Construction waste crushing device for construction engineering

Abstract

The invention relates to the technical field of construction waste treatment, in particular to a construction waste crushing device for construction engineering, which comprises a crushing bin, a crushing roller, an impact frame and a cycloidal pin wheel rotating mechanism, the crushing roller is movably inserted in the crushing bin, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller; the cutter body is used for throwing construction waste out in the tangential direction of the crushing roller; the impact frame is inserted into the crushing bin and is of a C-shaped structure, an opening of the impact frame faces the crushing roller, a plurality of impact lining plates are arranged on the inner arc face, facing the crushing roller, of the impact frame, and the impact lining plates are used for firstly receiving the construction waste thrown out by the cutter body and then impact the construction waste out; the cycloidal-pin wheel rotating mechanism is used for driving the crushing roller to move in a cycloidal-pin wheel rotating mode, so that the distance between the crushing roller and the bottom end of the impact frame is kept unchanged, and therefore it can be guaranteed that only construction waste meeting the particle size requirement can fall from the position between the crushing roller and the bottom end of the impact frame, and the crushing precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction waste treatment, in particular to a construction waste crushing device for construction engineering. Background Art

[0002] A construction project refers to an engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. During the construction process of a construction project, various types of construction waste will be generated due to calculation errors, over-purchasing, poor construction technology and management, such as construction debris, waste mud, engineering waste, demolition waste and decoration waste. If these construction wastes are not handled in time, they will not only occupy land resources, but also pollute the environment.

[0003] The process of treating construction waste mainly includes sorting, crushing, screening and other steps. Among them, crushing equipment is needed to crush construction waste. Common crushing equipment includes jaw crusher, cone crusher, impact crusher and impact crusher. Among them, impact crusher is a crushing equipment widely used in industrial field, mainly used for medium and fine crushing operations. Its working principle is to use the plate hammer on the high-speed rotating rotor to generate impact force on the material, so that the material is repeatedly impacted and collided in the crushing chamber, so as to achieve the crushing effect.

[0004] In the related technology, for example, Chinese patent CN114082483B discloses a multi-stage fine crushing type construction waste crusher. When the multi-stage fine crushing type construction waste crusher is in use, when the construction waste put into the crushing bin contains spherical stones with smooth outer surfaces, the throwing force generated by the rotation of the crushing roller can make the protruding blocks slide outward along the receiving frame, so that the protruding blocks can hit the concave structure on the surface of the spherical stone construction waste, thereby significantly increasing the grip of the blade on the surface of the spherical stone construction waste, so that the surface of the spherical stone construction waste is no longer smooth, so that the spherical stone construction waste can be easily crushed by the crushing roller in cooperation with the primary impact plate, and then guided downward to the secondary impact plate for fine crushing.

[0005] Although the above-mentioned multi-stage fine crushing construction waste crusher can improve the crushing effect of construction waste to a certain extent, it is found in actual use that since the distance between the roller body of the crushing roller and the secondary impact plate is greater than the distance between the knife body and the secondary impact plate, when the knife body passes over the secondary impact plate, the construction waste between the roller body of the crushing roller and the secondary impact plate will fall directly. The construction waste that falls directly includes construction waste with larger particle size, which affects the crushing accuracy, and this part of the construction waste needs to be crushed again, resulting in low crushing efficiency. Summary of the invention

[0006] Based on this, it is necessary to provide a construction waste crushing device for construction engineering to address the problems of low crushing accuracy and low crushing efficiency in the current construction waste crushing process.

[0007] The above purpose is achieved through the following technical solutions: A construction waste crushing device for construction engineering, the construction waste crushing device for construction engineering comprising: Crushing chamber; A crushing roller is movably inserted in the crushing bin, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller, and the cutter bodies are used to throw out the construction waste along the tangential direction of the crushing roller; An impact frame is inserted in the crushing bin and is set to a C-shaped structure. The opening of the impact frame faces the crushing roller. A plurality of impact liners are arranged on the inner arc surface of the impact frame facing the crushing roller. The impact liners are used to first receive the construction waste thrown out by the cutter body and then impact it out. A cycloidal pinwheel rotating mechanism is configured to drive the crushing roller to move in a cycloidal pinwheel rotating manner so that the distance between the crushing roller and the bottom end of the impact frame remains unchanged.

