Milling and crushing device for cold-in-place recycling base layer of old cement pavement

Abstract

The utility model provides an old cement pavement cold-in-place recycling base layer milling and crushing device which comprises a protective shell, a supporting shell, a milling and crushing mechanism, a spraying mechanism and a crushing mechanism, the outer wall of the protective shell is fixedly connected with the supporting shell, the top end of the supporting shell is fixedly connected with a motor, the milling and crushing mechanism is arranged on the inner side wall of the supporting shell, and the spraying mechanism is fixedly connected with the motor. A spraying mechanism is mounted on the outer wall of the supporting shell, a crushing mechanism is arranged in the supporting shell, an electric push rod is started to push a limiting plate to slide in a sliding groove, the crushing depth is conveniently adjusted, a hydraulic push rod is started to push a push rod to move along a limiting sleeve and a second crushing head, and crushed cement blocks are conveniently subjected to secondary crushing; and the cement block becomes small.

Description

Technical Field

[0001] The utility model relates to the technical field of in-situ cold regeneration base of old cement roads, in particular to a milling and crushing device in a cold regeneration machine. Background Art

[0002] The technology of on-site crushing and cold-regenerating water-stable base of old cement concrete pavement crushes and regenerates the old cement concrete slabs on-site on the original pavement, and then adds new gravel and cement according to the requirements of relevant material mix ratio. Through mature recycling machinery, the crushing, mixing, paving and compaction of materials are completed on-site continuously, and the old cement pavement materials are crushed and recycled as the base, achieving zero waste, reducing environmental pollution and the demand for construction materials, promoting energy conservation and emission reduction, and reducing project costs. It is in line with the current green and low-carbon development concept and has good economic and social benefits.

[0003] According to a road surface crushing and dust reduction device for construction highways, the authorization announcement number is: CN217613794U, which discloses a road surface crushing and dust reduction device for construction highways, belonging to the field of highway construction technology, including a support plate, four moving wheels are installed at the bottom of the support plate, and the four moving wheels are distributed in a rectangular shape. A water tank is installed on the top of the support plate, and two water outlet pipes are connected to the water tank through a valve. The ends of the two water outlet pipes away from the water tank are connected to nozzles, and the top of the support plate is installed by an adjustment mechanism, and the two nozzles are connected to the adjustment mechanism. A crushing mechanism is installed on the top of the support plate, and the adjustment mechanism and the crushing mechanism are respectively located on both sides of the water tank away from each other. The adjustment mechanism includes a driving assembly and two rotating assemblies, and the two rotating assemblies are connected to the driving assembly. The driving assembly includes a driving motor, and the driving motor is vertically installed inside the support plate. The road surface crushing and dust reduction device drives the two nozzles to do fan-shaped reciprocating motion through the adjustment mechanism, which greatly increases the dust reduction range of the nozzles and improves the dust reduction effect.

[0004] The existing crushing device cannot perform secondary crushing of cement blocks, resulting in that larger cement blocks cannot be fully mixed with subsequent materials and cannot perform all-round dust reduction around the construction equipment. Therefore, an on-site cold regeneration base milling and crushing device for old cement pavement is proposed. Summary of the invention

[0005] In view of this, the utility model provides an on-site cold regeneration base milling and crushing device for old cement pavement to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: the milling and crushing device for cold regeneration base of old cement pavement in situ comprises a protective shell, a supporting shell, a milling and crushing mechanism, a spraying mechanism and a crushing mechanism, the outer wall of the protective shell is fixedly connected with the supporting shell, the top of the supporting shell is fixedly connected with a motor, the inner side wall of the supporting shell is provided with a milling and crushing mechanism, the outer wall of the supporting shell is installed with a spraying mechanism, and the interior of the supporting shell is provided with a crushing mechanism;

[0007] The spraying mechanism includes a water tank, a water pump, a water pipe and a water spray head. The top of the support shell is fixedly connected to the water tank, the bottom of the water tank is connected to the water pump, the output end of the water pump is fixedly connected to the water pipe, the outer wall of the water pipe is respectively fixed to the front end of the protective shell and the rear end of the support shell, and the outer wall of the water pipe is connected to a plurality of water spray heads;

[0008] The crushing mechanism includes a limit sleeve, a second crushing head, a support column, a support frame, a hydraulic push rod and a guide groove. The first support plate is fixedly connected to the inside of the protective shell, the bottom end of the first support plate is connected to the limit sleeve, the second crushing head is slidably connected to the inside of the limit sleeve, the top of the second crushing head is fixedly connected to the support column, the outer wall of the support column is slidably connected to the limit sleeve, the top of the support column is fixedly connected to the support frame, and the top of the support frame is fixedly connected to the hydraulic push rod.

