the risk that a single second crushing tooth cannot collide and crush some materials.

[0015] Preferably, the second crushing unit further comprises a second fixing plate, and the second fixing plate is fixedly connected to a plurality of second crushing teeth in the second crushing unit. The second fixing plate can increase the stability of the second crushing teeth under long-term and multiple impacts, reduce the deformation risk of the second crushing teeth, and increase the service life of the equipment.

[0016] Preferably, the second fixing plate is located below the plurality of second crushing teeth. By arranging the second fixing plate below the second crushing teeth, when the second crushing teeth come into contact with the material, the second fixing plate below will not affect the contact between the second crushing teeth and the material, and will not affect the crushing effect of the second crushing teeth while providing support for the second crushing teeth.

[0017] It can be seen from the above technical solutions that the advantages of the utility model are as follows: by setting up multiple sets of first crushing units arranged in a staggered manner, a smaller contact area can be achieved between large materials and the first crushing teeth when the spacing between the first crushing teeth is increased, reducing the situation where the larger contact area shares the force and the material cannot be crushed. At the same time, the multiple rows of first crushing teeth arranged in a staggered manner can achieve that although some materials pass through a row of first crushing teeth with a larger spacing, the subsequent first crushing teeth will also contact the materials and perform crushing actions, reducing the risk that a single first crushing tooth cannot collide and crush some materials. By setting up the first fixed plate, the stability of the first crushing tooth under long-term and multiple impacts can be increased, the deformation risk of the first crushing tooth is reduced, and the service life of the equipment is increased. By setting the first fixed plate above the first crushing tooth, when the first crushing tooth contacts the material, the upper first fixed plate will not affect the contact between the first crushing tooth and the material, and will not affect the crushing effect of the first crushing tooth while providing support for the first crushing tooth. Through the first mounting hole, the first crushing mechanism can be detachably mounted on the inner side of the front material door. According to the different early construction processes, damage conditions, roadbed thickness and materials of different old roads, the first crushing mechanisms of different sizes and strengths can be replaced, which improves the use scenarios of the road crushing system. The second crushing mechanism can perform secondary crushing of large pieces of materials, further increasing the crushing effect of the crushing system. Through the second crushing teeth, when the material contacts the second crushing teeth, the force between them can crush the material and complete the crushing function of the second crushing mechanism. Through the multiple second crushing units, the probability of the second crushing mechanism contacting the material can be increased, further improving the crushing effect of the second crushing mechanism. By setting multiple sets of second crushing units arranged in a staggered manner, a smaller contact area between large materials and the second crushing teeth can be achieved when the spacing between the second crushing teeth is increased, reducing the situation where the crushing cannot be completed due to the large contact area sharing the force. At the same time, the multiple rows of second crushing teeth arranged in a staggered manner can achieve that although some materials pass through a row of second crushing teeth with a larger spacing, the subsequent second crushing teeth will also contact the materials and perform crushing actions, reducing the risk that a single second crushing tooth cannot collide and crush some materials. The second fixing plate can increase the stability of the second crushing tooth under long-term and multiple impacts, reduce the risk of deformation of the second crushing tooth, and increase the service life of the equipment. By setting the second fixing plate below the second crushing tooth, when the second crushing tooth contacts the material, the second fixing plate below will not affect the contact between the second crushing tooth and the material, and will not affect the crushing effect of the second crushing tooth while providing support for the second crushing tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the working state structure of a specific implementation example of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the first crushing mechanism of a specific implementation example of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the second crushing mechanism of a specific implementation example of the utility model.