[0008] Furthermore, the cycloidal pinwheel rotation mechanism includes a center shaft and a needle tooth housing, the center shaft passes through the crushing bin and can rotate, the axis of the center shaft is parallel to the axis of the crushing roller, an eccentric wheel is eccentrically and fixedly sleeved on the center shaft, a cycloidal wheel is fixedly sleeved on the eccentric wheel, the outer peripheral wall shape of the cycloidal wheel is set to be wavy, and has a number of peaks and troughs equal to the number of the knife body, and a trough is set between every two adjacent peaks, and the knife body and the trough are correspondingly arranged; the crushing roller is coaxially and fixedly arranged on the end face of the cycloidal wheel; the needle tooth housing is fixedly arranged on the outside of the crushing bin and coaxially arranged with the center shaft, and a plurality of needle tooth columns are inserted parallel to the internal axis of the needle tooth housing, the plurality of needle tooth columns are arranged at equal intervals along the circumferential direction, and the needle tooth columns are meshed with the cycloidal wheel.

[0009] Furthermore, there are two eccentric wheels, which are staggered by 180 degrees, and each of the eccentric wheels is fixedly sleeved with the cycloid wheel.

[0010] Furthermore, the bottom end of the inner arc surface of the impact frame is provided with wavy teeth.

[0011] Furthermore, the cycloid pinwheel rotation mechanism also includes a driving assembly, and the driving assembly is configured to provide a driving force for the rotation of the central shaft.

[0012] Furthermore, the driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel and a transmission member, the first transmission wheel is fixedly sleeved on the motor shaft of the driving motor, the second transmission wheel is fixedly sleeved on the central axis, and the transmission member is simultaneously transmission-connected between the first transmission wheel and the second transmission wheel.

[0013] Furthermore, the construction waste crushing device for construction engineering also includes a supporting mechanism, and the supporting mechanism is used to support the crushing roller.

[0014] Furthermore, the construction waste crushing device for construction engineering also includes an adjusting mechanism, and the adjusting mechanism is configured to adjust the opening direction of the impact frame.

[0015] Furthermore, the adjustment mechanism includes a pull rod and a telescopic rod. The pull rod passes through the crushing bin and is fixedly arranged on the impact frame and can slide along its own length direction; one end of the telescopic rod is fixedly arranged on the inner wall of the crushing bin and the other end is hinged on the impact frame.

[0016] Furthermore, there are multiple impact racks, which are arranged at intervals along the circumference of the crushing roller.

[0017] The beneficial effects of the present invention are: The construction waste crushing device provided by the present invention is used for construction projects. When in use, the crushing roller is first driven by the cycloidal pinwheel rotating mechanism to move in a cycloidal pinwheel rotating manner so that the distance between the crushing roller and the bottom end of the impact frame remains unchanged, and then the construction waste is thrown into the crushing bin. Under the action of gravity, the construction waste first falls on the crushing roller, and is then driven by the cutter body to be thrown out along the tangential direction of the crushing roller, and then falls on the impact lining plate, and is impacted out by the impact lining plate, and falls on the crushing roller again, and reciprocates to achieve collision crushing. Until the particle size of the construction waste reaches the requirement, the construction waste can pass through the crushing roller and the bottom end of the impact frame, thereby ensuring the crushing accuracy and avoiding the occurrence of re-crushing, which is beneficial to improving the crushing efficiency; and by setting the crushing roller to move in a cycloidal manner, the crushing roller can realize eccentric rotation, and while increasing the crushing force, it can process smooth or difficult-to-crush construction waste, which is beneficial to improving the versatility of the crushing device.

[0018] Furthermore, by providing two eccentric wheels, which are staggered by 180 degrees, and each eccentric wheel is fixedly sleeved with a cycloidal wheel, when in use, at least one cycloidal wheel is in contact with the needle tooth column at the bottom of the needle tooth housing, so that the crushing roller can be supported by the central shaft and the needle tooth housing at the same time, thereby improving the stability of the crushing roller during movement and helping to extend its service life.

[0019] Furthermore, by providing wavy teeth at the bottom end of the inner arc surface of the impact frame, a cycloidal pinwheel-like movement is formed between the cutter body and the teeth during use, thereby further ensuring the distance accuracy between the crushing roller and the bottom end of the impact frame, thereby further improving the crushing accuracy.