[0009] Further preferably, the inner wall of the protective shell is fixedly connected with a slide rail, the outer wall of the slide rail is slidably connected with a guide groove, and guide grooves are respectively provided on both sides of the outer wall of the support frame.

[0010] Further preferably, second support plates are fixedly connected to both sides of the outer wall of the protective shell, the bottom end of the second support plate is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to a limit plate.

[0011] Further preferably, both ends of the protective shell are respectively provided with a slide groove, the interior of the slide groove is slidably connected to a limit plate, and a milling and crushing mechanism is arranged in the middle of the limit plate.

[0012] Further preferably, the milling and crushing mechanism includes a first crushing head, a transmission rod, a rack conveyor belt and a second transmission shaft, the transmission rod is rotatably connected between the limit plates, and one end of the transmission rod is fixedly connected to the second transmission shaft.

[0013] Further preferably, the outer wall of the second transmission shaft is meshingly connected with a rack conveyor belt, and the outer wall of the transmission rod is fixedly connected to a plurality of first crushing heads.

[0014] Further preferably, a motor is fixedly connected to the top of the protective shell, a first transmission shaft is fixedly connected to the output end of the motor, a rack conveyor belt is meshingly connected to the outer wall of the first transmission shaft, and the rack conveyor belt passes through the second support plate.

[0015] The utility model embodiment adopts the above technical solution, which has the following advantages:

[0016] 1. By starting the electric push rod to push the limit plate to slide inside the chute, it is convenient to adjust the crushing depth. By starting the hydraulic push rod to push the push rod to move along the limit sleeve and the second crushing head, it is convenient to perform secondary crushing on the broken cement blocks to make the cement blocks smaller;

[0017] 2. Start the water pump to draw water from the water tank and introduce it into the water pipe, and surround the water pipe along the outer walls of the protective shell and the support shell to facilitate all-round spraying and dust reduction around the equipment to prevent small fragments from floating in the air when breaking cement blocks and causing harm to construction workers. After sprinkling water, the air humidity at the construction site increases and dust decreases, which is beneficial to the respiratory health of construction workers and also helps to improve construction efficiency.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the overall structure diagram of the utility model;

[0021] Figure 2 This is another structural diagram of the utility model as a whole from another angle;

[0022] Figure 3 This is a schematic diagram of the milling and crushing mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the crushing mechanism of the utility model.

[0024] Attached figures: 1. protective shell; 2. supporting shell; 3. motor; 4. slide; 5. first transmission shaft; 6. milling and crushing mechanism; 61. first crushing head; 62. transmission rod; 63. rack conveyor belt; 64. second transmission shaft; 7. spraying mechanism; 71. water tank; 72. water pump; 73. water pipe; 74. water spray head; 8. first support plate; 9. crushing mechanism; 91. limiting sleeve; 92. second crushing head; 93. supporting column; 94. supporting frame; 95. hydraulic push rod; 96. guide groove; 10. slide rail; 11. second support plate; 12. limiting plate; 13. electric push rod. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example

[0027] like Figure 1-Figure 4 As shown, the embodiment of the utility model provides a milling and crushing device for cold regeneration base of old cement pavement in situ, comprising a protective shell 1, a supporting shell 2, a milling and crushing mechanism 6, a spraying mechanism 7 and a crushing mechanism 9, wherein the outer wall of the protective shell 1 is fixedly connected to the supporting shell 2, the top of the supporting shell 2 is fixedly connected to the motor 3, the inner side wall of the supporting shell 2 is provided with the milling and crushing mechanism 6, the outer wall of the supporting shell 2 is installed with the spraying mechanism 7, and the interior of the supporting shell 2 is provided with the crushing mechanism 9;