[0022] Description of main reference numerals

[0023] In the figure: 1. rotor cover body; 2. front material door; 3. rear material door; 4. first crushing mechanism; 5. first mounting plate; 6. first crushing tooth; 7. first fixing plate; 8. first mounting hole; 9. second crushing mechanism; 10. second mounting plate; 11. second crushing tooth; 12. second fixing plate; 13. second mounting hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] Example:

[0026] like Figure 1-Figure 3As shown, a pavement crushing system for a pavement cold regeneration machine comprises a rotor cover shell 1, with a front material door 2 and a rear material door 3 on both sides of the rotor cover shell 1, a first crushing mechanism 4 is arranged on the front material door 2, the first crushing mechanism 4 comprises a first mounting plate 5, at least two first crushing units are arranged on the first mounting plate 5, the first crushing unit comprises a plurality of first crushing teeth 6 uniformly arranged along the length direction of the first mounting plate 5, in this embodiment, at least 30 first crushing teeth 6 are arranged in a staggered manner in the first crushing unit, and the first crushing teeth 6 of different first crushing units are arranged in a staggered manner, so that by arranging a plurality of sets of staggered first crushing units, a smaller contact area between large materials and the first crushing teeth 6 can be achieved when the spacing between the first crushing teeth 6 is increased, thereby reducing the situation in which the crushing cannot be completed due to the large contact area sharing the force, and at the same time, the staggered multiple rows of first crushing teeth 6 can achieve that although some materials pass through a row of first crushing teeth 6 with a larger spacing, the subsequent first crushing teeth 6 will also contact with the materials and perform crushing action, thereby reducing the risk that a single first crushing tooth 6 cannot collide and crush some materials.

[0027] In the present embodiment, the first crushing unit further includes a first fixed plate 7, and the first fixed plate 7 is fixedly connected to a plurality of first crushing teeth 6 in the first crushing unit where the first fixed plate 7 is located, and the first fixed plate 7 is located above the plurality of first crushing teeth 6 in the first crushing unit where the first fixed plate 7 is located. By so configuring, the first fixed plate 7 can increase the stability of the first crushing teeth 6 under long-term and multiple impacts, reduce the deformation risk of the first crushing teeth 6, and improve the service life of the equipment; by configuring the first fixed plate 7 above the first crushing teeth 6, when the first crushing teeth 6 contact with the material, the first fixed plate 7 above will not affect the contact between the first crushing teeth 6 and the material, and will not affect the crushing effect of the first crushing teeth 6 while providing support for the first crushing teeth 6.

[0028] In the present embodiment, a second crushing mechanism 9 is arranged on the rear material door 3, and the second crushing mechanism 9 includes a second mounting plate 10, and a second crushing unit is arranged on the second mounting plate 10. The second crushing unit includes a plurality of second crushing teeth 11 uniformly arranged along the length direction of the second mounting plate 10. At least two second crushing units are arranged on the second mounting plate 10, and two second crushing units are arranged in the present embodiment. In this way, the second crushing mechanism 9 can perform secondary crushing of bulk materials, further increasing the crushing effect of the crushing system, and the second crushing teeth 11 can be arranged, when the material contacts the second crushing teeth 11, the force between the materials can crush the materials, thereby completing the crushing function of the second crushing mechanism 9, and the plurality of second crushing units can increase the probability of the second crushing mechanism 9 contacting the materials, thereby further improving the crushing effect of the second crushing mechanism 9.

[0029] In this embodiment, the second crushing teeth 11 of different second crushing units are arranged in a staggered manner. In this way, by arranging a plurality of sets of second crushing units arranged in a staggered manner, a smaller contact area can be achieved between large materials and the second crushing teeth 11 when the spacing between the second crushing teeth 11 is increased, thereby reducing the situation in which the crushing cannot be completed due to the larger contact area sharing the force. At the same time, the staggered rows of second crushing teeth 11 can achieve that although some materials pass through a row of second crushing teeth 11 with a larger spacing, the subsequent second crushing teeth 11 will also contact the materials and perform crushing actions, thereby reducing the risk that a single second crushing tooth 11 cannot collide and crush some materials.