[0020] Furthermore, by providing a plurality of impact racks and arranging them at intervals along the circumference of the crushing roller, when in use, the plurality of impact racks can increase the number of impacts of the construction waste inside the crushing bin, thereby achieving a fine crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a construction waste crushing device for construction engineering provided by one embodiment of the present invention; Figure 2 A schematic side view of a construction waste crushing device for construction engineering provided by one embodiment of the present invention; Figure 3 for Figure 2 Middle AA section view; Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at B in the middle; Figure 5 A schematic front view of a construction waste crushing device for construction engineering provided by one embodiment of the present invention; Figure 6 for Figure 5 Middle CC section view; Figure 7 A schematic diagram of the three-dimensional structure of a crushing roller and a cycloidal pinwheel rotating mechanism of a construction waste crushing device for construction engineering provided by an embodiment of the present invention when assembled; Figure 8 A schematic diagram of the disassembled parts of a crushing roller and a cycloidal pinwheel rotating mechanism of a construction waste crushing device for construction engineering provided by an embodiment of the present invention during assembly; Fig. 9 for Figure 8 Schematic diagram of the local enlarged structure at point D in the middle.

[0022] in: 1. Crushing bin; 101. Feeding port; 102. Discharging port; 2. Crushing roller; 21. Cutter body; 3. Impact frame; 31. Impact lining plate; 32. Teeth; 4. Cycloidal pinwheel rotating mechanism; 41. Central shaft; 42. Eccentric wheel; 43. Cycloidal wheel; 44. Pin gear housing; 441. Pin gear column; 45. Driving assembly; 451. Driving motor; 452. First pulley; 453. Second pulley; 454. Transmission belt; 5. Adjustment mechanism; 51. Pull rod; 52. Telescopic rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figures 1 to 9 As shown, a construction waste crushing device for construction projects provided by an embodiment of the present invention is used for crushing construction waste, and is configured to include a crushing bin 1, a crushing roller 2, an impact frame 3 and a cycloidal pinwheel rotating mechanism 4, wherein the crushing roller 2 is movably inserted in the crushing bin 1, and a plurality of cutter bodies 21 are arranged on the circumferential side wall of the crushing roller 2, and the cutter bodies 21 are used to throw out the construction waste along the tangential direction of the crushing roller 2; the impact frame 3 is inserted in the crushing bin 1, and is configured to be a C-shaped structure, the opening of the impact frame 3 faces the crushing roller 2, and a plurality of impact linings 31 are arranged on the inner arc surface of the impact frame 3 facing the crushing roller 2, and the impact linings 31 are used to first receive the construction waste thrown out by the cutter bodies 21, and then impact it out; the cycloidal pinwheel rotating mechanism 4 is configured to be able to drive the crushing roller 2 to move in a cycloidal pinwheel rotation manner, so that the distance between the crushing roller 2 and the bottom end of the impact frame 3 remains unchanged.

[0027] Specifically in this embodiment, Figure 1 As shown, the crushing chamber 1 is configured as a box structure; in order to facilitate receiving and discharging construction waste, as shown in FIG. Figure 6 As shown, a feed port 101 is provided on the left side of the top of the crushing bin 1, and the feed port 101 is used to receive construction waste. The bottom of the crushing bin 1 is open and has a discharge port 102 formed thereon, and the discharge port 102 is used to discharge the crushed construction waste.

[0028] like Figure 6 As shown, the crushing roller 2 is horizontally arranged during installation and is located at the lower left corner of the crushing chamber 1; Figure 7 As shown, the cutter body 21 is configured as a strip structure, and is inserted parallel to the circumferential side wall of the crushing roller 2 during installation, and the edge of the cutter body 21 along the radial direction of the crushing roller 2 exceeds the circumferential side wall of the crushing roller 2. The number of the cutter bodies 21 can be eight, and they are arranged at equal intervals along the circumferential direction.

[0029] like Figure 6 As shown, the impact frame 3 is configured as a plate-like structure and is horizontally arranged during installation and located at the upper right corner of the crushing chamber 1 ; the number of the impact liner plates 31 can be five and they are overlapped and arranged along the circumference of the impact frame 3 .

[0030] When in use, the crushing roller 2 is first driven by the cycloidal pinwheel rotating mechanism 4 to move in a cycloidal pinwheel rotation manner so that the distance between the crushing roller 2 and the bottom end of the impact frame 3 remains unchanged, and then the construction waste is thrown into the crushing bin 1 through the feed port 101. The construction waste first falls on the crushing roller 2 under the action of gravity, and then is driven by the cutter body 21 to be thrown out along the tangential direction of the crushing roller 2, and then falls on the impact lining 31, and is impacted out by the impact lining 31, and falls on the crushing roller 2 again, and reciprocates to achieve collision crushing, until the particle size of the construction waste reaches the requirement, the construction waste can pass between the crushing roller 2 and the bottom end of the impact frame 3, and be discharged from the discharge port 102, thereby ensuring the crushing accuracy while avoiding the occurrence of re-crushing, which is beneficial to improving the crushing efficiency; and by setting the crushing roller 2 to move in a cycloidal manner, the crushing roller 2 can realize eccentric rotation, while increasing the crushing force, it can also process smooth or difficult-to-crush construction waste, which is beneficial to improving the versatility of the crushing device.