[0028] The spraying mechanism 7 includes a water tank 71, a water pump 72, a water pipe 73 and a water spray head 74. The top of the support shell 2 is fixedly connected with the water tank 71, the bottom of the water tank 71 is connected with the water pump 72, the output end of the water pump 72 is fixedly connected with the water pipe 73, the outer wall of the water pipe 73 is respectively fixed at the front end of the protective shell 1 and the rear end of the support shell 2, and the outer wall of the water pipe 73 is connected with a plurality of water spray heads 74. By starting the water pump 72 to extract the water inside the water tank 71 and introduce it into the water pipe 73, and the water pipe 73 is surrounded along the outer walls of the protective shell 1 and the support shell 2, it is convenient to spray and reduce dust all around the equipment, so as to prevent the small fragments from floating with the air when the cement blocks are broken, causing harm to the construction workers;

[0029] The crushing mechanism 9 includes a limit sleeve 91, a second crushing head 92, a support column 93, a support frame 94, a hydraulic push rod 95 and a guide groove 96. The inside of the protective shell 1 is fixedly connected with the first support plate 8, the bottom end of the first support plate 8 is connected with the limit sleeve 91, the inside of the limit sleeve 91 is slidably connected with the second crushing head 92, the top of the second crushing head 92 is fixedly connected with the support column 93, the outer wall of the support column 93 is slidably connected with the limit sleeve 91, the top of the support column 93 is fixedly connected with the support frame 94, and the top of the support frame 94 is fixedly connected with the hydraulic push rod 95. By starting the hydraulic push rod 95, the push rod is pushed to move along the limit sleeve 91 and the second crushing head 92, so as to facilitate the secondary crushing of the broken cement blocks and make the cement blocks smaller.

[0030] In one embodiment, specifically, the inner wall of the protective shell 1 is fixedly connected with a slide rail 10, the outer wall of the slide rail 10 is slidably connected with a guide groove 96, and guide grooves 96 are respectively opened on both sides of the outer wall of the support frame 94.

[0031] In one embodiment, specifically, the outer walls of the protective shell 1 are respectively fixedly connected with second support plates 11 on both sides, the bottom end of the second support plate 11 is fixedly connected with an electric push rod 13, and the output end of the electric push rod 13 is fixedly connected with a limit plate 12. By starting the electric push rod 13, the limit plate 12 is pushed to slide inside the slide groove 4, so as to facilitate the adjustment of the crushing depth.

[0032] In one embodiment, specifically, two ends of the protective shell 1 are respectively provided with a slide groove 4, the interior of the slide groove 4 is slidably connected to a limit plate 12, and a milling and crushing mechanism 6 is provided in the middle of the limit plate 12.

[0033] In one embodiment, specifically, the milling and crushing mechanism 6 includes a first crushing head 61, a transmission rod 62, a rack conveyor belt 63 and a second transmission shaft 64, the transmission rod 62 is rotatably connected between the limit plates 12, and one end of the transmission rod 62 is fixedly connected to the second transmission shaft 64.

[0034] In one embodiment, specifically, the outer wall of the second transmission shaft 64 is meshedly connected with a rack conveyor belt 63, and the outer wall of the transmission rod 62 is fixedly connected to a plurality of first crushing heads 61. By starting the motor 3, the first transmission shaft 5 and the second transmission shaft 64 are driven to rotate together, so as to drive the transmission rod 62 and the first crushing head 61 to rotate. By replacing the corresponding rack conveyor belt 63 according to the positions of the first transmission shaft 5 and the second transmission shaft 64, the old cement pavement can be milled and crushed.

[0035] In one embodiment, specifically, the top of the protective shell 1 is fixedly connected to a motor 3, the output end of the motor 3 is fixedly connected to a first transmission shaft 5, the outer wall of the first transmission shaft 5 is meshingly connected to a rack conveyor belt 63, and the rack conveyor belt 63 passes through the second support plate 11. By starting the motor 3, the first transmission shaft 5 and the second transmission shaft 64 are driven to rotate together, so as to drive the transmission rod 62 and the first crushing head 61 to rotate.