[0030] In the present embodiment, the second crushing unit further includes a second fixing plate 12, and the second fixing plate 12 is fixedly connected to a plurality of second crushing teeth 11 in the second crushing unit, and the second fixing plate 12 is located below the plurality of second crushing teeth 11. By so configuring, the second fixing plate 12 can increase the stability of the second crushing teeth 11 under long-term and multiple impacts, reduce the deformation risk of the second crushing teeth 11, and improve the service life of the equipment. By configuring the second fixing plate 12 below the second crushing teeth 11, when the second crushing teeth 11 contact with the material, the second fixing plate 12 below will not affect the contact between the second crushing teeth 11 and the material, and will not affect the crushing effect of the second crushing teeth 11 while providing support for the second crushing teeth 11.

[0031] In this embodiment, a first mounting hole 8 is opened on the first mounting plate 5, and the first mounting plate 5 is bolted to the front material door 2 through the first mounting hole 8. A second mounting hole 13 is opened on the second mounting plate 10, and the second mounting plate 10 is bolted to the rear material door 3 through the second mounting hole 13. In this way, through the first mounting hole 8 and the second mounting hole 13, the first crushing mechanism 4 can be detachably installed on the inner side of the front material door 2, and the second crushing mechanism 9 can be detachably installed on the inner side of the rear material door 3. According to the early construction process, damage condition, roadbed thickness and material of different old road surfaces, the first crushing mechanism 4 and the second crushing mechanism 9 of different sizes and strengths can be replaced, thereby improving the use scenario of the road surface crushing system.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A road surface crushing system for a road surface cold regeneration machine, comprising a rotor cover shell (1), the rotor cover shell (1) having a front material door (2) and a rear material door (3) on both sides, the front material door (2) being provided with a first crushing mechanism (4), characterized in that: The first crushing mechanism (4) comprises a first mounting plate (5), on which at least two first crushing units are arranged, and the first crushing units comprise a plurality of first crushing teeth (6) evenly distributed along the length direction of the first mounting plate (5), and the first crushing teeth (6) of different first crushing units are arranged in a staggered manner.

2. The pavement crushing system for a pavement cold regeneration machine according to claim 1, characterized in that: The first crushing unit also includes a first fixing plate (7), and the first fixing plate (7) is fixedly connected to a plurality of first crushing teeth (6) in the first crushing unit where the first fixing plate (7) is located.

3. The pavement crushing system for a pavement cold regeneration machine according to claim 2, characterized in that: The first fixing plate (7) is located above a plurality of first crushing teeth (6) in the first crushing unit where it is located.

4. The pavement crushing system for a pavement cold regeneration machine according to claim 1, characterized in that: A first mounting hole (8) is provided on the first mounting plate (5), and the first mounting plate (5) is bolted to the front material door (2) via the first mounting hole (8).

5. The pavement crushing system for a pavement cold regeneration machine according to claim 1, characterized in that: A second crushing mechanism (9) is arranged on the rear material door (3).

6. The pavement crushing system for a pavement cold recycler according to claim 5, characterized in that: The second crushing mechanism (9) comprises a second mounting plate (10), on which a second crushing unit is arranged, and the second crushing unit comprises a plurality of second crushing teeth (11) evenly distributed along the length direction of the second mounting plate (10).

7. The pavement crushing system for a pavement cold regeneration machine according to claim 6, characterized in that: At least two second crushing units are arranged on the second mounting plate (10).

8. The pavement crushing system for a pavement cold regeneration machine according to claim 7, characterized in that: The second crushing teeth (11) of different second crushing units are arranged in a staggered manner.

9. The pavement crushing system for a pavement cold regeneration machine according to claim 6, characterized in that: The second crushing unit also includes a second fixing plate (12), and the second fixing plate (12) is fixedly connected to a plurality of second crushing teeth (11) in the second crushing unit.

10. The pavement crushing system for a pavement cold recycler according to claim 9, characterized in that: The second fixing plate (12) is located below the plurality of second crushing teeth (11).

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