[0031] In some embodiments, the cycloidal pinwheel rotating mechanism 4 is configured to include a central shaft 41 and a needle tooth housing 44. The central shaft 41 is arranged to pass through the crushing chamber 1 and can rotate on its own. The axis of the central shaft 41 is parallel to the axis of the crushing roller 2. An eccentric wheel 42 is eccentrically and fixedly sleeved on the central shaft 41, and a cycloidal wheel 43 is fixedly sleeved on the eccentric wheel 42. The outer peripheral wall shape of the cycloidal wheel 43 is configured to be wavy and has a number of peaks and troughs equal to the number of the blade body 21, and a trough is arranged between each two adjacent peaks, and the blade body 21 and the trough are correspondingly arranged; the crushing roller 2 is coaxially and fixedly arranged on the end face of the cycloidal wheel 43; the needle tooth housing 44 is fixedly arranged on the outside of the crushing chamber 1 and is coaxially arranged with the central shaft 41, and a plurality of needle tooth columns 441 are inserted parallel to the internal axis of the needle tooth housing 44, and the plurality of needle tooth columns 441 are arranged at equal intervals along the circumferential direction, and the needle tooth columns 441 are meshed with the cycloidal wheel 43.

[0032] Specifically in this embodiment, Figure 3 and Figure 4 As shown, the central shaft 41 is arranged at the lower left corner of the crushing chamber 1 and penetrates the front side wall of the crushing chamber 1; the pinion housing 44 is fixedly arranged on the front side wall of the crushing chamber 1; the eccentric wheel 42 is arranged to be composed of a cam part and a bearing part, wherein the inner layer of the bearing part is fixedly sleeved on the outside of the cam part during installation, and the cycloid wheel 43 is fixedly sleeved on the outer layer of the bearing part during installation; Fig. 9 As shown, the outer peripheral wall of the cycloid wheel 43 has eight wave crests and eight wave troughs, the eight wave crests are arranged at equal intervals along the circumferential direction, and the eight wave troughs are arranged at equal intervals along the circumferential direction; the needle tooth housing 44 is configured as an annular shell structure, and the two ends of the needle tooth column 441 are respectively vertically arranged on the two inner end surfaces of the needle tooth housing 44 during installation. The number of the needle tooth columns 441 can be set to nine, and they are arranged at equal intervals along the circumferential direction.

[0033] When in use, the center shaft 41 is driven to rotate, and the center shaft 41 synchronously drives the cam part to rotate eccentrically, the cam part synchronously drives the inner layer of the bearing part to rotate eccentrically, the inner layer of the bearing part synchronously drives the outer layer of the bearing part to swing back and forth, the outer layer of the bearing part synchronously drives the cycloidal wheel 43 to swing back and forth, and the engagement between the cycloidal wheel 43 and the pin tooth column 441 enables the cycloidal wheel 43 to rotate on its own, thereby synchronously driving the crushing roller 2 to rotate and swing back and forth.

[0034] During the movement of the crushing roller 2, due to the corresponding arrangement of the troughs of the cutter body 21 and the cycloidal wheel 43, when the cutter body 21 moves to correspond to the bottom end of the impact frame 3, the crushing roller 2 synchronously moves away from the bottom end of the impact frame 3, so that the size of the outlet formed by the bottom end of the crushing roller 2 and the impact frame 3 remains unchanged; when the part between the cutter body 21 on the crushing roller 2 moves to correspond to the bottom end of the impact frame 3, the crushing roller 2 synchronously moves toward the bottom end of the impact frame 3, so that the size of the outlet formed by the bottom end of the crushing roller 2 and the impact frame 3 remains unchanged.

[0035] In a further embodiment, there are two eccentric wheels 42 , which are staggered by 180 degrees, and each eccentric wheel 42 is fixedly sleeved with a cycloid wheel 43 .

[0036] Specifically in this embodiment, Fig. 9 As shown, the convex ends of the cam portions of the two eccentric wheels 42 are arranged opposite to each other.