[0036] When the utility model is working: the first transmission shaft 5 and the second transmission shaft 64 are driven to rotate together by starting the motor 3, so as to drive the transmission rod 62 and the first crushing head 61 to rotate. By replacing the corresponding rack conveyor belt 63 according to the positions of the first transmission shaft 5 and the second transmission shaft 64, it is convenient to mill and crush the old cement road surface, and the crushed cement blocks are of different sizes, and the larger cement blocks cannot be used for this purpose. By starting the electric push rod 13, the limit plate 12 is pushed to slide inside the slide groove 4, so as to adjust the crushing depth. By starting the hydraulic push rod 95, the push rod is pushed to move along the limit sleeve 91 and the second crushing head 92, so as to perform secondary crushing on the crushed cement blocks to make the cement blocks smaller. By starting the water pump 72, the water inside the water tank 71 is drawn into the water pipe 73, and the water pipe 73 is surrounded along the outer wall of the protective shell 1 and the support shell 2, so as to spray and reduce dust all around the equipment in an all-round manner, so as to prevent the fine fragments from floating with the air when the cement blocks are crushed, causing harm to the construction personnel. After watering, the air humidity at the construction site increases and the dust decreases, which is beneficial to the respiratory health of the construction personnel and also helps to improve the construction efficiency.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A milling and crushing device for cold regeneration of old cement pavement in situ, comprising a protective shell (1), a supporting shell (2), a milling and crushing mechanism (6), a spraying mechanism (7) and a crushing mechanism (9), characterized in that: The outer wall of the protective shell (1) is fixedly connected to a supporting shell (2), the top of the supporting shell (2) is fixedly connected to a motor (3), the inner wall of the supporting shell (2) is provided with a milling and crushing mechanism (6), the outer wall of the supporting shell (2) is installed with a spraying mechanism (7), and the interior of the supporting shell (2) is provided with a crushing mechanism (9); The spraying mechanism (7) comprises a water tank (71), a water pump (72), a water pipe (73) and a water spray head (74); the top end of the support shell (2) is fixedly connected to the water tank (71); the bottom end of the water tank (71) is connected to the water pump (72); the output end of the water pump (72) is fixedly connected to the water pipe (73); the outer wall of the water pipe (73) is respectively fixed to the front end of the protective shell (1) and the rear end of the support shell (2); and the outer wall of the water pipe (73) is connected to a plurality of water spray heads (74); The pulverizing mechanism (9) comprises a limiting sleeve (91), a second crushing head (92), a support column (93), a support frame (94), a hydraulic push rod (95) and a guide groove (96); the first support plate (8) is fixedly connected inside the protective shell (1); the bottom end of the first support plate (8) is connected to the limiting sleeve (91); the second crushing head (92) is slidably connected inside the limiting sleeve (91); the top of the second crushing head (92) is fixedly connected to the support column (93); the outer wall of the support column (93) is slidably connected to the limiting sleeve (91); the top of the support column (93) is fixedly connected to the support frame (94); the top of the support frame (94) is fixedly connected to the hydraulic push rod (95).

2. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 1 is characterized in that: The inner wall of the protective shell (1) is fixedly connected to a slide rail (10), the outer wall of the slide rail (10) is slidably connected to a guide groove (96), and guide grooves (96) are respectively provided on both sides of the outer wall of the support frame (94).

3. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 1 is characterized in that: Second support plates (11) are fixedly connected to both sides of the outer wall of the protective shell (1), the bottom end of the second support plate (11) is fixedly connected to an electric push rod (13), and the output end of the electric push rod (13) is fixedly connected to a limit plate (12).

4. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 1 is characterized in that: Slide grooves (4) are respectively provided at both ends of the protective shell (1), the interior of the slide groove (4) is slidably connected to a limit plate (12), and a milling and crushing mechanism (6) is provided in the middle of the limit plate (12).

5. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 4 is characterized in that: The milling and crushing mechanism (6) comprises a first crushing head (61), a transmission rod (62), a rack conveyor belt (63) and a second transmission shaft (64); the transmission rod (62) is rotatably connected between the limit plates (12); and one end of the transmission rod (62) is fixedly connected to the second transmission shaft (64).

6. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 5 is characterized in that: The outer wall of the second transmission shaft (64) is meshingly connected with a rack conveyor belt (63), and the outer wall of the transmission rod (62) is fixedly connected to a plurality of first crushing heads (61).

7. The milling and crushing device for cold regeneration of old cement pavement in situ according to claim 1 is characterized in that: The top end of the protective shell (1) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a first transmission shaft (5), the outer wall of the first transmission shaft (5) is meshingly connected to a rack conveyor belt (63), and the rack conveyor belt (63) passes through the second support plate (11).

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