[0037] During the movement of the crushing roller 2, when one of the cycloidal wheels 43 moves toward the bottom end of the impact frame 3, the other cycloidal wheel 43 moves synchronously toward the bottom end of the impact frame 3, so that at least one cycloidal wheel 43 contacts the needle tooth column 441 located at the bottom of the needle tooth housing 44, so that the crushing roller 2 can be supported by the central shaft 41 and the needle tooth housing 44 at the same time, thereby improving the stability of the crushing roller 2 during movement and helping to extend its service life.

[0038] In other embodiments, the bottom end of the inner arc surface of the impact frame 3 is provided with wavy teeth 32 .

[0039] Specifically in this embodiment, Figure 6 As shown, the convex surface of the teeth 32 is arranged toward the crushing roller 2 .

[0040] When in use, a cycloidal pinwheel motion is formed between the cutter body 21 and the teeth 32, so that the distance accuracy between the crushing roller 2 and the bottom end of the impact frame 3 can be further guaranteed, thereby further improving the crushing accuracy.

[0041] In other embodiments, the cycloid pinwheel rotating mechanism 4 is configured to further include a driving assembly 45 , and the driving assembly 45 is configured to provide a driving force for the central shaft 41 to rotate.

[0042] Specifically in this embodiment, the driving component 45 can be configured to include a driving motor 451, a first transmission wheel, a second transmission wheel and a transmission member, the first transmission wheel is fixedly sleeved on the motor shaft of the driving motor 451, the second transmission wheel is fixedly sleeved on the central axis 41, and the transmission member is simultaneously transmission-connected between the first transmission wheel and the second transmission wheel.

[0043] More specifically, the first transmission wheel can be set as the first pulley 452, the second transmission wheel can be set as the second pulley 453, the transmission member can be set as the transmission belt 454, and the transmission belt 454 is frictionally sleeved on the first pulley 452 and the second pulley 453 during installation.

[0044] When in use, the driving motor 451 is started, the driving motor 451 drives the first pulley 452 to rotate, the first pulley 452 drives the second pulley 453 to rotate synchronously through the transmission belt 454, and the second pulley 453 drives the central shaft 41 to rotate synchronously.

[0045] It is understandable that the first transmission wheel can also be set as a first sprocket, the second transmission wheel can be set as a second sprocket, and the transmission member can be set as an endless chain, which is simultaneously transmission-sleeved on the first sprocket and the second sprocket during installation.

[0046] In other embodiments, in order to better support the crushing roller 2 , the construction waste crushing device for construction engineering is configured to further include a supporting mechanism, and the supporting mechanism is used to support the crushing roller 2 .

[0047] Specifically in this embodiment, the support mechanism can be configured to include a support shaft and a support groove, wherein the support shaft is coaxially and fixedly arranged on the end face of the crushing roller 2 away from the central axis 41, and the support groove is configured as an annular groove structure and is opened on the inner wall of the crushing bin 1. The support shaft is slidably inserted into the support groove during installation, thereby being able to provide bidirectional support for the crushing roller 2.

[0048] In other embodiments, the supporting mechanism can also be configured to have the same structure as the cycloidal pinwheel rotating mechanism 4 except the driving assembly 45, and when installed, it is symmetrically arranged at both ends of the crushing roller 2 with the cycloidal pinwheel rotating mechanism 4, so as to provide bidirectional support for the crushing roller 2.

[0049] In other embodiments, the construction waste crushing device for construction engineering is configured to further include an adjusting mechanism 5 , and the adjusting mechanism 5 is configured to be able to adjust the opening direction of the impact frame 3 .

[0050] Specifically in this embodiment, the adjustment mechanism 5 can be configured to include a pull rod 51 and a telescopic rod 52. The pull rod 51 is set to pass through the crushing chamber 1 and is fixedly set on the impact frame 3 and can slide along its own length direction; one end of the telescopic rod 52 is fixedly set on the inner wall of the crushing chamber 1, and the other end is hinged on the impact frame 3.

[0051] like Figure 6 As shown, the pull rod 51 is set through the top right side of the crushing chamber 1 during installation, and is fixedly connected to the left side of the outer arc surface of the impact frame 3; the telescopic rod 52 is fixedly set on the inner top wall of the crushing chamber 1 at the fixed end during installation, and the movable end is hinged on the right side of the outer arc surface of the impact frame 3.

[0052] In order to facilitate the sliding of the pull rod 51 along its own length direction, a nut is provided on the top of the crushing chamber 1 . The nut can rotate on its own and is threadedly sleeved on the pull rod 51 .

[0053] During use, the nut is rotated, and the nut drives the pull rod 51 to be inserted into or pulled out of the crushing bin 1 through threaded engagement, so that the particle size range of the crushed construction waste can be controlled by changing the gap size between the crushing roller 2 and the impact frame 3.

[0054] In other embodiments, in order to further improve the crushing accuracy, a plurality of impact racks 3 may be provided and arranged at intervals along the circumference of the crushing roller 2 .

[0055] Specifically in this embodiment, the number of the counter-attack rack 3 is set to two as an example. Figure 6 As shown, one of the impact racks 3 is located at the upper right side, and the other impact rack 3 is located at the lower right side.

[0056] When in use, after the construction waste is driven by the cutter body 21 and thrown out along the tangential direction of the crushing roller 2, it can first fall on the impact lining 31 located on the upper right side, and be rebounded out by the impact lining 31, and fall on the crushing roller 2 again, and then fall on the impact lining 31 located on the lower right side, and be rebounded out by the impact lining 31, and fall on the crushing roller 2 again, and so on, to achieve a fine crushing effect.

[0057] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A construction waste crushing device for construction engineering, characterized in that: The construction waste crushing device for construction engineering comprises: Crushing chamber; A crushing roller is movably inserted in the crushing bin, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller, and the cutter bodies are used to throw out the construction waste along the tangential direction of the crushing roller; An impact frame is inserted in the crushing bin and is set to a C-shaped structure. The opening of the impact frame faces the crushing roller. A plurality of impact liners are arranged on the inner arc surface of the impact frame facing the crushing roller. The impact liners are used to first receive the construction waste thrown out by the cutter body and then impact it out. A cycloidal pinwheel rotating mechanism is configured to drive the crushing roller to move in a cycloidal pinwheel rotating manner so that the distance between the crushing roller and the bottom end of the impact frame remains unchanged.

2. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The cycloidal pinwheel rotating mechanism includes a central shaft and a needle tooth housing, wherein the central shaft passes through the crushing bin and can rotate on its own, the axis of the central shaft is parallel to the axis of the crushing roller, an eccentric wheel is eccentrically and fixedly sleeved on the central shaft, a cycloidal wheel is fixedly sleeved on the eccentric wheel, the outer peripheral wall shape of the cycloidal wheel is arranged in a wavy shape, and has a number of peaks and troughs equal to the number of the knife body, and a trough is arranged between every two adjacent peaks, and the knife body and the trough are arranged correspondingly; the crushing roller is coaxially and fixedly arranged on the end face of the cycloidal wheel; the needle tooth housing is fixedly arranged on the outside of the crushing bin and coaxially arranged with the central shaft, a plurality of needle tooth columns are inserted in parallel with the internal axis of the needle tooth housing, the plurality of needle tooth columns are arranged at equal intervals along the circumferential direction, and the needle tooth columns are meshed with the cycloidal wheel.

3. The construction waste crushing device for construction engineering according to claim 2, characterized in that: There are two eccentric wheels, which are staggered by 180 degrees. Each eccentric wheel is fixedly sleeved with the cycloid wheel.

4. The construction waste crushing device for construction engineering according to claim 2, characterized in that: The bottom end of the inner arc surface of the impact frame is provided with wavy teeth.

5. The construction waste crushing device for construction engineering according to claim 2, characterized in that: The cycloid pinwheel rotation mechanism further includes a driving assembly configured to provide a driving force for the center shaft to rotate.

6. The construction waste crushing device for construction engineering according to claim 5, characterized in that: The driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel and a transmission member. The first transmission wheel is fixedly sleeved on the motor shaft of the driving motor, the second transmission wheel is fixedly sleeved on the central shaft, and the transmission member is simultaneously transmission-connected between the first transmission wheel and the second transmission wheel.

7. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The construction waste crushing device for construction engineering further comprises a supporting mechanism, and the supporting mechanism is used for supporting the crushing roller.

8. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The construction waste crushing device for construction engineering further comprises an adjusting mechanism, and the adjusting mechanism is configured to be able to adjust the opening direction of the impact frame.

9. The construction waste crushing device for construction engineering according to claim 8, characterized in that: The adjustment mechanism includes a pull rod and a telescopic rod. The pull rod passes through the crushing bin and is fixed on the impact frame and can slide along its own length direction. One end of the telescopic rod is fixed on the inner wall of the crushing bin and the other end is hinged on the impact frame.

10. The construction waste crushing device for construction engineering according to claim 1, characterized in that: There are multiple impact racks, which are arranged at intervals along the circumference of the crushing roller.

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